2,7-NAPHTHALENEDIOL

PRODUCT IDENTIFICATION
CAS NO 582-17-2

2,7-NAPHTHALENEDIOL

EINECS NO. 209-478-7
FORMULA C10H6(OH)2
MOL WT. 160.18
H.S. CODE 2907.29.9000
TOXICITY  
SYNONYMS 2,7-Dihydroxynaphthalene; C.I. 76645; Naphthalene-2,7-Diol;
2,7-Naphthalenediol; Naphthalenediol-2,7;

SMILES

c12c(cc(O)cc1)cc(O)cc2

CLASSIFICATION

 

EXTRA NOTES

Starting material for the synthesis of sulfonic acids and divinylnaphthalenes.

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE off white to grey powder
MELTING POINT 185 - 190 C
BOILING POINT Decomposes
SPECIFIC GRAVITY  
SOLUBILITY IN WATER Soluble in hot water
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS  

REFRACTIVE INDEX

  
FLASH POINT

 

STABILITY Stable under ordinary conditions.

EXTERNAL LINKS & GENERAL DESCRIPTION

USA.gov - 2,7-Dihydroxynaphthalene

Google Scholar Search - 2,7-Dihydroxynaphthalene

PubChem Compound Summary - 2,7-Dihydroxynaphthalene

http://www.ncbi.nlm.nih.gov/ -  2,7-Dihydroxynaphthalene

Material Safety Data Sheet - 2,7-Dihydroxynaphthalene

EPA - Substance Registry Services - 2,7-Dihydroxynaphthalene

Local:
Dihydroxynaphthalenes are compounds which two hydroxyl groups are substituted to naphthalene ring system. There are positional isomers differing by the location of the hydroxyl group. The different positions provide various chemical structures which offer important roles to each characteristics. They are used directly in making several dyes and are converted into numerous corresponding amines, esters, ethers and carboxylic derivatives as well as into numerous sulfo- and nitro-group substituted (mono-, di- and tri) compounds. They find extensive applications in making dyes, pigments, fluorescent whiteners, tanning agents, antioxidants, and antiseptics. Dihydroxynaphthalene structure is found as a ligand in transition-metal catalysts particularly in the form of binaphthalenediol which is composed of two naphthalenediol rings connected at one carbon site on each ring.

SALES SPECIFICATION

APPEARANCE

 off white to grey powder
PURITY

98.0% min

MELTING POINT 185 - 190 C
TRANSPORTATION
PACKING  
HAZARD CLASS  
UN NO.

 

SAFETY INFORMATION

HAZARD OVERVIEW

GHS (Globally Harmonised System) Classification: Acute toxicity, Oral. Skin irritation. Eye irritation. Specific target organ toxicity - single exposure. Hazard statements: Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

GHS

 

SIGNAL WORD Warning

PICTOGRAMS

HAZARD STATEMENTS

H315-H319-H335

P STATEMENTS

P261-P305 + P351 + P338

EC DIRECTIVES

 

HAZARD CODES

RISK PHRASES

22

SAFETY PHRASES

22-24/25

PRICE INFORMATION