C.I. Direct orange 25

C.I. Direct orange 25 structure

CAS No.: 6486-43-7

Chemical Name:: C.I. Direct orange 25

Synonyms: Direct Orange 25;C.I. Direct orange 25;C.I.Direct Orange 25:C.I.22135;1-Naphthalenesulfonic acid, 4-amino-3-((4'-((4-hydroxy-3-methylphenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, monosodium salt

CBNumber:: CB42497378

Molecular Formula:: C29H24N5NaO4S

Molecular Weight:: 561.59

MDL Number:

MOL File:: 6486-43-7.mol

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C.I. Direct orange 25 Properties

EPA Substance Registry System	C.I. Direct Orange 25 (6486-43-7)

C.I. Direct orange 25 Chemical Properties,Uses,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, respectively with the 4-Hydroxynaphthalene-1-sulfonic acid and o-Cresol coupling.

Properties and Applications

red light orange. Moderate soluble in water for orange brown, slightly soluble in ethanol for gold orange. In the dark for the strong sulfuric acid, diluted for dark purple. The dye solution to join strong hydrochloric acid for violet black, precipitation; Add thick sodium hydroxide solution for yellow orange brown.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	2	4	1-2	2		2-3

C.I. Direct orange 25 Preparation Products And Raw materials

Raw materials

o-Cresol Benzidine 1-Naphthol-4-sulfonic acid

Preparation Products

6486-43-7(C.I. Direct orange 25)Related Search:

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2,7-Naphthalenedisulfonic acid, 3-amino-4-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, disodium salt C.I. Direct Orange 22 C.I. Direct orange 2 [2,6'-Bibenzothiazole]-7-sulfonic acid, 2'-[4-[[2,6-diamino-3-sulfo-5-[(3-sulfophenyl)azo]phenyl]azo]phenyl]-6-methyl-, trisodium salt

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1-Naphthalenesulfonic acid, 4-amino-3-((4'-((4-hydroxy-3-methylphenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, monosodium salt C.I. Direct orange 25 Direct Orange 25 C.I.Direct Orange 25:C.I.22135 6486-43-7