425-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 425-40-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,2 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 425-40:
(5*4)+(4*2)+(3*5)+(2*4)+(1*0)=51
51 % 10 = 1
So 425-40-1 is a valid CAS Registry Number.