57722-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57722-23-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,2 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 57722-23:
(7*5)+(6*7)+(5*7)+(4*2)+(3*2)+(2*2)+(1*3)=133
133 % 10 = 3
So 57722-23-3 is a valid CAS Registry Number.