5-Methoxybenzo[d]isoxazole CAS 39835-06-8

Purity 97%+In StockPharmaceutical Standards
CAS No.39835-06-8
Molecular FormulaC8H7NO2
Molecular Weight149.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methoxybenzo[d]isoxazole CAS 39835-06-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 149.15 g/mol gives 5-Methoxybenzo[d]isoxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Methoxybenzo[d]isoxazole (CAS 39835-06-8), molecular formula C8H7NO2 and molecular weight 149.15 g/mol, is a CATO reference standard with documented purity and traceability.

5-Methoxybenzo[d]isoxazole (C8H7NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; 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.

As a certified reference material (CRM), 5-Methoxybenzo[d]isoxazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC8H7NO2
Molecular Weight149.15 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968
Nitrogen Atoms1

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