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1239919-83-5

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1239919-83-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1239919-83-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,9,1 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1239919-83:
(9*1)+(8*2)+(7*3)+(6*9)+(5*9)+(4*1)+(3*9)+(2*8)+(1*3)=195
195 % 10 = 5
So 1239919-83-5 is a valid CAS Registry Number.

1239919-83-5Relevant articles and documents

Stereocontrol in radical cyclization: Change in rate-determining step

Hakim, Siddiki S. M. A.,Sugimura, Takashi

supporting information; experimental part, p. 3626 - 3629 (2010/10/04)

Intramolecular cyclization of an α-carbon radical of ester carrying a chiral 2,4-pentanediol tether shows low stereoselectivity when the radical carbon has an alkyl substituent, while the selectivity becomes high to give a single stereoisomer (>99% pure)

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