23511-00-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23511-00-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,5,1 and 1 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 23511-00:
(7*2)+(6*3)+(5*5)+(4*1)+(3*1)+(2*0)+(1*0)=64
64 % 10 = 4
So 23511-00-4 is a valid CAS Registry Number.