glory ob optical brightener
chemical name ：2,5-bis-(5-tert-butyl-2-benzoxazolyl)thiophene c.i. no. : fluorescent whitening agent 184【7128-64-5】 appearance light green powder melting point 196-203 ℃ decomposition temperature 220 ℃ maximum uv absorption wavelength 369nm maximum emission wavelength 435nm color bright blue fluorescence features it has good weather resistance and high stability. it is a commonly used fluorescent whitening agent; it has passed…
