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129990-72-3

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129990-72-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129990-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,9 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 129990-72:
(8*1)+(7*2)+(6*9)+(5*9)+(4*9)+(3*0)+(2*7)+(1*2)=173
173 % 10 = 3
So 129990-72-3 is a valid CAS Registry Number.

129990-72-3Relevant articles and documents

A novel synthesis of both enantiomers of α-hydroxycarboxylic esters and amides from (-)-1-chlorobutyl p-tolyl sulfoxide

Satoh,Onda,Yamakawa

, p. 3567 - 3570 (2007/10/02)

Addition of the carbanion of (-)-1-chlorbutyl p-tolyl sulfoxide to aldehydes gave two adducts, which were converted to both enantiomers of α-hydroxycarboxylic esters or amides in two steps in high overall yields.

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