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Molecular formula:c 18 h 15 cln 2 o 6 s molecular weight: 422.84 cas registry number:7023-61-2 manufacturing methods :2-amino-4-chloro-5-methylbenzenesulfonic acid diazotization, and 3-hydroxy-2-naphthoic acid coupling, and then into calcium salt. properties and applications:brilliant red, shallow blue light pink.purple red powder. insoluble in water and ethanol.

Optical brightener cxt or o.b.a.71 for detergent powder , find complete details about optical brightener cxt or o.b.a.71 for detergent powder,optical brightener 71,fluorescent brightener cxt,o.b.a.71 from dyestuffs supplier or manufacturer-tianjin leading import & export co., ltd.

Whitening agents / optical brighteners are additives that impart brightness to polymers and intensify the degree of whiteness. these agents function on the basis of the ‘fluorescence effect’; they absorb light in the uv spectrum and emit light in the blue region of the visible spectrum to yield a brighter and fresher appearance to the plastic.

Fluorescent whitening agent cf(oba 184) optical brightener ci184 optical brightener ob for plastic us $23.00$23.00 / kilogram

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