2,3-NAPHTHALENEDIOL

PRODUCT IDENTIFICATION
CAS NO 92-44-4

2,3-NAPHTHALENEDIOL
EINECS NO. 202-156-7
FORMULA C10H6(OH)2
MOL WT. 160.18
H.S. CODE
TOXICITY
SYNONYMS 2,3-Dihydroxynaphthalene; 2,3-DON; Naphthalene-2,3-diol;
SMILES

CLASSIFICATION

 NAPHTHALENE / DIOLS /

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE off white to grey powder
MELTING POINT 162 - 164 C
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER slightly soluble
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS  

REFRACTIVE INDEX

  
FLASH POINT

 
STABILITY Stable under ordinary conditions.

APPLICATIONS
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. 2,3-Naphthalenediol is used as an intermediate for organic synthesis especially for crown ether and naphthalene sulfonic acid series used to make colorant compounds.

SALES SPECIFICATION

APPEARANCE

 off white to grey powder
PURITY

98.0% min
MELTING POINT 160 - 165 C
TRANSPORTATION
PACKING  
HAZARD CLASS  
UN NO.

 
OTHER INFORMATION

Hazard Symbols: XI, Risk Phrases: 36/37/38 Safety Phrases: 26
PRICE INFORMATION