Fluorescent brightener 199

Fluorescent brightener 199 is a kind of plastics additives that can absorb UV light then emit visible blue light to reduce the yellowish and make the products whiter. Fluorescent brightener 199 mainly used in whitening of polyester fiber and as the raw material of paste form brightening agent in textile dyeing.

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Product Description

Fluorescent brightener 199 is a kind of plastics additives that can absorb UV light then emit visible blue light to reduce the yellowish and make the products whiter.

Fluorescent brightener 199 mainly used in whitening of polyester fiber and as the raw material of paste form brightening agent in textile dyeing.

Product Name Fluorescent brightener 199
Chemical Name 1,4'-bis(2-cyanostyryl) Benzene
CAS No. 13001-39-3
C.I. No. 199
Structural Formula
Molecular Formula C24H16N2
Molecular Weight 332
Properties It has high whitening brightening effect and excellent fastness to sublimation.
Technical Index Appearance:greenish yellow crystalline powder
Melting Point:230-232°C Purity:≥99% Maximum UV Absorption Spectrum:365nm
Uses Mainly be used in whitening of polyester fiber and as the raw material of paste form brightening agent in textile dyeing.
Package 10kg/25kg per fiber drum

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