1228237-11-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1228237-11-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,2,3 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1228237-11:
(9*1)+(8*2)+(7*2)+(6*8)+(5*2)+(4*3)+(3*7)+(2*1)+(1*1)=133
133 % 10 = 3
So 1228237-11-3 is a valid CAS Registry Number.