3642-03-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3642-03-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,6,4 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3642-03:
(6*3)+(5*6)+(4*4)+(3*2)+(2*0)+(1*3)=73
73 % 10 = 3
So 3642-03-3 is a valid CAS Registry Number.