Oxazine 170 perchlorate, a laser dye with a broad excitation spectrum (300−550 nm), strongly absorbs light wavelengths above 550 nm and emits fluorescence at approximately 645 nm [1].

Oxazine 170 perchlorate, when combined with semiconductor nanomaterials, serves as a ratiometric photochemical pH sensor [1]. This compound exhibits fluorescence properties with an excitation wavelength range of 300-550 nm and an emission spectrum at 645 nm [1].