18722-93-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18722-93-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,7,2 and 2 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18722-93:
(7*1)+(6*8)+(5*7)+(4*2)+(3*2)+(2*9)+(1*3)=125
125 % 10 = 5
So 18722-93-5 is a valid CAS Registry Number.