442567-84-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 442567-84-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,5,6 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 442567-84:
(8*4)+(7*4)+(6*2)+(5*5)+(4*6)+(3*7)+(2*8)+(1*4)=162
162 % 10 = 2
So 442567-84-2 is a valid CAS Registry Number.