18128-79-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18128-79-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,1,2 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 18128-79:
(7*1)+(6*8)+(5*1)+(4*2)+(3*8)+(2*7)+(1*9)=115
115 % 10 = 5
So 18128-79-5 is a valid CAS Registry Number.