80777-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80777-17-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,7,7 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 80777-17:
(7*8)+(6*0)+(5*7)+(4*7)+(3*7)+(2*1)+(1*7)=149
149 % 10 = 9
So 80777-17-9 is a valid CAS Registry Number.