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Catalog No. T20545   CAS 1477-19-6
Synonyms: Benzaronum, Benzarona, Vasoc, Venagil

Benzarone is a potent inhibitor of human uric acid transporter 1 (URAT1, IC50 = 2.8 μM in oocyte). Benzarone lowers the level of uric acid serum.

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Benzarone, CAS 1477-19-6
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Purity 98%
Biological Description
Chemical Properties
Storage & Solubility Information
Description Benzarone is a potent inhibitor of human uric acid transporter 1 (URAT1, IC50 = 2.8 μM in oocyte). Benzarone lowers the level of uric acid serum.
In vitro Studies on the action of benzarone on the metabolism of cultured arterial smooth muscle cells and arterial tissue had the following results: 1. On incubation of calf arterial tissue in the presence of 0.03--0.1 mmol/l benzarone (8--26 micrograms/ml medium) the metabolic transformation of [14C]-glucose to [14C]-lactate and 14CO2 and the incorporation of 14C radioactivity into the total lipids is not significantly altered as compared with control values. In cultured human arterial smooth muscle cells 0.03 mmol/l benzarone stimulates the incorporation of [14C]-acetate and [3H]-palmitate into the cellular lipids while the receptor mediated uptake of homologous low-density lipoproteins (LDL) by the cells and their release are not influenced. 2. In concentrations greater than 0.2 mmol/l benzarone the glucose utilisation of arterial tissue is enhanced, while the labelling of lipids, in particular the labelling of the triglyceride fraction, is depressed. Under the same conditions the protein biosynthesis and the incorporation of [14C]-acetate and [3H]-palmitate into the total lipids of cultured arterial smooth muscle cells are decreased[2].
In vivo Rats of BD X strain and SHR/NIH Montreal Ingelheim strain (genetic hypertension) received a diet containing 3.9% cholesterol or 3.7% cholesterol plus 0.6% benzarone, respectively, and libitum for 5 or 9 months. The following chemical and ultrastructural results were obtained. 1. The cholesterol-benzarone diet causes a body weight reduction of 10%, a relative increase of serum HDL and a corresponding decrease of serum LDL and VLDL, as compared with the effects of the cholesterol diet. No differences of total serum cholesterol and serum triglycerides between the two groups were observed. 2. The aorta of cholesterol fed animals shows a slight but statistically not significant increase of total cholesterol content. 3. No differences in the composition of connective tissue components (collagen, elastin, uronic acid content) between the cholesterol fed animals and a control group on normal diet could be detected. 4. Electron micrographs of several vessel wall areas from cholesterol fed hypertensive animals revealed fibrosis, necrosis of media muscle cells and an increase of matrix vesicles. Severe damages were found in coronary arteries and in the caudal arteries. 5. Cholesterol feeding of hypertensive rats increases the cholesterol content of liver 10fold and the triglycerides content 3fold as compared with liver lipids of control rats. Benzarone application to cholesterol fed rats effects a statistically significant decrease of liver cholesterol and triglycerides[3].
Synonyms Benzaronum, Benzarona, Vasoc, Venagil
Molecular Weight 266.3
Formula C17H14O3
CAS No. 1477-19-6


Powder: -20°C for 3 years

In solvent: -80°C for 2 years

Solubility Information

DMSO: Soluble

( < 1 mg/ml refers to the product slightly soluble or insoluble )


References and Literature
1. Kaufmann P, Török M, Hänni A, Roberts P, Gasser R, Krähenbühl S. Mechanisms of benzarone and benzbromarone-induced hepatic toxicity. Hepatology. 2005 Apr;41(4):925-35. PubMed PMID: 15799034. 2. de Vries JX, Walter-Sack I, van de Loo A, Kocher J. Determination of benzarone in human plasma and urine by high-performance liquid chromatography and gas chromatography-mass spectrometry. Identification of the conjugates. J Chromatogr. 1986 Oct 31;382:167-74. PubMed PMID: 3782383. 3. Knehr HE, Betz E. [Effect of benzarone on the oxygen consumption and the mechanical activity of vascular smooth muscle]. Arzneimittelforschung. 1983;33(2):211-4. German. PubMed PMID: 6682659. 4. Wood SG, John BA, Chasseaud LF, Bonn R, Grote H, Sandrock K, Darragh A, Lambe RF. Metabolic fate of the thrombolytic agent benzarone in man: comparison with the rat and dog. Xenobiotica. 1987 Jul;17(7):881-96. PubMed PMID: 3660858.

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