91200-12-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91200-12-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,0 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91200-12:
(7*9)+(6*1)+(5*2)+(4*0)+(3*0)+(2*1)+(1*2)=83
83 % 10 = 3
So 91200-12-3 is a valid CAS Registry Number.