1,3-DIHYDROXYNAPHTHALENE

Synonym(s):1,3-Naphthalenediol;Naphthoresorcinol

CAS NO.：132-86-5
Empirical Formula: C10H8O2
Molecular Weight: 160.17
MDL number: MFCD00003965
EINECS: 205-079-7
SAFETY DATA SHEET (SDS)
Update Date: 2024-10-28 23:16:16

What is 1,3-DIHYDROXYNAPHTHALENE?

Chemical properties

orange-pink to brown crystalline powder. 1,3-Naphthalenediol [132-86-5], naphthoresorcinol, mp 124℃, is synthesized by hydrolysis of 1,3-naphthalenediamine with sulfuric acid; by heating 1-amino-3-hydroxy-naphthalene-4-sulfonic acid with acid; or by cyclization of ethyl phenylacetoacetate. It is used as an analytical reagent for sugars and glucuronic acid in urine. It is oxidized in alkaline solution to 2-hydroxy-1,4-naphthoquinone and reacts with ammonia at 140℃ to give 3-amino-1- naphthol and 1,3-naphthalenediamine.

The Uses of 1,3-DIHYDROXYNAPHTHALENE

Reagent for sugars, oils, and for glucuronic acid in urine: Forsyth, Nature 161, 239 (1948); Heyns, Kelch, Z. Anal. Chem. 139, 339 (1953).

The Uses of 1,3-DIHYDROXYNAPHTHALENE

1,3-Naphthalenediol is a derivative of naphthalene (N345600) and may have antibacterial activity against oral bacteria.Dyes and metabolites.

What are the applications of Application

1,3-Dihydroxynaphthalene is a reagent for the naphthoresorcinol test of Tollens and Rorive

Properties of 1,3-DIHYDROXYNAPHTHALENE

Melting point:	123-125 °C(lit.)
Boiling point:	246.06°C (rough estimate)
Density	1.0924 (rough estimate)
refractive index	1.5418 (estimate)
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
solubility	ethanol: soluble50mg/mL
form	crystalline
pka	9.15±0.40(Predicted)
color	white to tan
Water Solubility	Soluble in ethanol (50 mg/ml), and water.
Sensitive	Light Sensitive
Merck	14,6396
BRN	2044002
CAS DataBase Reference	132-86-5(CAS DataBase Reference)
EPA Substance Registry System	1,3-Naphthalenediol (132-86-5)

Safety information for 1,3-DIHYDROXYNAPHTHALENE

Signal word	Warning
Pictogram(s)	Health Hazard GHS08
GHS Hazard Statements	H341:Germ cell mutagenicity
Precautionary Statement Codes	P201:Obtain special instructions before use. P202:Do not handle until all safety precautions have been read and understood. P280:Wear protective gloves/protective clothing/eye protection/face protection. P308+P313:IF exposed or concerned: Get medical advice/attention. P405:Store locked up. P501:Dispose of contents/container to..…