7257-67-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7257-67-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,5 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 7257-67:
(6*7)+(5*2)+(4*5)+(3*7)+(2*6)+(1*7)=112
112 % 10 = 2
So 7257-67-2 is a valid CAS Registry Number.
7257-67-2Relevant articles and documents
THIOSULFONATE PREPARATION BY THE THIOSULFINATE/SULFINIC ACID REACTION
Clarke, Victor,Cole, Edward R.
, p. 171 - 174 (2007/10/02)
The reaction of thiosulfinates with amine salts of aryl sulfinic acids has been examined for the preparation of thiosulfonates, particularly unsymmetrical derivatives.Key words: Thiosulfinate; thiosulfonate; sulfinic acid amine salts.