23051-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23051-18-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,0,5 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 23051-18:
(7*2)+(6*3)+(5*0)+(4*5)+(3*1)+(2*1)+(1*8)=65
65 % 10 = 5
So 23051-18-5 is a valid CAS Registry Number.