1-Chloronaphthalene CAS 90-13-1

Purity >85%In StockPharmaceutical Standards
CAS No.90-13-1
Molecular FormulaC10H7Cl
Molecular Weight162.62 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Chloronaphthalene CAS 90-13-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 162.62 g/mol gives 1-Chloronaphthalene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-Chloronaphthalene (CAS 90-13-1) is a high-purity analytical reference standard with the molecular formula C10H7Cl and a molecular weight of 162.62 g/mol.

1-Chloronaphthalene (C10H7Cl) contains chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC10H7Cl
Molecular Weight162.62 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity>85%
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentCl-containing

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