77214-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77214-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,1 and 4 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77214-23:
(7*7)+(6*7)+(5*2)+(4*1)+(3*4)+(2*2)+(1*3)=124
124 % 10 = 4
So 77214-23-4 is a valid CAS Registry Number.
77214-23-4Relevant articles and documents
A FACILE SILYLATION OF CARBOXYLIC ACIDS WITH HEXAMETHYLDISILOXANE
Matsumoto, Hideyuki,Hoshino, Yoshikazu,Nakabayashi, Jiro,Nakano, Taichi,Nagai, Yoichiro
, p. 1475 - 1478 (1980)
It was found that, in the presence of a catalytic amount of sulfuric acid, hexamethyldisiloxane silylates carboxylic acids to give trimethylsilyl carboxylates in good yields.