6-Chloro-8-methyl-3,4-dihydro-2h-1-benzopyran-4-one CAS 76301-90-1

Purity 97%+In StockPharmaceutical Standards
CAS No.76301-90-1
Molecular FormulaC10H9ClO2
Molecular Weight196.63 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Chloro-8-methyl-3,4-dihydro-2h-1-benzopyran-4-one CAS 76301-90-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 196.63 g/mol gives 6-Chloro-8-methyl-3,4-dihydro-2h-1-benzopyran-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

6-Chloro-8-methyl-3,4-dihydro-2h-1-benzopyran-4-one (CAS 76301-90-1) is a high-purity analytical reference standard with the molecular formula C10H9ClO2 and a molecular weight of 196.63 g/mol.

Based on its molecular formula C10H9ClO2, 6-Chloro-8-methyl-3,4-dihydro-2h-1-benzopyran-4-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 196.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

CATO manufactures 6-Chloro-8-methyl-3,4-dihydro-2h-1-benzopyran-4-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC10H9ClO2
Molecular Weight196.63 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978
Halogen ContentCl-containing

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