83944-17-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83944-17-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,4 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83944-17:
(7*8)+(6*3)+(5*9)+(4*4)+(3*4)+(2*1)+(1*7)=156
156 % 10 = 6
So 83944-17-6 is a valid CAS Registry Number.