4023-95-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4023-95-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,2 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4023-95:
(6*4)+(5*0)+(4*2)+(3*3)+(2*9)+(1*5)=64
64 % 10 = 4
So 4023-95-4 is a valid CAS Registry Number.