Tetraphenyl butadiene (1,1,4,4-tetraphenyl-1,3-butadiene or TPB) is an organic chemical compound used as an electroluminescent dye.
T 0595 (OTTOKEMI) T1,1,4,4-Tetraphenyl-1,3-butadiene, suitable for scintillation, ≥99% Cas 1450-63-1 - used as an electroluminescent dye. It glows blue with an emission spectrum peak wavelength at 430 nm, which makes it useful as a wavelength shifter.