444020-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 444020-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,0,2 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 444020-71:
(8*4)+(7*4)+(6*4)+(5*0)+(4*2)+(3*0)+(2*7)+(1*1)=107
107 % 10 = 7
So 444020-71-7 is a valid CAS Registry Number.