196491-83-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 196491-83-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,6,4,9 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 196491-83:
(8*1)+(7*9)+(6*6)+(5*4)+(4*9)+(3*1)+(2*8)+(1*3)=185
185 % 10 = 5
So 196491-83-5 is a valid CAS Registry Number.
196491-83-5Relevant articles and documents
A silicon controlled total synthesis of the antifungal agent (+)-preussin
Verma, Rekha,Ghosh, Sunil K.
, p. 1601 - 1602 (1997)
A stereoselective total synthesis of (+)-preussin has been achieved from a meso anhydride featuring a dimethyl(phenyl)silyl group as a masked hydroxy group which also restricts elimination reactions, stereodirects hydrogenation and ester enolate alkylation, and facilitates Curtius reaction.
