82778-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82778-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,7,7 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 82778-57:
(7*8)+(6*2)+(5*7)+(4*7)+(3*8)+(2*5)+(1*7)=172
172 % 10 = 2
So 82778-57-2 is a valid CAS Registry Number.