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Alibaba offers 142 optical brightener agent vbl products. such as free samples, paid samples.

Alibaba offers 1,712 organic pigment red products. about 42% of these are pigment, 28% are tattoo ink, and 1% are oxide. a wide variety of organic pigment red options are available to you, such as coating pigment, ink pigments, and plastic & rubber pigment. you can also choose from iron oxide. as well as from organic pigment.

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 brightening agent er-iii cas no. 13001-40-6 chemical name: 1,4'-bis(2-cyanostyryl) benzole specifications appearance slight yellow greenish powder melting point 288-201 ℃ purity ≥99% moisture content ≤0.5 application optical brightener 199 is used to the whitening process of dacron, acetic fiber, polyamide fiber, blends of terylene-cotton etc.

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