1256911-55-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1256911-55-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,9,1 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1256911-55:
(9*1)+(8*2)+(7*5)+(6*6)+(5*9)+(4*1)+(3*1)+(2*5)+(1*5)=163
163 % 10 = 3
So 1256911-55-3 is a valid CAS Registry Number.