75403-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75403-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,0 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 75403-97:
(7*7)+(6*5)+(5*4)+(4*0)+(3*3)+(2*9)+(1*7)=133
133 % 10 = 3
So 75403-97-3 is a valid CAS Registry Number.