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140903-15-7

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140903-15-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140903-15-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,9,0 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 140903-15:
(8*1)+(7*4)+(6*0)+(5*9)+(4*0)+(3*3)+(2*1)+(1*5)=97
97 % 10 = 7
So 140903-15-7 is a valid CAS Registry Number.

140903-15-7Relevant articles and documents

Dithio and Thiono Esters, 53. Synthesis of N-Protected α-Amino Dithioesters from α-Amino Nitriles and α-Amino Acids

Kohrt, Arne,Hartke, Klaus

, p. 595 - 606 (2007/10/02)

The α-Amino nitriles 1 and 5 have been transformed into the thiolimido ester hydrochlorides 2 and 6 and sulfhydrolyzed to give the N-protected α-amino dithioesters 3 and 7.The α-amino dithioesters 10 were obtained from 1 via the thioamides 8 and their S-a

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