1212953-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1212953-31-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,2,9,5 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1212953-31:
(9*1)+(8*2)+(7*1)+(6*2)+(5*9)+(4*5)+(3*3)+(2*3)+(1*1)=125
125 % 10 = 5
So 1212953-31-5 is a valid CAS Registry Number.