223733-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223733-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,7,3 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 223733-71:
(8*2)+(7*2)+(6*3)+(5*7)+(4*3)+(3*3)+(2*7)+(1*1)=119
119 % 10 = 9
So 223733-71-9 is a valid CAS Registry Number.