409108-52-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 409108-52-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,9,1,0 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 409108-52:
(8*4)+(7*0)+(6*9)+(5*1)+(4*0)+(3*8)+(2*5)+(1*2)=127
127 % 10 = 7
So 409108-52-7 is a valid CAS Registry Number.
409108-52-7Relevant articles and documents
A simple method to prepare unsymmetrical di- tri- and tetrasulfides
Derbesy, Gerard,Harpp, David N.
, p. 5381 - 5384 (1994)
Unsymmetrical di- tri- and tetrasulfides can be prepared in a one-pot reaction using SO2Cl2 SCl2 and S2Cl2 respectively to permit coupling of the appropriate thiols.