74662-53-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74662-53-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,6,6 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74662-53:
(7*7)+(6*4)+(5*6)+(4*6)+(3*2)+(2*5)+(1*3)=146
146 % 10 = 6
So 74662-53-6 is a valid CAS Registry Number.