646-16-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 646-16-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 646-16:
(5*6)+(4*4)+(3*6)+(2*1)+(1*6)=72
72 % 10 = 2
So 646-16-2 is a valid CAS Registry Number.
646-16-2Relevant articles and documents
Reaction of non stabilised phosphonium ylides with lactones
Brunel, Yves,Rousseau, Gerard
, p. 3853 - 3856 (1996)
Reaction of medium ring lactones with methylene and alkylidene triphenylphosphoranes in dimethyl sulfoxide led to unsaturated alcohols.