872190-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 872190-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,2,1,9 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 872190-91:
(8*8)+(7*7)+(6*2)+(5*1)+(4*9)+(3*0)+(2*9)+(1*1)=185
185 % 10 = 5
So 872190-91-5 is a valid CAS Registry Number.