226699-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 226699-18-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,6,6,9 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 226699-18:
(8*2)+(7*2)+(6*6)+(5*6)+(4*9)+(3*9)+(2*1)+(1*8)=169
169 % 10 = 9
So 226699-18-9 is a valid CAS Registry Number.