1256288-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1256288-55-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,2,8 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1256288-55:
(9*1)+(8*2)+(7*5)+(6*6)+(5*2)+(4*8)+(3*8)+(2*5)+(1*5)=177
177 % 10 = 7
So 1256288-55-7 is a valid CAS Registry Number.