91213-98-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91213-98-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,1 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91213-98:
(7*9)+(6*1)+(5*2)+(4*1)+(3*3)+(2*9)+(1*8)=118
118 % 10 = 8
So 91213-98-8 is a valid CAS Registry Number.