87559-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87559-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,5,5 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87559-81:
(7*8)+(6*7)+(5*5)+(4*5)+(3*9)+(2*8)+(1*1)=187
187 % 10 = 7
So 87559-81-7 is a valid CAS Registry Number.
87559-81-7Relevant articles and documents
A FACILE SYNTHESIS OF UNSYMMETRICAL THIOSULFONATES VIA SULFONYLATION OF MERCAPTANS
Ranasinghe, M. G.,Fuchs, P. L.
, p. 227 - 232 (2007/10/02)
The reaction of p-toluenesulfonyl bromide with mercaptans provides a convenient procedure for the synthesis of unsymmetrical thiolsulfonates.