871901-97-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871901-97-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,9,0 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 871901-97:
(8*8)+(7*7)+(6*1)+(5*9)+(4*0)+(3*1)+(2*9)+(1*7)=192
192 % 10 = 2
So 871901-97-2 is a valid CAS Registry Number.