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142037-08-9

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142037-08-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142037-08-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,0,3 and 7 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 142037-08:
(8*1)+(7*4)+(6*2)+(5*0)+(4*3)+(3*7)+(2*0)+(1*8)=89
89 % 10 = 9
So 142037-08-9 is a valid CAS Registry Number.

142037-08-9Relevant articles and documents

Enzyme Assisted Preparation of Enantiomerically Pure β-Adrenergic Blockers III. Optically Active Chlorohydrin Derivatives and Their Conversion

Ader, Ulrich,Schneider, Manfred P.

, p. 521 - 524 (2007/10/02)

Optical active chlorohydrin derivatives 2a-m and 3a-m of both enantiomeric series were prepared via both enzymatic hydrolyses and acyltransfer reactions catalysed by a highly selective lipase from Pseudomonas sp..The resulting building blocks were further transformed into the corresponding β-blockers of high enantiomeric purity.

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