42449-48-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42449-48-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,4 and 9 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 42449-48:
(7*4)+(6*2)+(5*4)+(4*4)+(3*9)+(2*4)+(1*8)=119
119 % 10 = 9
So 42449-48-9 is a valid CAS Registry Number.