1213211-66-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1213211-66-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,3,2,1 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1213211-66:
(9*1)+(8*2)+(7*1)+(6*3)+(5*2)+(4*1)+(3*1)+(2*6)+(1*6)=85
85 % 10 = 5
So 1213211-66-5 is a valid CAS Registry Number.