1228552-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1228552-57-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,5,5 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1228552-57:
(9*1)+(8*2)+(7*2)+(6*8)+(5*5)+(4*5)+(3*2)+(2*5)+(1*7)=155
155 % 10 = 5
So 1228552-57-5 is a valid CAS Registry Number.