6131-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6131-65-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,1,3 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 6131-65:
(6*6)+(5*1)+(4*3)+(3*1)+(2*6)+(1*5)=73
73 % 10 = 3
So 6131-65-3 is a valid CAS Registry Number.