428-93-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 428-93-3 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 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 428-93:
(5*4)+(4*2)+(3*8)+(2*9)+(1*3)=73
73 % 10 = 3
So 428-93-3 is a valid CAS Registry Number.