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138584-34-6

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138584-34-6 Usage

Uses

A metabolite of Losartan (L470500).

Check Digit Verification of cas no

The CAS Registry Mumber 138584-34-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,8 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138584-34:
(8*1)+(7*3)+(6*8)+(5*5)+(4*8)+(3*4)+(2*3)+(1*4)=156
156 % 10 = 6
So 138584-34-6 is a valid CAS Registry Number.

138584-34-6SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name Losartan N1-Glucuronide

1.2 Other means of identification

Product number -
Other names (2S,3S,4S,5R,6R)-6-[5-[2-[4-[[2-butyl-4-chloro-5-(hydroxymethyl)imidazol-1-yl]methyl]phenyl]phenyl]tetrazol-1-yl]-3,4,5-trihydroxyoxane-2-carboxylic acid

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:138584-34-6 SDS

138584-34-6Upstream product

138584-34-6Downstream Products

138584-34-6Relevant articles and documents

The human UDP-glucuronosyltransferase UGT1A3 is highly selective towards N2 in the tetrazole ring of losartan, candesartan, and zolarsartan

Alonen, Anna,Finel, Moshe,Kostiainen, Risto

, p. 763 - 772 (2008/12/21)

Losartan, candesartan, and zolarsartan are AT1 receptor antagonists that inhibit the effect of angiotensin II. We have examined their glucuronidation by liver microsomes from several animals and by recombinant human UDP-glucuronosyltransferases (UGTs). Large differences in the production of different glucuronide regioisomers of the three sartans were observed among liver microsomes from human (HLM), rabbit, rat, pig, moose, and bovine. However, all the liver microsomes produced one or two N-glucuronides in which either N1 or N2 of the tetrazole ring were conjugated. O-Glucuronides were also detected, including acyl glucuronides of zolarsartan and candesartan. Examination of individual human UGTs of subfamilies 1A and 2B revealed that N-glucuronidation activity is widespread, along with variable regioselectivity with respect to the tetrazole nitrogens of these sartans. Interestingly, UGT1A3 exhibited a strong regioselectivity towards the N2 position of the tetrazole ring in all three sartans. Moreover, the tetrazole-N2 of zolarsartan was only conjugated by UGT1A3, whereas the tetrazole-N1 of this aglycone was accessible to other enzymes, including UGT1A5. Zolarsartan O-glucuronide was mainly produced by UGTs 1A10 and 2B7. UGT2B7, alongside UGT1A3, glucuronidated candesartan at the tetrazole-N2 position, whereas UGTs 1A7-1A10 mainly yielded candesartan O-glucuronide. In the case of losartan, no O-glucuronide was generated by any tested human enzyme. Nevertheless, UGTs 1A1, 1A3, 1A10, 2B7, and 2B17 glucuronidated losartan at the tetrazole-N2, while UGT1A10 also yielded the respective N1-glucuronide. Kinetic analyses revealed that the main contributors to losartan glucuronidation in HLM are UGT1A1 and UGT2B7. The results provide ample new data on substrate specificity in drug glucuronidation.

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