73774-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73774-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,7,7 and 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 73774-68:
(7*7)+(6*3)+(5*7)+(4*7)+(3*4)+(2*6)+(1*8)=162
162 % 10 = 2
So 73774-68-2 is a valid CAS Registry Number.
73774-68-2Relevant articles and documents
REACTION OF DITHIOCARBOXYLIC ESTERS WITH DIMETHYL ACETYLENEDICARBOXYLATE
Drozd, V. N.,Popova, O. A.
, p. 1741 - 1747 (2007/10/02)
It was shown that substituted allyl, benzyl, and propargyl esters of dithiocarboxylic acids react with dimethyl acetylenedicarboxylate by a cycloaddition mechanism with a simultaneous - or -sigmatropic shift to form 2,2-substituted 4,5-dimethoxycarbonyl-1,3-dithioles.