18789-41-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18789-41-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,7,8 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18789-41:
(7*1)+(6*8)+(5*7)+(4*8)+(3*9)+(2*4)+(1*1)=158
158 % 10 = 8
So 18789-41-8 is a valid CAS Registry Number.