57777-82-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57777-82-9 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, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57777-82:
(7*5)+(6*7)+(5*7)+(4*7)+(3*7)+(2*8)+(1*2)=179
179 % 10 = 9
So 57777-82-9 is a valid CAS Registry Number.