2-Naphthol

2-Naphthol

Uses It is used in the production of Tuba's acid, J acid, 2,3 acid and azo dyes.

Model Enterprise Standard

Aliases Ethyl naphthol; beta-naphthol; 2-hydroxynaphthalene; β-hydroxynaphthalene;-naphthol; β-naphthol;

Purity 98%

Specification 200kg/drum

Molecular formula C10H8O

Appearance Cracked white shiny flakes white powder

Product English Name 2-Naphthol

Heavy metal 10ppm

Chinese name: 2-Naphthol

Chinese Synonyms: Ethanol; beta-naphthol; 2-hydroxynaphthalene; β-hydroxynaphthalene; -naphthol; β-naphthol; 2-naphthol; 2-naphthol

English name: 2-Naphthol

CAS Number: 135-19-3

Molecular formula: C10H8O

Molecular weight: 144.17

EINECS Number: 205-182-7

Related categories: general reagents; other biochemical reagents; phenol; pigments; small molecule inhibitors; organic chemicals; sulfur-containing compounds; chemical raw materials; chemical reagents; flavors and fragrances; organic raw materials

2-Naphthol

2-Naphthol Chemical Properties

Melting point 120-122 °C(lit.)

Boiling point 285-286 °C(lit.)

Density 1,28 g/cm3

Vapor Density 4.97 (vs air)

Vapor pressure 10 mm Hg ( 145.5 °C)

Flash point 153 °C

Storage Condition Refrigerator

Water solubility 1 g/L (20 oC)

Merck 14,6384

BRN 742134

Stable. Combustible. Dust may form explosive mixture with air. Incompatible with strong oxidizing agents, phenol.

CAS Database 135-19-3 (CAS DataBase Reference)

NIST Chemical Substance Information 2-Naphthalenol(135-19-3)

EPA Chemical Substance Information 2-Naphthalenol(135-19-3)

2-Naphthol Usage And Synthesis

Food additives*allowable usage*allowable residue standard

Chinese name of additive Chinese name of food that is allowed to use this additive Function of additive *Allowable usage amount (g/kg) *Allowable residual amount (g/kg)

Ethyl naphthol Surface-treated fresh fruit (only citrus) Preservative 0.1 Residue ≤70mg/kg

Chemical Properties White shiny flakes or white powder. Insoluble in water, soluble in ethanol, ether, chloroform, glycerol and alkali solutions.

Uses It is used to make Tuba's acid, J acid, 2,3 acid and azo dyes.

Uses As a preservative, my country stipulates that it can be used for citrus preservation. The maximum usage amount is 0.1g/kg, and the residual amount is not more than 70mg/kg.

Uses Ethyl naphthol, also known as β-naphthol and 2-naphthol, is an intermediate of plant growth regulator naphthoxyacetic acid.

Uses It can be used as feed preservative, and it can also be used for citrus preservation according to my country's regulations.

Uses as analytical reagents, ethylene, carbon monoxide absorbers and fluorescent indicators

Organic raw materials and dye intermediates with important uses, used in the manufacture of toubic acid, butyric acid, β-naphthol-3-carboxylic acid, and used in the manufacture of anti-aging agent D, anti-aging agent DNP and other anti-aging agents, organic pigments and fungicides, etc. .

Uses It is used in the preparation of Tuba's acid, J acid, 2.3-acid, and in the preparation of anti-aging agent D, anti-aging agent DNP and its anti-aging agent, organic pigments and fungicides

Ethyl naphthol Surface-treated fresh fruit (only citrus) Preservative 0.1 Residue ≤70mg/kg

Chemical Properties White shiny flakes or white powder. Insoluble in water, soluble in ethanol, ether, chloroform, glycerol and alkali solutions.

Uses It is used to make Tuba's acid, J acid, 2,3 acid and azo dyes.

Uses As a preservative, my country stipulates that it can be used for citrus preservation. The maximum usage amount is 0.1g/kg, and the residual amount is not more than 70mg/kg.

Uses Ethyl naphthol, also known as β-naphthol and 2-naphthol, is an intermediate of plant growth regulator naphthoxyacetic acid.

Uses It can be used as feed preservative, and it can also be used for citrus preservation according to my country's regulations.

Uses as analytical reagents, ethylene, carbon monoxide absorbers and fluorescent indicators

Organic raw materials and dye intermediates with important uses, used in the manufacture of toubic acid, butyric acid, β-naphthol-3-carboxylic acid, and used in the manufacture of anti-aging agent D, anti-aging agent DNP and other anti -aging agents, organic pigments and fungicides, etc. .

Uses It is used in the preparation of Tuba's acid, J acid, 2.3-acid, and in the preparation of anti-aging agent D, anti-aging agent DNP and its anti-aging agent, organic pigments and fungicides