256393-12-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256393-12-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,3,9 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 256393-12:
(8*2)+(7*5)+(6*6)+(5*3)+(4*9)+(3*3)+(2*1)+(1*2)=151
151 % 10 = 1
So 256393-12-1 is a valid CAS Registry Number.