Identifications:
Name: 1,8-Naphthalic anhydride
Other name: Naphthalene-1,8-dicarboxylic anhydride;1,8-Naphthalenedicarboxylic anhydride
CAS: 81-84-5
EC-No：201-380-2
MF: C12H6O3
MW: 198.17
Melting point: 267-269 ℃
Appearance: Pale yellow crystals
Purity: 98%min.(HPLC)
Package: 100g, 1Kg, 5Kg, Bulk package
Availability: in stock
Annual production: 4000 tons/ year
Applications: For pharmaceutical, pesticide and chemical intermediates.
1,8-Naphthalic anhydride is an important raw material for the synthesis of perylene dyes, pigments and fluorescent brighteners.The needle-like crystals are precipitated in the ethanol, and the diamond crystals are precipitated in the acetic acid.
1,8-Naphthalic anhydride is also named as Naphthalene-1,8-dicarboxylic anhydride;1,8-Naphthalenedicarboxylic anhydride.In the room temperature: soluble in hot acetic acid and alkali solution, slightly soluble in hot ethanol, insoluble in water ether and benzene.
1,8-Naphthalic anhydride has been supplying from UCHEM in large quantity with competitive price.