87117-12-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87117-12-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,1,1 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87117-12:
(7*8)+(6*7)+(5*1)+(4*1)+(3*7)+(2*1)+(1*2)=132
132 % 10 = 2
So 87117-12-2 is a valid CAS Registry Number.