Cartax CXDP Powder Substituted benzoxazinone 10128-55-9 Clariant Special effect pigments >> Fluorescent Whitening Agent/ Optical brithener Inks Printing Inks & Varnishes Cartax CXDP Powder Substituted benzoxazinone Fluorescent pigment Cartax CXDP powder is a speciality product having a pronounced fluorescent effect for use in the printing ink and lacquer industry. Substituted benzoxazinone. Used as a fluorescent pigment in printing ink and lacquer industry.