23966-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23966-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,9,6 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 23966-72:
(7*2)+(6*3)+(5*9)+(4*6)+(3*6)+(2*7)+(1*2)=135
135 % 10 = 5
So 23966-72-5 is a valid CAS Registry Number.