74103-64-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74103-64-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,0 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74103-64:
(7*7)+(6*4)+(5*1)+(4*0)+(3*3)+(2*6)+(1*4)=103
103 % 10 = 3
So 74103-64-3 is a valid CAS Registry Number.