230309-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 230309-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,0,3,0 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 230309-05:
(8*2)+(7*3)+(6*0)+(5*3)+(4*0)+(3*9)+(2*0)+(1*5)=84
84 % 10 = 4
So 230309-05-4 is a valid CAS Registry Number.