137213-69-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137213-69-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,1 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137213-69:
(8*1)+(7*3)+(6*7)+(5*2)+(4*1)+(3*3)+(2*6)+(1*9)=115
115 % 10 = 5
So 137213-69-5 is a valid CAS Registry Number.
137213-69-5Relevant articles and documents
Synthesis of nonracemic 2-vinyl-monoprotected 1,3-diols from the reactions of chiral allylstannanes with aldehydes
Gung,Peat
, p. 1797 - 1802 (2007/10/02)
A new approach for the synthesis of 2-vinyl monoprotected 1,3-diols has been developed. By employing different Lewis acid, either anti-anti or anti-syn stereoisomer can be selectively prepared.
