C.I. Direct Red 187

C.I. Direct Red 187 structure

CAS No.: 1325-64-0

Chemical Name:: C.I. Direct Red 187

Synonyms: Direct Red 187;C.I. Direct Red 187;C.I.Direct Red 187:C.I.40275

CBNumber:: CB54770812

Molecular Formula:

Molecular Weight:: 0

MDL Number:

MOL File:: Mol file

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C.I. Direct Red 187 Chemical Properties,Uses,Production

Preparation

in reflux (or a little take pressure), under the condition of sodium hydroxide solution in (E)-2-(2-sulfo-4-nitrostyryl)-5-nitrobenzenesulfonic acid and 3-Sulfo-5-aminosalicylic acid diazo, and 2-Amino-4-methylanisole coupled to a heating products.

Properties and Applications

yellow light red. Moderate soluble in water for orange brown, not soluble in alcohol. The strong sulfuric acid for blue-black, diluted for ash brown. The dye solution to join strong hydrochloric acid have dark brown precipitation; Add thick sodium hydroxide solution has the purple precipitation.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	3	2	5-6	3		3

C.I. Direct Red 187 Preparation Products And Raw materials

Raw materials

5-amino-3-sulphosalicylic acid 2-Methoxy-5-methylaniline

Preparation Products

1325-64-0(C.I. Direct Red 187)Related Search:

Direct Red 180 1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt 2-Naphthalenesulfonic acid, 3-[[2,5-dimethyl-4-[(4-sulfophenyl)azo]phenyl]azo]-4-hydroxy-7-[[[(5-hydroxy-7-sulfo-2-naphthalenyl)amino]carbonyl]amino]-, trisodium salt BENZOPURPURIN 4B

C.I. Direct Red 191 Direct red 194 (C.I. 35785) Direct Red 181 2-Hydroxy-5-[[5-hydroxy-6-[(2-sodiooxycarbonylphenyl)azo]-7-sodiosulfo-2-naphthalenyl]azo]benzoic acid sodium salt

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C.I.Direct Red 187:C.I.40275 C.I. Direct Red 187 Direct Red 187 1325-64-0