31502-63-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31502-63-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,0 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 31502-63:
(7*3)+(6*1)+(5*5)+(4*0)+(3*2)+(2*6)+(1*3)=73
73 % 10 = 3
So 31502-63-3 is a valid CAS Registry Number.