57800-80-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57800-80-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,8,0 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57800-80:
(7*5)+(6*7)+(5*8)+(4*0)+(3*0)+(2*8)+(1*0)=133
133 % 10 = 3
So 57800-80-3 is a valid CAS Registry Number.