442647-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 442647-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,6,4 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 442647-05:
(8*4)+(7*4)+(6*2)+(5*6)+(4*4)+(3*7)+(2*0)+(1*5)=144
144 % 10 = 4
So 442647-05-4 is a valid CAS Registry Number.