74403-67-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74403-67-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,0 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74403-67:
(7*7)+(6*4)+(5*4)+(4*0)+(3*3)+(2*6)+(1*7)=121
121 % 10 = 1
So 74403-67-1 is a valid CAS Registry Number.