87692-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87692-31-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,9 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87692-31:
(7*8)+(6*7)+(5*6)+(4*9)+(3*2)+(2*3)+(1*1)=177
177 % 10 = 7
So 87692-31-7 is a valid CAS Registry Number.