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159974-42-2

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159974-42-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159974-42-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,9,7 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 159974-42:
(8*1)+(7*5)+(6*9)+(5*9)+(4*7)+(3*4)+(2*4)+(1*2)=192
192 % 10 = 2
So 159974-42-2 is a valid CAS Registry Number.

159974-42-2Downstream Products

159974-42-2Relevant articles and documents

Use of 2-Oxazolidinones As Latent Aziridine Equivalents. III. Preparation of N-Substituted Piperazines.

Poindexter, Graham S.,Bruce, Marc A.,LeBoulluec, Karen L.,Monkovic, Ivo

, p. 7331 - 7334 (2007/10/02)

A number of N-aryl and N-alkyl substituted piperazines 1 were prepared from variously substituted 2-oxazolidinone derivatives 3.The method involved treatment of 3 with HBr in glacial acetic acid followed by heating the resulting ring-opened salts 5 in alcoholic solvent.The piperazines 1a-1q were isolated by crystallization in yields ranging from 23-91percent.

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