17828-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17828-77-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,2 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 17828-77:
(7*1)+(6*7)+(5*8)+(4*2)+(3*8)+(2*7)+(1*7)=142
142 % 10 = 2
So 17828-77-2 is a valid CAS Registry Number.