4905-80-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4905-80-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,0 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4905-80:
(6*4)+(5*9)+(4*0)+(3*5)+(2*8)+(1*0)=100
100 % 10 = 0
So 4905-80-0 is a valid CAS Registry Number.