83670-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83670-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,7 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83670-57:
(7*8)+(6*3)+(5*6)+(4*7)+(3*0)+(2*5)+(1*7)=149
149 % 10 = 9
So 83670-57-9 is a valid CAS Registry Number.
83670-57-9Relevant articles and documents
STEREOCHEMISTRY OF THE GLYOXYLATE N-SULFONYLIMINE ENE REACTION
Tshaen, David M.,Weinreb, Steven M.
, p. 3015 - 3018 (1982)
Ene reactions of sulfonylimine 1b with cyclohexene and trans-2-butene are highly stereoselective, affording products 4 and 10, respectively.
