81391-19-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81391-19-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,9 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81391-19:
(7*8)+(6*1)+(5*3)+(4*9)+(3*1)+(2*1)+(1*9)=127
127 % 10 = 7
So 81391-19-7 is a valid CAS Registry Number.
81391-19-7Relevant articles and documents
lithium: A New Reagent for Carbonyl Reductive Vinylation
Wilson, Stephen R.,Shedrinsky, Alexander
, p. 1983 - 1984 (1982)
The direct transformation of a carbonyl compound into a vinyl compound (i.e., cyclohexanone vinylcyclohexane) is now possible with use of the new reagent described in this paper: lithium, followed by protodesilylation.