22261-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22261-18-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,2,6 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 22261-18:
(7*2)+(6*2)+(5*2)+(4*6)+(3*1)+(2*1)+(1*8)=73
73 % 10 = 3
So 22261-18-3 is a valid CAS Registry Number.