137919-62-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137919-62-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,1 and 9 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 137919-62:
(8*1)+(7*3)+(6*7)+(5*9)+(4*1)+(3*9)+(2*6)+(1*2)=161
161 % 10 = 1
So 137919-62-1 is a valid CAS Registry Number.
137919-62-1Relevant articles and documents
Regioselective Acylations of Ketones to 1,3-Diketones via Metalated Dimethylhydrazones
Enders, Dieter,Pathak, Vijai, N.,Weuster, Peter
, p. 515 - 524 (2007/10/02)
Acyclic and cyclic unsymmetrical ketones 1 are regioselectively acylated via their corresponding metalated dimethylhydrazones 3 by using acid chlorides or anhydrides, arylnitriles, ethyl formate, carbon disulfide/methyl iodide, alkylchloroformates, dialky
