444665-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 444665-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,6,6 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 444665-80:
(8*4)+(7*4)+(6*4)+(5*6)+(4*6)+(3*5)+(2*8)+(1*0)=169
169 % 10 = 9
So 444665-80-9 is a valid CAS Registry Number.