5003-02-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5003-02-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,0 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 5003-02:
(6*5)+(5*0)+(4*0)+(3*3)+(2*0)+(1*2)=41
41 % 10 = 1
So 5003-02-1 is a valid CAS Registry Number.