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1,8-Naphthalic anhydride

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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
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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)
Flash point:
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)
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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

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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

Preparation Products

1,8-NAPHTHALIC ACIDfluorescent whitening agent EFRSolvent Yellow 981-AMINO-8-NAPHTHOIC ACIDSOLVENT YELLOW 85Pigment Red 190Fluorescent Yellow Ii (Disperse)Solvent Red 1793,4,9,10-Perylenetetracarboxylic dianhydrideVat Grey BG

Raw materials

Acenaphthene

1,8-Naphthalic anhydrideSupplier

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Beijing dtftchem Technology Co., Ltd.
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010-60275820 13031183356
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