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526-08-9

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526-08-9 Usage

Description

CYP2C9 is a major cytochrome P450 enzyme that is involved in the metabolic clearance of various therapeutic agents. Disruption of this enzyme’s activity can lead to adverse drug reactions. Sulfaphenazole is an inhibitor of CYP2C9 (Ki = 0.3 μM) that demonstrates at least 100-fold selectivity over other CYP450 isoforms (Kis = 63 and 29 μM for CYP2C8 and CYP2C18, respectively, and no activity at CYP1A1, CYP1A2, CYP3A4, CYP2C19). At 10 μM, sulfaphenazole has been shown to inhibit endothelium-derived hyperpolarizing factor synthase, a CYP450 isozyme in the porcine coronary artery homologous to CYP2C8/9 that generates reactive oxygen species in coronary endothelial cells and modulates vascular tone and homeostasis.

Chemical Properties

White to off-white powder

Uses

Different sources of media describe the Uses of 526-08-9 differently. You can refer to the following data:
1. Sulfaphenazole is used as an inhibitor for mammalian CYP2C9, an enzyme of the cytochrome P450 family allowing for pharmacological application. Sulfaphenazole can help protect against ischemia-reperfus ion, and resulting tissue damage by inhibition of CYP2C9.
2. Sulfaphenazole has been used as a positive control to inhibit cytochrome P450 2C9 (cyp2c9) to quantify Rhodiola rosea inhibition. It has also been used as cytochrome P450 2C9 (cyp2c9) inhibitor in endothelial cells and microsomal preparations.
3. Sulfaphenazole is used as an inhibitor for mammalian CYP2C9, an enzyme of the cytochrome P450 family allowing for pharmacological application.Sulfaphenazole can help protect against ischemia-reperfusion, and resulting tissue damage by inhibition of CYP2C9.

Definition

ChEBI: A sulfonamide that is sulfanilamide in which the sulfonamide nitrogen is substituted by a 1-phenyl-1H-pyrazol-5-yl group. It is a selective inhibitor of cytochrome P450 (CYP) 2C9 isozyme, and antibacterial agent.

Biochem/physiol Actions

Antibacterial. Specific inhibitor of CYP2C9. Blocks pro-inflammatory and atherogenic effects of linoleic acid (increase in oxidative stress and activation of AP-1) mediated by CYP2C9. Specific inhibitor of CYP2C9. Blocks pro-inflammatory and atherogenic effects of linoleic acid (increase in oxidative stress and activation of AP-1) mediated by CYP2C9. Inhibits bradykinin-induced tPA release.

in vitro

in yeast expressed human cytochromes p450 of the 1a, 3a, and 2c subfamilies, sulfaphenazole acts as a strong and competitive inhibitor of cyp 2c9 with the ki value of 0.3 ± 0.1 μm. the ki values of sulfaphenazole for cyp 2c8 and 2c18 were 63 and 29 μm, respectively. sulfaphenazole failed to inhibit cyp 1a1, 1a2, 3a4, and 2c19 [1].

in vivo

in diabetic male mice (db/db strain), daily intraperitoneal injections of either the cyp 2c inhibitor sulfaphenazole (5.13 mg/kg) for 8 weeks, sulfaphenazole restored endothelium-mediated relaxation in db/db mice. sulfaphenazole reduced oxidative stress, increased no bioavailability and restored endothelial function in db/db mice [3].

Purification Methods

Crystallise it from EtOH or aqueous EtOH. [Schmidt & Druey Helv Chim Acta 41 309 1958, Beilstein 25 III/IV 2029.]

references

[1] mancy a, dijols s, poli s, et al. interaction of sulfaphenazole derivatives with human liver cytochromes p450 2c: molecular origin of the specific inhibitory effects of sulfaphenazole on cyp 2c9 and consequences for the substrate binding site topology of cyp 2c9[j]. biochemistry, 1996, 35(50): 16205-16212.[2] rettie a e, jones j p. clinical and toxicological relevance of cyp2c9: drug-drug interactions and pharmacogenetics[j]. annu. rev. pharmacol. toxicol., 2005, 45: 477-494.[3] elmi s, sallam n a, rahman m m, et al. sulfaphenazole treatment restores endothelium-dependent vasodilation in diabetic mice[j]. vascular pharmacology, 2008, 48(1): 1-8.

Check Digit Verification of cas no

The CAS Registry Mumber 526-08-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 6 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 526-08:
(5*5)+(4*2)+(3*6)+(2*0)+(1*8)=59
59 % 10 = 9
So 526-08-9 is a valid CAS Registry Number.
InChI:InChI=1/C15H14N4O2S/c16-12-6-8-14(9-7-12)22(20,21)18-15-10-11-17-19(15)13-4-2-1-3-5-13/h1-11,18H,16H2

526-08-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name sulfaphenazole

1.2 Other means of identification

Product number -
Other names Benzenesulfonamide, 4-amino-N-(1-phenyl-1H-pyrazol-5-yl)-

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:526-08-9 SDS

526-08-9Relevant articles and documents

The optimization and characterization of functionalized sulfonamides derived from sulfaphenazole against Mycobacterium tuberculosis with reduced CYP 2C9 inhibition

Chen, Hui,Wang, Bin,Li, Peng,Yan, Hong,Li, Gang,Huang, Haihong,Lu, Yu

, (2021/03/26)

In this study, a series of sulfonamide compounds was designed and synthesized through the systematic optimization of the antibacterial agent sulfaphenazole for the treatment of Mycobacterium tuberculosis (M. tuberculosis). Preliminary results indicate that the 4-aminobenzenesulfonamide moiety plays a key role in maintaining antimycobacterial activity. Compounds 10c, 10d, 10f and 10i through the optimization on phenyl ring at the R2 site on the pyrazole displayed promising antimycobacterial activity paired with low cytotoxicity. In particular, compound 10d displayed good activity (MIC = 5.69 μg/mL) with low inhibition of CYP 2C9 (IC50 > 10 μM), consequently low potential risk of drug-drug interaction. These promising results provide new insight into the combination regimen using sulfonamide as one component for the treatment of M. tuberculosis.

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