200,000+ products from a single source!

sales@angenechem.com

Home > Amines > 67992-58-9

67992-58-9

67992-58-9 | Benzoic acid, 3-[[2-[[3-(acetylmethylamino)-2,4,6-triiodo-5-[(methylamino)carbonyl]benzoyl]amino]acetyl]amino]-5-[[(2-hydroxyethyl)amino]carbonyl]-2,4,6-triiodo-, sodium salt (1:1)

CAS No: 67992-58-9 Catalog No: AG0036TD MDL No:

Product Description

Catalog Number:
AG0036TD
Chemical Name:
Benzoic acid, 3-[[2-[[3-(acetylmethylamino)-2,4,6-triiodo-5-[(methylamino)carbonyl]benzoyl]amino]acetyl]amino]-5-[[(2-hydroxyethyl)amino]carbonyl]-2,4,6-triiodo-, sodium salt (1:1)
CAS Number:
67992-58-9
Molecular Formula:
C24H20I6N5NaO8
Molecular Weight:
1290.8609
IUPAC Name:
sodium;3-[[2-[[3-[acetyl(methyl)amino]-2,4,6-triiodo-5-(methylcarbamoyl)benzoyl]amino]acetyl]amino]-5-(2-hydroxyethylcarbamoyl)-2,4,6-triiodobenzoate
InChI:
InChI=1S/C24H21I6N5O8.Na/c1-7(37)35(3)20-17(29)10(21(39)31-2)13(25)11(18(20)30)23(41)33-6-8(38)34-19-15(27)9(22(40)32-4-5-36)14(26)12(16(19)28)24(42)43;/h36H,4-6H2,1-3H3,(H,31,39)(H,32,40)(H,33,41)(H,34,38)(H,42,43);/q;+1/p-1
InChI Key:
MBVDCEVFLAONHO-UHFFFAOYSA-M
SMILES:
OCCNC(=O)c1c(I)c(NC(=O)CNC(=O)c2c(I)c(NCC(=O)C)c(c(c2I)C(=O)NC)I)c(c(c1I)C(=O)[O-])I.[Na+]
EC Number:
268-060-2
UNII:
HQ43CN02U9

Properties

Complexity:
1100  
Compound Is Canonicalized:
Yes
Covalently-Bonded Unit Count:
2  
Defined Atom Stereocenter Count:
0
Defined Bond Stereocenter Count:
0
Exact Mass:
1290.548g/mol
Formal Charge:
0
Heavy Atom Count:
44  
Hydrogen Bond Acceptor Count:
8  
Hydrogen Bond Donor Count:
5  
Isotope Atom Count:
0
Molecular Weight:
1290.868g/mol
Monoisotopic Mass:
1290.548g/mol
Rotatable Bond Count:
10  
Topological Polar Surface Area:
197A^2
Undefined Atom Stereocenter Count:
0
Undefined Bond Stereocenter Count:
0

Literature

Title Journal
Initial application of EPIC-μCT to assess mouse articular cartilage morphology and composition: effects of aging and treadmill running. Osteoarthritis and cartilage 20120801
CT arthrography of the human knee to measure cartilage quality with low radiation dose. Osteoarthritis and cartilage 20120701
Intrarenal application of N-acetylcysteine for the prevention of contrast medium-induced nephropathy in primary angioplasty. Coronary artery disease 20120601
Impact of anticoagulation on ionic and nonionic contrast media effect on thrombogenesis and fibrinolysis: The PEPCIT study. Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions 20120401
In vivo evaluation of cisplatin-loaded superabsorbent polymer microspheres for use in chemoembolization of VX2 liver tumors. Journal of vascular and interventional radiology : JVIR 20120301
Retention of iodinated contrast material within renal cysts in a patient with autosomal dominant polycystic kidney disease. The British journal of radiology 20120301
Contrast-enhanced CT of articular cartilage: experimental study for quantification of glycosaminoglycan content in articular cartilage. Radiology 20111201
Clinically applied CT arthrography to measure the sulphated glycosaminoglycan content of cartilage. Osteoarthritis and cartilage 20111001
Computed tomography detects changes in contrast agent diffusion after collagen cross-linking typical to natural aging of articular cartilage. Osteoarthritis and cartilage 20111001
Contrast agent electrostatic attraction rather than repulsion to glycosaminoglycans affords a greater contrast uptake ratio and improved quantitative CT imaging in cartilage. Osteoarthritis and cartilage 20110801
Topical intranasal ioxaglate meglumine 39.3% and ioxaglate sodium 19.6% (Hexabrix) reduces the acute response to nasal challenge with allergen. The Journal of allergy and clinical immunology 20110701
Torsade de pointes induced by ioxaglate intracoronary injection in patients with pre-existent drug-induced QT prolongation: case reports and review of literature. Fundamental & clinical pharmacology 20110601
Acute thyrotoxicosis secondary to destructive thyroiditis associated with cardiac catheterization contrast dye. Thyroid : official journal of the American Thyroid Association 20110401
Ionic contrast media induced more apoptosis in diabetic kidney than nonionic contrast media. Journal of nephrology 20110101
Formalin fixation affects equilibrium partitioning of an ionic contrast agent-microcomputed tomography (EPIC-μCT) imaging of osteochondral samples. Osteoarthritis and cartilage 20101201
Observation of intravascular changes of superabsorbent polymer microsphere (SAP-MS) with monochromatic X-ray imaging. Cardiovascular and interventional radiology 20101001
Constriction of the vasa recta, the vessels supplying the area at risk for acute kidney injury, by four different iodinated contrast media, evaluating ionic, nonionic, monomeric and dimeric agents. Investigative radiology 20100801
Similar inhibition of platelet adhesion, P-selectin expression and plasma coagulation by ioversol, iodixanol and ioxaglate. The British journal of radiology 20100501
Rotator cuff tears: should abduction and external rotation (ABER) positioning be performed before image acquisition? A CT arthrography study. European radiology 20100501
Effect of sodium bicarbonate in an experimental model of radiocontrast nephropathy. Renal failure 20100101
Simultaneous computed tomography of articular cartilage and subchondral bone. Osteoarthritis and cartilage 20091201
Diffusion and near-equilibrium distribution of MRI and CT contrast agents in articular cartilage. Physics in medicine and biology 20091121
Preventing acute decrease in renal function induced by coronary angiography (PRECORD): a prospective randomized trial. Archives of cardiovascular diseases 20091101
The relative renal safety of iodixanol compared with low-osmolar contrast media: a meta-analysis of randomized controlled trials. JACC. Cardiovascular interventions 20090701
Contrast-induced acute kidney injury in renal transplant recipients after cardiac catheterization. Clinical nephrology 20090601
Ionic low-osmolar versus nonionic iso-osmolar contrast media to obviate worsening nephropathy after angioplasty in chronic renal failure patients: the ICON (Ionic versus non-ionic Contrast to Obviate worsening Nephropathy after angioplasty in chronic renal failure patients) study. JACC. Cardiovascular interventions 20090501
Quantitative assessment of articular cartilage morphology via EPIC-microCT. Osteoarthritis and cartilage 20090301
pQCT study on diffusion and equilibrium distribution of iodinated anionic contrast agent in human articular cartilage--associations to matrix composition and integrity. Osteoarthritis and cartilage 20090101
Contrast agent-enhanced computed tomography of articular cartilage: association with tissue composition and properties. Acta radiologica (Stockholm, Sweden : 1987) 20090101
Conclusion of recent 'osmolality trials' in preventing contrast-induced nephropathy by NAC--what is the standard? Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 20080701
Postmortem diagnosis of fatal anaphylaxis during intravenous administration of therapeutic and diagnostic agents: evaluation of clinical laboratory parameters and immunohistochemistry in three cases. Legal medicine (Tokyo, Japan) 20080501
Comparative rheology of low- and iso-osmolarity contrast agents at different temperatures. Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions 20080101
In vivo evaluation of a new embolic spherical particle (HepaSphere) in a kidney animal model. Cardiovascular and interventional radiology 20080101
Removal of contrast medium from the coronary sinus during coronary angiography: feasibility of a simple and available technique for the prevention of nephropathy. Cardiovascular revascularization medicine : including molecular interventions 20080101
Bland embolization of hepatocellular carcinoma using superabsorbent polymer microspheres. Cardiovascular and interventional radiology 20080101
Imaging of experimental osteoarthritis in small animal models. Biorheology 20080101
Education and imaging. Hepatobiliary and pancreatic: biliary tract opacification after angiography. Journal of gastroenterology and hepatology 20071101
Comparison of the usefulness of gadodiamide and iodine mixture versus iodinated contrast alone for prevention of contrast-induced nephropathy in patients with chronic kidney disease undergoing coronary angiography. The American journal of cardiology 20071001
Allergic reaction to contrast medium following gastric band adjustment. Obesity surgery 20071001
Visipaque (iodixanol) and hexabrix (ioxaglate) in renal insufficiency. Journal of the American College of Cardiology 20070417
Evaluation and comparison between visipaque (iodixanol) and hexabrix (ioxaglate) in coronary angiography. Journal of the American College of Cardiology 20070417
Iodixanol vs ioxaglate for preventing contrast nephropathy: who is winner? Kidney international 20070401
Effects of iodinated contrast media on endothelium: An in vitro study. Toxicology in vitro : an international journal published in association with BIBRA 20070301
Contrast agent enhanced pQCT of articular cartilage. Physics in medicine and biology 20070221
Renal failure in 57 925 patients undergoing coronary procedures using iso-osmolar or low-osmolar contrast media. Kidney international 20061101
Renal toxicity evaluation and comparison between visipaque (iodixanol) and hexabrix (ioxaglate) in patients with renal insufficiency undergoing coronary angiography: the RECOVER study: a randomized controlled trial. Journal of the American College of Cardiology 20060905
A randomized trial of saline hydration to prevent contrast nephropathy in chronic renal failure patients. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 20060801
Cardiac events after low osmolar ionic or isosmolar nonionic contrast media utilization in the current era of coronary angioplasty. Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions 20060601
Usefulness of a new grading system based on coronary flow velocity pattern in predicting outcome in patients with acute myocardial infarction having percutaneous coronary intervention. The American journal of cardiology 20051001
The effect of contrast media on the synovial membrane. European journal of radiology 20050901
Adverse reactions of low osmolar non-ionic and ionic contrast media when used together or separately during percutaneous coronary intervention. Heart, lung & circulation 20050901
N-acetylcysteine does not prevent contrast induced nephropathy after cardiac catheterisation with an ionic low osmolality contrast medium: a multicentre clinical trial. Heart (British Cardiac Society) 20050601
Contrast medium attenuates platelet activation and platelet-leukocyte cross-talk. Thrombosis and haemostasis 20050501
Ultrasound findings of iodide mumps. The British journal of radiology 20050201
The effects of carbon dioxide versus ioxaglate in the rat kidney. Journal of vascular and interventional radiology : JVIR 20050201
Contrast-induced nephropathy after percutaneous coronary interventions in relation to chronic kidney disease and hemodynamic variables. The American journal of cardiology 20050101
Renal effects of CO2 and iodinated contrast media in patients undergoing renovascular intervention: a prospective, randomized study. Journal of vascular and interventional radiology : JVIR 20050101
Influence of contrast media (iopromide, ioxaglate, gadolinium-DOTA) on blood viscosity, erythrocyte morphology and platelet function. Clinical hemorheology and microcirculation 20050101
Similarity and difference in the acute lung injury induced by a radiographic contrast medium and an anticancer agent paclitaxel in rats. Toxicology letters 20040830
Prediction of the no-reflow phenomenon with ultrasonic tissue characterization in patients with anterior wall acute myocardial infarction. The American journal of cardiology 20040601
Role of osmolality of contrast media in the development of post-ERCP pancreatitis: a metanalysis. Digestive diseases and sciences 20040301
Evaluation of the nitric oxide production in rat renal artery smooth muscle cells culture exposed to radiocontrast agents. Kidney international 20040201
Embolic effects of superabsorbent polymer microspheres in rabbit renal model: comparison with tris-acryl gelatin microspheres and polyvinyl alcohol. Radiation medicine 20040101
Nonionic low-osmolar contrast media have no impact on major adverse cardiac events in patients undergoing coronary stenting with appropriate antiplatelet therapy. Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions 20031201
No difference among modern contrast media's effect on neointimal proliferation and restenosis after coronary stenting in pigs. Investigative radiology 20031201
[Absence of nephro-protective effect of acetylcysteine in patients with chronic renal failure investigated by coronary angiography]. Archives des maladies du coeur et des vaisseaux 20031201
Glaucoma as a complication of superselective ophthalmic angiography. AJNR. American journal of neuroradiology 20030901
Inflammatory markers increase following exposure to radiographic contrast media. Acta radiologica (Stockholm, Sweden : 1987) 20030901
Involvement of proteinase-activated receptor-2 in mast cell tryptase-induced barrier dysfunction in bovine aortic endothelial cells. Cellular signalling 20030801
Delayed side effects induced by iodinated contrast media, especially those associated with iodixanol. European radiology 20030301
The ionic contrast medium ioxaglate interferes with thrombin-mediated feedback activation of factor V, factor VIII and platelets. Journal of thrombosis and haemostasis : JTH 20030201
In vivo comparative antithrombotic effects of ioxaglate and iohexol and interaction with the platelet antiaggregant clopidogrel. Investigative radiology 20030101
Differential effects of the iodinated contrast agents Ioxaglate, Iohexol and Iodixanol on thrombus formation and fibrinolysis. Thrombosis research 20030101
[Iodic allergic reaction with vasospasm occluded coronary during coronarography]. Annales de cardiologie et d'angeiologie 20021201
[Arteries of the hilum and parenchymal part of the ovary in reproductive age in microangiographic studies]. Ginekologia polska 20021201
[Arteries of the uterine cervix in reproductive age in microangiographic studies]. Ginekologia polska 20021201
A randomized prospective trial of ioxaglate 320 (Hexabrix) vs. iodixanol 320 (Visipaque) in patients undergoing percutaneous coronary intervention. Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions 20021101
Effects of gentamicin, lipopolysaccharide, and contrast media on immortalized proximal tubular cells. Renal failure 20021101
Effects of gentamicin, lipopolysaccharide, and contrast media on immortalized proximal tubular cells. Renal failure 20020901
Allergies correlated to adverse reactions induced by non-ionic monomeric and ionic dimeric contrast media for contrast enhanced CT examination. Nihon Hoshasen Gijutsu Gakkai zasshi 20020901
Carbazochrome attenuates pulmonary dysfunction induced by a radiographic contrast medium in rats. European journal of pharmacology 20020823
Effect of radiologic contrast media on cell volume regulatory mechanisms in human red blood cells. Academic radiology 20020801
Enhanced radio sensitivity with iodinated contrast agents using monochromatic synchrotron X-rays on human cancerous cells. Academic radiology 20020801
Effects of two dimeric iodinated contrast media on renal medullary blood perfusion and oxygenation in dogs. Investigative radiology 20020701
Do clinically relevant circulating concentrations of radiographic contrast agents inhibit platelet-dependent arterial thrombosis? Thrombosis research 20020301
Acute cardiac tolerance of current contrast media and the new taxane protaxel using iopromide as carrier during porcine coronary angiography and stenting. Investigative radiology 20020101
Systemic platelet effects of contrast media: implications for cardiologic research and clinical practice. American heart journal 20020101
Contrast media--a contradiction? European heart journal 20020101
Contrast media--why the confusion? European heart journal 20020101
Effects of ioxaglate on cultured microvascular endothelial cells: do all in vitro studies actually reflect clinical situations? Academic radiology 20020101
Monte Carlo dose simulation for intracoronary radiation therapy with a rhenium 188 solution-filled balloon with contrast medium. Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology 20020101
The increased histamine release in ischaemic heart disease patients undergoing coronaroangiography is not mediated by specific IgE. Allergy 20020101
Iodinated contrast medium-induced potassium release: the effect of mixing ratios. Radiation medicine 20020101
Effect of an ionic compared to a non-ionic X-ray contrast agent on platelets and coagulation during diagnostic cardiac catheterisation. Pathophysiology of haemostasis and thrombosis 20020101
Comparative tolerability of contrast media used for coronary interventions. Drug safety 20020101
Effects of radiographic contrast media on pulmonary vascular resistance of normoxic and chronically hypoxic pulmonary hypertensive rats. The British journal of radiology 20011201
An analysis of mechanisms underlying the antifibrinolytic properties of radiographic contrast agents. Journal of thrombosis and thrombolysis 20011201
Differential effects of radiocontrast agents on human umbilical vein endothelial cells: cytotoxicity and modulators of thrombogenicity. European journal of medical research 20011120
From COURT to HOMBURG: in search of the optimal contrast agent. European heart journal 20011101
Ionic or non-ionic contrast media in stent placement. European heart journal 20011101
Allergic reactions at repeat femoral angiography with ioxaglate. Acta radiologica (Stockholm, Sweden : 1987) 20011101
Comparison of the effects of radiographic contrast media on dehydration and filterability of red blood cells from donors homozygous for hemoglobin A or hemoglobin S. American journal of hematology 20011101
Ultrastructural evaluation of the effects of the contrast media on the rat kidney. Journal of submicroscopic cytology and pathology 20011001
[Severe reactions to iodinated contrast agents: is anaphylaxis responsible?]. Journal de radiologie 20010901
Comparison of effects of ioxaglate versus iomeprol on histamine and tryptase release in patients with ischemic cardiomyopathy. The American journal of cardiology 20010715
Comparative effects of ionic and nonionic iodinated low-osmolar contrast media on platelet function with the PFA-100 (platelet function analyzer). Investigative radiology 20010501
Effect of radiologic contrast media on cell volume regulation in rabbit proximal renal tubules. Academic radiology 20010501
An ionic contrast agent inhibits platelet-dependent thrombin generation and boosts the effect of abciximab. Thrombosis and haemostasis 20010501
Index matching to improve optical coherence tomography imaging through blood. Circulation 20010417
Early and late reactions after the use of iopamidol 340, ioxaglate 320, and iodixanol 320 in cardiac catheterization. American heart journal 20010401
Ionic or non-ionic contrast media during coronary intervention: does it make a difference? European heart journal 20010301
Acute and subacute stent occlusion; risk-reduction by ionic contrast media. European heart journal 20010301
Antithrombotic effects of ionic and non-ionic contrast media in nonhuman primates. Thrombosis and haemostasis 20010301
Morphologic degeneration of human microvascular endothelial cells induced by iodinated contrast media. Academic radiology 20010201
Serum pancreastatin levels predict response to hepatic artery chemoembolization and somatostatin analogue therapy in metastatic neuroendocrine tumors. Regulatory peptides 20010112
Surveillance of peripheral arterial bypass grafts with three-dimensional MR angiography: comparison with digital subtraction angiography. AJR. American journal of roentgenology 20010101
Delayed adverse reaction to sodium ioxaglic acid-meglumine. European journal of dermatology : EJD 20010101
Renal effects of cardiac angiography with different low-osmolar contrast media. Renal failure 20010101
Cutaneous drug reaction case reports: from the world literature. American journal of clinical dermatology 20010101
Thrombogenic potential of contrast media in an experimental model of laser-induced thrombosis. Thrombosis research 20001101
A comparison of the efficacy and safety of ioxaglate and iobitridol in renal angioplasty. Cardiovascular and interventional radiology 20000101
A randomized trial comparing the impact of a nonionic (Iomeprol) versus an ionic (Ioxaglate) low osmolar contrast medium on abrupt vessel closure and ischemic complications after coronary angioplasty. Journal of the American College of Cardiology 19990201
Percutaneous coronary angioscopic comparison of thrombus formation during percutaneous coronary angioplasty with ionic and nonionic low osmolality contrast media in unstable angina. The American journal of cardiology 19970915
Reports on contrast media reactions: analysis of data from reports to the U.S. Food and Drug Administration. Radiology 19970601
Risk of clot formation with ionic and nonionic contrast media in cerebral angiography. Tama Contrast Media Study Group. Academic radiology 19961101
Iohexol vs. ioxaglate in lower extremity angiography: a comparative randomized double-blind study in 80 patients. European journal of radiology 19960501
Electrolyte addition to nonionic contrast media. Cardiac effects during experimental coronary arteriography. Acta radiologica. Supplementum 19960101
Thrombogenicity of ionic and nonionic contrast media tested in a laser induced rat thrombosis model. Thrombosis research 19950201
Comparative effects of low- and high-osmolar contrast media on the renal function during early degenerative gentamicin-induced nephropathy in rats. American journal of nephrology 19950101
The effects of coronary injections of iodixanol, iopamidol, and ioxaglate on contractility and electrophysiology. Investigative radiology 19940601
Role of low-osmolality contrast media in thromboembolic complications: scanning electron microscopy study. Radiology 19920601
Risk of thrombosis during coronary angioplasty with low osmolality contrast media. The American journal of cardiology 19911015
Diagnostic quality and complications of hysterosalpingography: oil- versus water-soluble contrast media--a randomized prospective study. Radiology 19910401
Lack of inhibition of thrombin generation by nonionic contrast media. Thrombosis research 19910115
ECG changes during cerebral angiography; a comparison of low osmolality contrast media. European journal of radiology 19910101
A comparative study of the nephrotoxicity of iohexol, iopamidol and ioxaglate in peripheral angiography. Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes 19900601
Low-osmolality contrast media-induced ventricular fibrillation. Investigative radiology 19890401
[Comparative studies of diatrizoate, ioxaglate and iohexol as angiocardiographic contrast media]. Revista espanola de cardiologia 19890301
Comparison of low osmolality ionic (ioxaglate) versus nonionic (iopamidol) contrast media in cardiac angiography. The American journal of cardiology 19890215
Acute renal failure in rats. Interaction between contrast media and temporary renal arterial occlusion. Acta radiologica (Stockholm, Sweden : 1987) 19890101
Hemodynamic and electrophysiologic effects of low osmolar contrast agents during coronary angiography in the dog and the rabbit. Annales de radiologie 19890101
Pain in peripheral arteriography: an assessment of conventional versus ionic and non-ionic low-osmolality contrast agents. Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes 19880601
Contrast media-induced ventricular fibrillation. A comparison of Hypaque-76, Hexabrix, and Omnipaque. Investigative radiology 19880601
[Evaluation of the myocardial ischemic and arrhythmogenic risk of digitalized angiography by venous route. Apropos of a comparative trial of ioxaglate and iopamidol]. Journal de radiologie 19880301
Ventricular fibrillation during right coronary arteriography with ioxaglate, iohexol and iopamidol in dogs. Investigative radiology 19880301
Pain during angiography: a randomized double-blind trial comparing ioxaglate and diatrizoate. Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes 19870301
Incompatibility of Hexabrix and papaverine in peripheral arteriography. Radiology 19870301
Albuminuria following nephroangiography with low osmolar contrast media in the rat. Acta radiologica. Supplementum 19870101
Incidence of fibrillation with isotonic contrast media for intra-arterial coronary digital subtraction angiography. Diagnostic imaging in clinical medicine 19860101
Alterations in contrast medium-induced coronary reactive hyperemia after bepridil in patients with coronary artery disease. American heart journal 19850201
A double-blind clinical comparison of the electrophysiologic adverse effects of Hexabrix and Renografin-76. Investigative radiology 19840101
Combined actions of verapamil and contrast media on atrioventricular conduction. Influence of osmolality of the media. Investigative radiology 19840101
Thrombosis following phlebography with high-osmolar and low-osmolar contrast media. European journal of radiology 19830501
Comparative study: Endografine (diatrizoate), Vasurix polyvidone (acetrizoate), Dimer-X (iocarmate) and Hexabrix (ioxaglate) in hysterosalpingography. Diagnostic imaging 19820101
Hexabrix (ioxaglate), a new low osmolality contrast agent for lumbar epidural double-catheter venography. Neuroradiology 19800801
Proteinuria following nephroangiography. VII. Comparison between ionic monomeric, monoacidic dimeric and non-ionic contrast media in the dog. Acta radiologica. Supplementum 19800101

Related Products

© 2019 Angene International Limited. All rights Reserved.