81355-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81355-13-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,5 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81355-13:
(7*8)+(6*1)+(5*3)+(4*5)+(3*5)+(2*1)+(1*3)=117
117 % 10 = 7
So 81355-13-7 is a valid CAS Registry Number.
81355-13-7Relevant articles and documents
CONVERSION OF OLEFINS INTO γ-BUTYROLACTONES
Brown, Stephen P.,Bal, Balkrishna S.,Pinnick, Harold W.
, p. 4891 - 4894 (1981)
Cyclopropyl esters derived from olefins undergo ring opening with iodotrimethylsilane and, after base treatment, γ-butyrolactones are obtained.
