871091-13-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871091-13-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,0,9 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 871091-13:
(8*8)+(7*7)+(6*1)+(5*0)+(4*9)+(3*1)+(2*1)+(1*3)=163
163 % 10 = 3
So 871091-13-3 is a valid CAS Registry Number.