6672-39-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6672-39-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,7 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6672-39:
(6*6)+(5*6)+(4*7)+(3*2)+(2*3)+(1*9)=115
115 % 10 = 5
So 6672-39-5 is a valid CAS Registry Number.
6672-39-5Relevant articles and documents
An Organozinc Aid in Alkylation and Acylation of Lithium Enolates
Morita, Yasushi,Suzuki, Masaaki,Noyori, Ryoji
, p. 1785 - 1787 (2007/10/02)
The presence of dimethylzinc in the reaction of lithium enolates and electrophiles effectively suppresses undesired α-proton exchange reaction and enhances the efficiency of enolate alkylation and acylation.