23002-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23002-23-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,0,0 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 23002-23:
(7*2)+(6*3)+(5*0)+(4*0)+(3*2)+(2*2)+(1*3)=45
45 % 10 = 5
So 23002-23-5 is a valid CAS Registry Number.