1228551-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1228551-81-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,5,5 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1228551-81:
(9*1)+(8*2)+(7*2)+(6*8)+(5*5)+(4*5)+(3*1)+(2*8)+(1*1)=152
152 % 10 = 2
So 1228551-81-2 is a valid CAS Registry Number.