Product

2-Aminophenol-4-sulfonic acid

CAS No.：98-37-3

Other grades of this product :

2-Aminophenol-4-sulfonic acid Basic information

Product Name:	2-Aminophenol-4-sulfonic acid
Synonyms:	3-amino-4-hydroxybenzenesulfonic acid semihydrate;4-Hydroxy-3-aminobenzenesulfonic acid;Benzenesulfonicacid,3-amino-4-hydroxy-;3-AMINO-4-HYDROXYBENZENESULFONIC ACID;3-AMINO-4-HYDROXYBENZENESULFONIC ACID HYDRATE;3-AMINO-4-HYDROXYBENZENE-4-SULFONIC ACID HYDRATE;4-HYDROXYMETANILIC ACID HYDRATE;2 AMINO-1-PHENOL-4-SULFONIC ACID
CAS:	98-37-3
MF:	C6H7NO4S
MW:	189.19
EINECS:	202-662-8
Product Categories:	Building Blocks;Chemical Synthesis;Dye Intermediate;Organic Building Blocks;Sulfonic/Sulfinic Acids;Sulfur Compounds;Intermediates of Dyes and Pigments;bc0001
Mol File:	98-37-3.mol

2-Aminophenol-4-sulfonic acid Chemical Properties

Melting point	≥300 °C(lit.)
Boiling point	398.09℃[at 101 325 Pa]
density	1.5149 (rough estimate)
vapor pressure	0Pa at 25℃
refractive index	1.5500 (estimate)
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
form	powder to crystal
pka	-0.81±0.50(Predicted)
color	Orange to Amber to Dark red
Water Solubility	<0.1 g/100 mL at 21.5 ºC
BRN	514765
Stability:	Stable. Incompatible with strong oxidizing agents, strong acids and strong bases.
LogP	-2.56 at 25℃
CAS DataBase Reference	98-37-3(CAS DataBase Reference)
EPA Substance Registry System	4-Hydroxymetanilic acid (98-37-3)

Safety Information

Hazard Codes	C
Risk Statements	34
Safety Statements	26-36/37/39-45
RIDADR	UN 2585 8/PG 3
WGK Germany	1
HazardClass	8
PackingGroup	III

MSDS Information

Provider	Language
2-Aminophenol-4-sulfonic acid	English
SigmaAldrich	English

2-Aminophenol-4-sulfonic acid Usage And Synthesis

Chemical Properties	brown crystals
Uses	3-Amino-4-hydroxybenzenesulfonic acid can be used to synthesize various heterocyclic Schiff bases for imaging applications. 3-Amino-4-hydroxybenzenesulfonic acid can also be used for comparative assessment in the Tetrahymena pyriformis growth inhibition assay.
General Description	Rhombic brown crystals.
Air & Water Reactions	2-Aminophenol-4-sulfonic acid may be sensitive to prolonged exposure to air. Insoluble in water.
Reactivity Profile	2-Aminophenol-4-sulfonic acid may react with strong oxidizers and mineral acids or bases.
Fire Hazard	Flash point data for 2-Aminophenol-4-sulfonic acid is not available, however 2-Aminophenol-4-sulfonic acid is probably combustible.

2-Aminophenol-4-sulfonic acid Preparation Products And Raw materials

Raw materials

Phosphoric acid-->Zinc oxide-->2-Nitrophenol-->4-hydroxy-3-nitrobenzenesulphonic acid-->4-Chloro-3-nitrobenzenesulfonic acid-->Sulfuric acid-->2-Aminophenol

Preparation Products

Solvent Yellow 21-->Reactive Violet 2-->trisodium [mu-[2-[[1-hydroxy-6-[[[[5-hydroxy-6-[(2-hydroxy-5-sulphophenyl)azo]-7-sulpho-2-naphthyl]amino]carbonyl]amino]-3-sulpho-2-naphthyl]azo]benzoato(7-)]]dicuprate(3-)-->Direct Blend Rubine D-BLL-->trisodium [2-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-5-hydroxy-6-[(2-hydroxy-5-sulphophenyl)azo]naphthalene-1,7-disulphonato(5-)]cuprate(3-)-->2-Amino-6-nitro-1-phenol-4-sulfonic acid-->REACTIVE VIOLET 2-->ACID ALIZARIN VIOLET N-->trisodium [mu-[2-[[1-hydroxy-6-[[[[5-hydroxy-6-[(2-hydroxy-5-sulphophenyl)azo]-7-sulpho-2-naphthyl]amino]carbonyl]amino]-3-sulpho-2-naphthyl]azo]benzoato(7-)]]dicuprate(3-)-->Mordant Orange 37-->DIRECT RED 243-->Acid chrome blue K-->trisodium [7-[[4-[[4-[[4-[[2,4-dihydroxy-5-[(2-hydroxy-5-sulphophenyl)azo]phenyl]azo]benzoyl]amino]-o-tolyl]azo]-o-tolyl]azo]naphthalene-1,3-disulphonato(5-)]cuprate(3-)-->DIRECT BROWN 95-->Reactive Blue 104

Welcome！

Please leave a message for us or use the following ways to contact us, we will reply to you as soon as possible, and provide you with the most sincere service, thank you.

NO. 18 ,Wujiang Road, Wulidian Street, Jiangbei District, Chongqing
+86-23-6139-8061 +86-13650506873
danny@chemdad.com sales@chemdad.com
www.chemdad.com
WhatsApp +86-13650506873