62421-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 62421-66-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,4,2 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 62421-66:
(7*6)+(6*2)+(5*4)+(4*2)+(3*1)+(2*6)+(1*6)=103
103 % 10 = 3
So 62421-66-3 is a valid CAS Registry Number.