223493-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223493-40-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,4,9 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 223493-40:
(8*2)+(7*2)+(6*3)+(5*4)+(4*9)+(3*3)+(2*4)+(1*0)=121
121 % 10 = 1
So 223493-40-1 is a valid CAS Registry Number.