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191542-42-4

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191542-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191542-42-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,5,4 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 191542-42:
(8*1)+(7*9)+(6*1)+(5*5)+(4*4)+(3*2)+(2*4)+(1*2)=134
134 % 10 = 4
So 191542-42-4 is a valid CAS Registry Number.

191542-42-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-[5-(phenylselanyl)pentyl]-2-tosyl-1H-imidazole

1.2 Other means of identification

Product number -
Other names -

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:191542-42-4 SDS

191542-42-4Relevant articles and documents

Radical cyclisation onto imidazoles and benzimidazoles

Aldabbagh, Fawaz,Bowman, W. Russell

, p. 4109 - 4122 (2007/10/03)

New synthetic methodology has been developed for the synthesis of [1,2- a]fused imidazoles and benzimidazoles using intramolecular homolytic aromatic substitution. In the intramolecular substitution, N-(ω-alkyl) radicals are generated using Bu3SnH from N-(ω-phenylselanyl)alkyl side chains. Phenylselanyl groups are used as radical leaving groups to avoid problems in the N-alkylation of imidazoles and benzimidazoles. Arylsulfones for imidazoles, and phenylsulfides for benzimidazoles, are used at the leaving groups in the homolytic substitutions.

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