57722-17-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57722-17-5 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, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57722-17:
(7*5)+(6*7)+(5*7)+(4*2)+(3*2)+(2*1)+(1*7)=135
135 % 10 = 5
So 57722-17-5 is a valid CAS Registry Number.