74149-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74149-44-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,4 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74149-44:
(7*7)+(6*4)+(5*1)+(4*4)+(3*9)+(2*4)+(1*4)=133
133 % 10 = 3
So 74149-44-3 is a valid CAS Registry Number.