3-Hydroxy-2-naphthoic acid

3-Hydroxy-2-naphthoic acid Basic information

Product Name:	3-Hydroxy-2-naphthoic acid
Synonyms:	3-hydroxy-2-naphthoicaci;3-Hydroxy-beta-naphthoic acid;developer8;developerbon;Kyselina 3-hydroxy-2-naftoova;kyselina3-hydroxy-2-naftoova;Miketazol Developer ONS;miketazoldeveloperons
CAS:	92-70-6
MF:	C11H8O3
MW:	188.18
EINECS:	202-180-8
Product Categories:	Building Blocks;C11 to C12;Carbonyl Compounds;Carboxylic Acids;Chemical Synthesis;Organic Building Blocks;Intermediates of Dyes and Pigments;Intermediates;Naphthalene derivatives;Organics;bc0001
Mol File:	92-70-6.mol

3-Hydroxy-2-naphthoic acid Chemical Properties

Melting point	218-221 °C(lit.)
Boiling point	283.17°C (rough estimate)
density	1.43 g/cm3 (23℃)
refractive index	1.7160 (estimate)
Fp	>150°C
storage temp.	Sealed in dry,Room Temperature
solubility	0.072g/l practically insoluble
pka	3.02±0.30(Predicted)
form	Fine Crystalline Powder
color	Yellow to beige-brown
Water Solubility	PRACTICALLY INSOLUBLE
λmax	395nm(H2O (pH 3.5))(lit.)
Merck	14,4835
BRN	744100
CAS DataBase Reference	92-70-6(CAS DataBase Reference)
NIST Chemistry Reference	2-Naphthalenecarboxylic acid, 3-hydroxy-(92-70-6)
EPA Substance Registry System	3-Hydroxy-2-naphthoic acid (92-70-6)

Safety Information

Hazard Codes	Xn,Xi
Risk Statements	22-36-36/37/38
Safety Statements	26-37/39
WGK Germany	1
RTECS	QL1755000
TSCA	Yes
HS Code	29182910
Hazardous Substances Data	92-70-6(Hazardous Substances Data)
Toxicity	The acute oral LD50 of 3-Hydroxy-2-naphthoic acid in rats was 823-1040 mg/kg bw.

MSDS Information

Provider	Language
2-Hydroxy-3-naphthoic acid	English
SigmaAldrich	English
ACROS	English
ALFA	English

3-Hydroxy-2-naphthoic acid Usage And Synthesis

Chemical Properties	yellow to beige-brown fine crystalline powder
Uses	3-Hydroxy-2-naphthoic acid is mainly used as intermediate for the production of dyes and pigments. Further uses are as intermediate for insecticides and pharmaceuticals (ECB, 2000).
Uses	2-hydroxy-3-naphthoic acid (BON) is coupled with diazo compounds and their calcium salts are bright red bleed resistance pigments. The somewhat higher cost manganese salt shows better exterior durability than the calcium or barium salts. The BON red pigments are characterized by an extremely high degree of color stability, resistance to acids and alkalies and are nontoxic.
Definition	ChEBI: 3-Hydroxy-2-naphthoate is a naphthoic acid.
Hazard	Irritant.
Purification Methods	Crystallise it from water or acetic acid. The S-benzyisothiuronium salt has m 216-217o (from EtOH). It forms many metal complex salts. [Beilstein 10 H 333, 10 III 1084.]

3-Hydroxy-2-naphthoic acid Preparation Products And Raw materials

Raw materials	Sodium bicarbonate-->Water-->2-Naphthol-->METHYL 3-HYDROXY-2-NAPHTHOATE-->1,2-Bis(3-methylphenoxy)ethane-->Ethylene glycol diphenyl ether-->Benzyltrimethylammonium chloride-->Potassium hydroxide
Preparation Products	NAPHTHOL AS-BI PHOSPHATE-->Naphthol AS-->2,3-diaminonaphthalene-->Pigment Red 57:1-->Pigment Red 48:2-->Naphthol AS-D-->3-Hydroxy-N-(3-nitrophenyl)-2-naphthalenecarboxamide-->3-AMINO-2-NAPHTHOL-->Pigment Red 176-->Lithol rubilie BK-->6-Hydroxy-2-naphthoic acid-->6-ACETOXY-2-NAPHTHOIC ACID-->3-METHOXY-2-NAPHTHOIC ACID-->NAPHTHOL AS-LT-->NAPHTHOL AS-E ACETATE

1-Naphthol 1,1'-Bi-2-naphthol 4-Hydroxybenzoic acid Salicylic acid Ethyl 2-(Chlorosulfonyl)acetate 2-Naphthoic acid 2'-Hydroxy-3-phenylpropiophenone 1,4-Dihydroxy-2-naphthoic acid 3-Hydroxy-2-naphthoic acid 3-Hydroxybenzoic acid Butylparaben 2,3,4-Trihydroxybenzoic acid 1-Naphthoic acid 3,5-Dihydroxybenzoic acid 6-Hydroxy-2-naphthoic acid Phenmedipham 2-Naphthol Terbinafine Hydrochloride

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