1221231-36-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1221231-36-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,2,3 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1221231-36:
(9*1)+(8*2)+(7*2)+(6*1)+(5*2)+(4*3)+(3*1)+(2*3)+(1*6)=82
82 % 10 = 2
So 1221231-36-2 is a valid CAS Registry Number.