1212389-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1212389-04-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,2,3,8 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1212389-04:
(9*1)+(8*2)+(7*1)+(6*2)+(5*3)+(4*8)+(3*9)+(2*0)+(1*4)=122
122 % 10 = 2
So 1212389-04-2 is a valid CAS Registry Number.