Extinction Coefficient Calculator
Enter a wavelength (400-700 nm) to estimate the molar extinction coefficient ($\epsilon$).
Wavelength (nm):
Get Coefficients
Please enter a wavelength between 400 and 700 nm.
FD&C Red #40
--
M
-1
cm
-1
FD&C Blue #1
--
M
-1
cm
-1
Reference Data Points
Wavelength (nm)
Red #40 (ε)
Blue #1 (ε)