1212897-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1212897-03-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,2,8,9 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1212897-03:
(9*1)+(8*2)+(7*1)+(6*2)+(5*8)+(4*9)+(3*7)+(2*0)+(1*3)=144
144 % 10 = 4
So 1212897-03-4 is a valid CAS Registry Number.