23445-48-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23445-48-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,4,4 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 23445-48:
(7*2)+(6*3)+(5*4)+(4*4)+(3*5)+(2*4)+(1*8)=99
99 % 10 = 9
So 23445-48-9 is a valid CAS Registry Number.