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Ethyl 4-(1-methyl-5-nitro-1H-benzo[d]imidazol-2-yl)butanoate is a complex organic compound with the chemical formula C14H18N2O4. It is a derivative of benzimidazole, featuring a methyl group at the 1-position and a nitro group at the 5-position. The compound is characterized by its ester functional group, which is formed by the reaction of the carboxylic acid group with ethanol. This results in an ethyl ester attached to a butanoate chain. The compound is known for its potential applications in pharmaceuticals and as a chemical intermediate, particularly in the synthesis of certain drugs and agrochemicals. Its structure and properties make it a versatile building block in organic synthesis, though it is important to note that the specific uses and safety considerations should be guided by detailed toxicological and environmental studies.

3543-72-4

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3543-72-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3543-72-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,4 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3543-72:
(6*3)+(5*5)+(4*4)+(3*3)+(2*7)+(1*2)=84
84 % 10 = 4
So 3543-72-4 is a valid CAS Registry Number.
InChI:InChI=1/C14H17N3O4/c1-3-21-14(18)6-4-5-13-15-11-9-10(17(19)20)7-8-12(11)16(13)2/h7-9H,3-6H2,1-2H3

3543-72-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name ethyl 4-(1-methyl-5-nitrobenzimidazol-2-yl)butanoate

1.2 Other means of identification

Product number -
Other names 1-Methyl-5-nitro-1H-benzimidazole-2-butanoic acid ethyl ester

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:3543-72-4 SDS

3543-72-4Relevant academic research and scientific papers

Process for preparation of Bendamustine

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, (2014/02/15)

The present invention relates to a method for preparation of alkyl 4-[5-[bis(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazol-2-yl]butanoate (7) from 2-fluoro-5-nitroaniline, comprising the steps of: a) conversion of 2-fluoro-5-nitroaniline to 5-(2-fluoro-5-nitroanilino)-5-oxopentanoic acid (1) using glutaric anhydride, conversion of compound (1) to methylammonium 5-[2-(methylamino)-5-nitroanilino]-5-oxopentanoate (2) using methylamine; conversion of compound (2) to 5-[2-(methylamino)-5-nitroanilino]-5-oxopentanoic acid (3) and condensation of compound (3) to 4-(1-methyl-5-nitro-1H-benzimidazol-2-yl)butanoic acid (4), b) esterification of the product (4) of step a) to alkyl 4-(1-methyl-5-nitro1H-benzimidazol-2-yl)butanoate (5), c) reduction of the product of step b) to alkyl 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate (6), and d) conversion of the product of step c) to alkyl 4-[5-[bis(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazol-2-yl]butanoate (7).

PROCESS FOR THE PREPARATION OF BENDAMUSTINE

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Paragraph 0101; 0102, (2014/02/16)

The present invention relates to a method for preparation of alkyl 4-[5-[bis(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazol-2-yl]butanoate (7) from 2-fluoro-5-nitroaniline, comprising the steps of: (a) conversion of 2-fluoro-5-nitroaniline to 5-(2-fluoro-5-nitroanilino)-5-oxopentanoic acid (1) using glutaric anhydride, conversion of compound (1) to methylammonium 5-[2-(methylamino)-5-nitroanilino]-5-oxopentanoate (2) using methylamine; conversion of compound (2) to 5-[2-(methylamino)-5-nitroanilino]-5-oxopentanoic acid (3) and condensation of compound (3) to 4-(1-methyl-5-nitro-1H-benzimidazol-2-yl)butanoic acid (4); (b) esterification of the product (4) of step a) to alkyl 4-(1-methyl-5-nitro1H-benzimidazol-2-yl)butanoate (5); (c) reduction of the product of step b) to alkyl 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate (6), and (d) conversion of the product of step c) to alkyl 4-[5-[bis(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazol-2-yl]butanoate (7)

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