1,8-Naphthalic anhydride

1,8-Naphthalic anhydride Basic information

Product Name:	1,8-Naphthalic anhydride
Synonyms:	Two1,8-naphthaleneanhydride;Naphthalic anh;1,8 Naphthaloic Anhydride;ai3-09071;Benzo[de]isochromene-1,3-dione;Naphthalenedicarboxylic-1,8-anhydride;naphthalenedicarboxylicanhydride;naphthalic
CAS:	81-84-5
MF:	C12H6O3
MW:	198.17
EINECS:	201-380-2
Product Categories:	Naphthalene derivatives;Oxygen cyclic compounds;Intermediates of Dyes and Pigments
Mol File:	81-84-5.mol

1,8-Naphthalic anhydride Chemical Properties

Melting point	269 °C
Boiling point	295.48°C (rough estimate)
density	1.2571 (rough estimate)
vapor pressure	0Pa at 25℃
refractive index	1.5550 (estimate)
Fp	272 °C
storage temp.	Store below +30°C.
solubility	Chloroform (Slightly, Heated), DMSO
form	Powder
color	Beige to light brown
Water Solubility	decomposes
Sensitive	Moisture Sensitive
BRN	153190
LogP	3.24
Surface tension	72.5mN/m at 1.3mg/L and 20℃
CAS DataBase Reference	81-84-5(CAS DataBase Reference)
NIST Chemistry Reference	1,8-Naphthalic anhydride(81-84-5)
EPA Substance Registry System	1,8-Naphthalic anhydride (81-84-5)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-37/39-24/25
WGK Germany	2
RTECS	QK5350000
F	21
TSCA	Yes
HS Code	29173980
Hazardous Substances Data	81-84-5(Hazardous Substances Data)

MSDS Information

Provider	Language
1,8-Naphthalenedicarboxylic anhydride	English
SigmaAldrich	English
ACROS	English
ALFA	English

1,8-Naphthalic anhydride Usage And Synthesis

Chemical Properties	BEIGE TO LIGHT BROWN POWDER
Uses	Dyestuffs, organic synthesis in general.
Uses	1,8-Naphthalic anhydride is used as a seed protectant and to prepare dyestuffs and optical brighteners. It is used in the preparation of napthalimide analogues, which finds application as anticancer agents. Further, it is used as fluorescent brightening agent for polymeric materials.
Definition	ChEBI: Naphthalic anhydride is a cyclic dicarboxylic anhydride.
Purification Methods	Extract it with cold aqueous Na2CO3 to remove free acid, then crystallise from acetic anhydride. [Beilstein 17 III/IV 6392, 17/11 V 492.]

1,8-Naphthalic anhydride Preparation Products And Raw materials

Raw materials

Acenaphthene

Preparation Products

1,8-NAPHTHALIC ACID-->fluorescent whitening agent EFR-->Solvent Yellow 98-->1-AMINO-8-NAPHTHOIC ACID-->SOLVENT YELLOW 85-->Pigment Red 190-->Fluorescent Yellow Ii (Disperse)-->Solvent Red 179-->3,4,9,10-Perylenetetracarboxylic dianhydride-->1,8-DIMETHYLNAPHTHALENE-->Vat Grey BG-->3,9-perylenedicarboxylic acid-->N-HYDROXYNAPHTHALIMIDE TRIFLATE 99+%-->3-Hydroxy-1,8-naphthalic anhydride-->8-Methyl-1-naphthalenemethanol-->4-Chloro-1,8-naphthalic anhydride-->2,3-NAPHTHALENEDICARBOXYLIC ACID-->Solvent Red 179-->Fluorescent Yellow Ii (Disperse)

Metformin Erythromycin Estolate Naphthalene Acetic anhydride Maleic anhydride 3-BROMO-1,8-NAPHTHALIC ANHYDRIDE Di-tert-butyl dicarbonate Succinic anhydride 4-Bromo-1,8-naphthalic anhydride ,4-BR0MO-1.8-NAPHTHALIC ANHYDRIDE,2-BROMO-1,8-NAPHTHALIC ANHYDRIDE,8-bromo-1,8-naphthalic anhydride 4-AMINO-1,8-NAPHTHALIC ANHYDRIDE 5-AMINO-BENZO[DE]ISOCHROMENE-1,3-DIONE Dimethyl fumarate Phthalic anhydride Glutaric anhydride 1,8-Naphthalic anhydride 4-Bromo-1,8-naphthalic anhydride Dimethylamine Dimethyl carbonate Naphthalic Anhydride

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