273944-58-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 273944-58-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,3,9,4 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 273944-58:
(8*2)+(7*7)+(6*3)+(5*9)+(4*4)+(3*4)+(2*5)+(1*8)=174
174 % 10 = 4
So 273944-58-4 is a valid CAS Registry Number.