1,2-DIHYDROXYNAPHTHALENE Property

Melting point:

101-103 °C (lit.)

Boiling point:

246.06°C (rough estimate)

Density 

1.0924 (rough estimate)

refractive index 

1.5178 (estimate)

storage temp. 

-20°C Freezer, Under inert atmosphere

solubility 

Chloroform (Slightly), Methanol (Slightly)

form 

Solid

pka

8.42±0.50(Predicted)

color 

Dark Brown

CAS DataBase Reference

574-00-5(CAS DataBase Reference)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-37/39

WGK Germany 

3

HS Code 

2906290090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

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

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

1,2-DIHYDROXYNAPHTHALENE Chemical Properties,Usage,Production

Chemical Properties

1,2-Naphthalenediol [574-00-5], mp 108℃, is prepared by reduction of 1,2- naphthoquinone with hydrazine hydrate or sodium dithionite. It is oxidized under mild conditions to 1,2-naphthoquinone and couples with diazotized anilines in the 4-position.

Uses

1,2-Dihydroxynaphthalene was used as substrate to investigate the rate of oxygen consumption by washed cell suspensions of Corynebacterium sp. strain C125 grown on o-xylene, tetralin or succinate.

Definition

ChEBI: Naphthalene-1,2-diol is a naphthalenediol. It has a role as a mouse metabolite.

General Description

1,2-Dihydroxynaphthalene is the most sensitive biomarker for an internal exposure to naphthalene in humans.