23234-72-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23234-72-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,2,3 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 23234-72:
(7*2)+(6*3)+(5*2)+(4*3)+(3*4)+(2*7)+(1*2)=82
82 % 10 = 2
So 23234-72-2 is a valid CAS Registry Number.