4004-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4004-65-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,0 and 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4004-65:
(6*4)+(5*0)+(4*0)+(3*4)+(2*6)+(1*5)=53
53 % 10 = 3
So 4004-65-3 is a valid CAS Registry Number.