57777-35-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57777-35-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,7 and 7 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 57777-35:
(7*5)+(6*7)+(5*7)+(4*7)+(3*7)+(2*3)+(1*5)=172
172 % 10 = 2
So 57777-35-2 is a valid CAS Registry Number.