1212138-24-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1212138-24-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,2,1,3 and 8 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1212138-24:
(9*1)+(8*2)+(7*1)+(6*2)+(5*1)+(4*3)+(3*8)+(2*2)+(1*4)=93
93 % 10 = 3
So 1212138-24-3 is a valid CAS Registry Number.