3-Hydroxy-2-naphthoic acid

ChemicalBook > CAS DataBase List > 3-Hydroxy-2-naphthoic acid

3-Hydroxy-2-naphthoic acid

Product Name: 3-Hydroxy-2-naphthoic acid
CAS No.: 92-70-6
Chemical Name: 3-Hydroxy-2-naphthoic acid
Synonyms: BON ACID;BON;BONA;2-HYDROXY-3-NAPHTHOIC ACID;3-hydroxy-2-naphthoicaci;developer8;naphtholbon;developerbon;cideveloper20;Developer BON
CBNumber: CB4334794
Molecular Formula: C11H8O3
Formula Weight: 188.18
MOL File: 92-70-6.mol

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3-Hydroxy-2-naphthoic acid Property

Melting point:: 218-221 °C(lit.)
Boiling point:: 283.17°C (rough estimate)
Density: 1.43 g/cm3 (23℃)
refractive index: 1.7160 (estimate)
Flash point:: >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)

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Safety

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.

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H318Causes serious eye damage

H335May cause respiratory irritation

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: H46007
Product name: 3-Hydroxy-2-naphthoic acid
Purity: 98%
Packaging: 100g
Price: $63.3
Updated: 2024/03/01

Sigma-Aldrich

Product number: CB_94071429
Product name: BON-CT human cell line
Purity: 94071429, IHW Number: 9290
Packaging: 94071429-DNA-5UG
Price: $390
Updated: 2024/03/01

Sigma-Aldrich

Product number: CB_94071429
Product name: BON-CT human cell line
Purity: 94071429, IHW Number: 9290
Packaging: 1VIAL
Price: $546
Updated: 2024/03/01

Sigma-Aldrich

Product number: 1148238
Product name: Color Related Compound 005
Purity: United States Pharmacopeia (USP) Reference Standard
Packaging: 20mg
Price: $210
Updated: 2024/03/01

TCI Chemical

Product number: H0281
Product name: 3-Hydroxy-2-naphthoic Acid
Purity: >98.0%(HPLC)(T)
Packaging: 25g
Price: $18
Updated: 2024/03/01

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3-Hydroxy-2-naphthoic acid Chemical Properties,Usage,Production

Chemical Properties

yellow to beige-brown fine crystalline powder. 3 -Hydroxy-2-naphthoic acid [92-70-6], BON acid, C11H8O3, Mr 188.17, mp 222℃, forms pale yellow crystals from aqueous ethanol. Alkaline solutions have a green fluorescence. Aqueous ferric chloride produces a blue color, and warming with CHCl3– NaOH results in a green color. Oxidation with alkaline permanganate gives 2-carboxyphenylglyoxylic acid and then phthalic acid. Dry distillation produces dibenzoxanthone. Bromination gives the 4,7-dibromo derivative; nitration, the 4-nitro derivative; and sulfonation with oleum, the 5,7-disulfonic acid derivative.

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.

Preparation

3 -Hydroxy-2-naphthoic acid is invariably by the Kolbe – Schmitt reaction of carbon dioxide with the dried sodium salt of 2-naphthol at 220 – 260℃. Many improvements in both process and equipment have been developed. The main problems are removal of the 50 % unreacted 2-naphthol and avoidance of a tarry byproduct. Yields of 80 % based on the amount of 2-naphthol consumed are possible despite the low conversion.

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

Double sodium salt Water Sodium bicarbonate 2-Naphthol

Preparation Products

NAPHTHOL AS-BI PHOSPHATE Naphthol AS Lithol rubilie BK Pigment Red 48:2 Pigment Red 57:1 3-Hydroxy-N-(3-nitrophenyl)-2-naphthalenecarboxamide Pigment Red 176 2,3-diaminonaphthalene 3-AMINO-2-NAPHTHOL Naphthol AS-D

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View Lastest Price from 3-Hydroxy-2-naphthoic acid manufacturers

Hebei Saisier Technology Co., LTD

Product: 3-Hydroxy-2-naphthoic acid 92-70-6
Price: US $6.00/KG
Min. Order: 1KG
Purity: More than 99%
Supply Ability: 2000KG/Month
Release date: 2024-04-02

Hebei Saisier Technology Co., LTD

Product: 3-Hydroxy-2-naphthoic acid 92-70-6
Price: US $6.00-3.00/KG
Min. Order: 1KG
Purity: More than 99%
Supply Ability: 20000kg
Release date: 2024-04-03

Hebei Jingbo New Material Technology Co., Ltd

Product: 3-Hydroxy-2-naphthoic acid 92-70-6
Price: US $0.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 1000000
Release date: 2024-01-05

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C.I. Developer 20

C.I. Developer 8

c.i.developer20(obs.)

c.i.developer8

cideveloper20

Developer BON