251-35-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 251-35-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,5 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 251-35:
(5*2)+(4*5)+(3*1)+(2*3)+(1*5)=44
44 % 10 = 4
So 251-35-4 is a valid CAS Registry Number.