444157-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 444157-17-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,1,5 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 444157-17:
(8*4)+(7*4)+(6*4)+(5*1)+(4*5)+(3*7)+(2*1)+(1*7)=139
139 % 10 = 9
So 444157-17-9 is a valid CAS Registry Number.