4,5-Dichloro-1,8-naphthalic Anhydride CAS 7267-14-3

Purity 97%+In StockPharmaceutical Standards
CAS No.7267-14-3
Molecular FormulaC12H4Cl2O3
Molecular Weight267.06 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,5-Dichloro-1,8-naphthalic Anhydride CAS 7267-14-3 chemical structure

Description

CATO supplies 4,5-Dichloro-1,8-naphthalic Anhydride (CAS 7267-14-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C12H4Cl2O3. Molecular weight: 267.06 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC12H4Cl2O3
Molecular Weight267.06 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959
Halogen ContentCl-containing

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