1,2-DIHYDRONAPHTHALENE

Synonym(s):Dialin

CAS NO.：447-53-0
Empirical Formula: C10H10
Molecular Weight: 130.19
MDL number: MFCD00001672
EINECS: 207-183-8
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-13 11:21:50

What is 1,2-DIHYDRONAPHTHALENE?

Chemical properties

CLEAR LIGHT YELLOW TO SLIGHTLY BROWN LIQUID

Definition

ChEBI: A dihydronaphthalene hydrogenated at C-1 and C-2.

Synthesis Reference(s)

Tetrahedron Letters, 28, p. 2481, 1987 DOI: 10.1016/S0040-4039(00)95446-7

Synthesis

Dissolve 1,2-naphthoquinone (0.18 mmol) in ethanol (3 mL). NaBH4 (73 mg, 1.93 mmol) suspended in ethanol (3 mL) was added dropwise to the reaction mixture. The mixture was stirred at room temperature under nitrogen. After 1.5 hours, the mixture was poured into ice water (50 mL). Acidify the mixture with HCl (0.5 M). The mixture was extracted with CH2Cl2. The mixture was dried over magnesium sulfate. The mixture was concentrated to give 1,2-dihydroxynaphthalene.

Properties of 1,2-DIHYDRONAPHTHALENE

Melting point:	−8 °C(lit.)
Boiling point:	89 °C16 mm Hg(lit.)
Density	0.997 g/mL at 25 °C(lit.)
refractive index	n20/D 1.582(lit.)
Flash point:	153 °F
storage temp.	Sealed in dry,Room Temperature
form	neat
color	Colorless to Light yellow
Water Solubility	Not miscible or difficult to mix with water.
BRN	1851372
CAS DataBase Reference	447-53-0(CAS DataBase Reference)
EPA Substance Registry System	Naphthalene, 1,2-dihydro- (447-53-0)

Safety information for 1,2-DIHYDRONAPHTHALENE

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H319:Serious eye damage/eye irritation
Precautionary Statement Codes	P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.