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1-Naphthol-4-sulfonic acid

CAS No.: 84-87-7

Chemical Name:: 1-Naphthol-4-sulfonic acid

Synonyms: Neville acid;1,4-Oxy Acid;Nevile-Winther acid;Nevile-Winthers acid;1-Naphthol-4-sulfoni;HIGH-PURITY N.W. ACID;Nevileandwinther’sacid;Neville and winther acid;Naphthol-4-sulfonic acid;1-Naphthol-4-sulfonicaci

CBNumber:: CB5743566

Molecular Formula:: C10H8O4S

Molecular Weight:: 224.23

MOL File:: 84-87-7.mol

MSDS File:: SDS

Modify Date:: 2024/5/31 17:33:32

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1-Naphthol-4-sulfonic acid Properties

Melting point	170℃
Boiling point	335.63°C (rough estimate)
Density	1.4643 (rough estimate)
refractive index	1.7040 (estimate)
pka	0.73±0.40(Predicted)
form	solid
form	solid
color	white to yellow
InChI	InChI=1S/C10H8O4S/c11-9-5-6-10(15(12,13)14)8-4-2-1-3-7(8)9/h1-6,11H,(H,12,13,14)
InChIKey	HGWQOFDAUWCQDA-UHFFFAOYSA-N
SMILES	C1(S(O)(=O)=O)=C2C(C=CC=C2)=C(O)C=C1
CAS DataBase Reference	84-87-7(CAS DataBase Reference)
EPA Substance Registry System	1-Naphthalenesulfonic acid, 4-hydroxy- (84-87-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302-H315-H319-H335
Precautionary statements	P261-P305+P351+P338

1-Naphthol-4-sulfonic acid Chemical Properties,Uses,Production

Chemical Properties

Transparent flake crystal. soluble in water. 1-Hydroxynaphthalene- 4 -sulfonic acid [84-87-7]. (4-hydroxynaphthalene-1-sulfonic acid), Nevile and Winther’s acid, NW acid, C10H8O4S, Mr 224.23, and its salts are water soluble, but the sodium salt may be precipitated from solution by salting out. Coupling with diazo compounds takes place in the 2-position. Nitration yields 2,4-dinitro-1-naphthol, whereas nitrosation gives 2-nitroso-1-hydroxynaphthalene-4-sulfonic acid. Sulfonation leads to a mixture of 1-hydroxynaphthalene-2,4-di- and 2,4,7- trisulfonic acids.

Preparation

After drying under vacuum, the resulting filter cake contains 1-naphthol-4-sulphonic acid in a yield of 92% of theory and <0.5% 1-naphthol-2-sulphonic acid and 3% of 1-naphthol-2,4-disulphonic acid based on the weight of 1-naphthol-4-sulphonic acid.

1-Naphthol-4-sulfonic acid Preparation Products And Raw materials

Raw materials

Sodium bisulfite Naphthionic acid

Preparation Products

disodium 3-[[4'-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate Acid Red 374 sodium 3-[[4-(benzoylethylamino)-2-methylphenyl]azo]-4-hydroxynaphthalene-1-sulphonate Direct Blue 151 C.I. 14720

sodium 4-hydroxy-3-[[3-(phenylsulphamoyl)-p-tolyl]azo]naphthalenesulphonate 3-[(5-Chloro-2-hydroxy-3-sulfophenyl)azo]-4-hydroxy-1-naphthalenesulfonic acid disodium salt 5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt disodium 3-[[4'-[[6-amino-1-hydroxy-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate 4,4'-[(2-Methyl-5-sodiosulfo-1,3-phenylene)bis[azo(4,6-diamino-3,1-phenylene)azo]]bis[naphthalene-1-sulfonic acid sodium] salt

BENZOAZURINE BRILLIANT PURPURIN R THIAZINE RED Acid Violet 131 NAPHTHALENE SCARLET B

Aluminium, 7-hydroxy-8-[(4-sulfo-1-naphthalenyl)azo]-1,3-naphthalenedisulfonic acid complex Mordant Violet 2 DIRECTVIOLET32 disodium (3Z)-3-[[4-(4-anilino-3-sulfonato-phenyl)diazenylnaphthalen-1-yl]hydrazinylidene]-4-oxo-naphthalene-1-sulfonate 3-[[2-[(N-Ethyl-N-phenylamino)sulfonyl]phenyl]azo]-4-hydroxy-1-naphthalenesulfonic acid sodium salt

6-Amino-4-hydroxy-5-[[4'-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt OXAMINE BLUE 4R

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1-Naphthol-4-sulfonic acid Suppliers

Global( 207)Suppliers

Supplier	Tel	Country	ProdList	Advantage	Inquiry
Dynemic Products Ltd.	+91-7927663071 +91-7927663071	Gujarat, India	64	58	Inquiry
Aceto Chem Pvt Ltd	+91-9825126143 +91-9825469333	Gujarat, India	7	58	Inquiry
Santel Industries	+91-7940075559 +91-7926401417	Gujarat, India	98	58	Inquiry
A.J Chemicals	91-9810153283	New Delhi, India	6124	58	Inquiry
CLEARSYNTH LABS LTD.	+91-22-45045900	Hyderabad, India	6351	58	Inquiry
A. B. Enterprises	+91-8048077585	Mumbai, India	1396	58	Inquiry
OCEAN TRADING CORPORATION	+91(22) 24921669	New Delhi, India	6211	58	Inquiry
Emco Dyestuff Pvt. Ltd.	+91 (22) 894 35 21 / 894 49 06	New Delhi, India	189	54	Inquiry
Changzhou waston chemical technology Co.,Ltd	+86-051985861892 +8618112881323	China	240	58	Inquiry
Hebei Zhuanglai Chemical Trading Co.,Ltd	+8613343047651	China	3002	58	Inquiry

Supplier	Advantage
Dynemic Products Ltd.	58
Aceto Chem Pvt Ltd	58
Santel Industries	58
A.J Chemicals	58
CLEARSYNTH LABS LTD.	58
A. B. Enterprises	58
OCEAN TRADING CORPORATION	58
Emco Dyestuff Pvt. Ltd.	54
Changzhou waston chemical technology Co.,Ltd	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	58

84-87-7(1-Naphthol-4-sulfonic acid )Related Search:

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Naphthalene-2-sulfonic acid CHLOROPHOSPHONAZO III Terbinafine hydrochloride Sodium 2-naphthalenesulfonate 1-Naphthol

1,1'-Bi-2-naphthol 1-NAPHTHOL-4-SULFONIC ACID SODIUM SALT 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID BENZOAZURINE ACID RED 4

THIAZINE RED AZO BLUE PONCEAU SX

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1-Naphthalenesulfonicacid,4-hydroxy- 4-hydroxy-1-naphthalenesulfonicaci 4-hydroxynaphthalene-1-sulphonicacid Nevileandwinther’sacid N-(M-SULFOPHENYL) GAMMA ACID 4-Hydroxy-1-naphthalenesulfonic acid 1-NAPHTHOL-4-SULFONIC ACID Nevile-Winthers acid Meville-winter acid(1-naphthol-4-sulfonic acid,NW-acid) 4-hydroxynaphthalene-1-sulfonic acid NEVILLE-WINTHER ACID (NA SALT) 1-Hydroxy-4-sulfonaphthalene HIGH-PURITY N.W. ACID 1-Hydroxy-4-naphthalenesulfonic acid Neville acid Neville and winther acid 1,4-Oxy Acid a-Naphthol-4-sulfonic acid Nevile-Winther acid 1-Naphthol-4-sulfoni Naphthol-4-sulfonic acid 1-Naphthol-4-sulfonicaci 1-Naphthol-4-sulfonic acid ISO 9001：2015 REACH 4-Hydroxynaphthalene-1-sulfonicacid hydrate 84-87-7 C10H8O4S Intermediates of Dyes and Pigments