12261-28-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12261-28-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,6 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 12261-28:
(7*1)+(6*2)+(5*2)+(4*6)+(3*1)+(2*2)+(1*8)=68
68 % 10 = 8
So 12261-28-8 is a valid CAS Registry Number.