655-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 655-75-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,5 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 655-75:
(5*6)+(4*5)+(3*5)+(2*7)+(1*5)=84
84 % 10 = 4
So 655-75-4 is a valid CAS Registry Number.