5-(Trichloromethyl)isoxazole CAS 88283-10-7

Purity 97%+In StockPharmaceutical Standards
CAS No.88283-10-7
Molecular FormulaC4H2Cl3NO
Molecular Weight186.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(Trichloromethyl)isoxazole CAS 88283-10-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 186.42 g/mol gives 5-(Trichloromethyl)isoxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-(Trichloromethyl)isoxazole (CAS 88283-10-7), molecular formula C4H2Cl3NO and molecular weight 186.42 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5-(Trichloromethyl)isoxazole (C4H2Cl3NO) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 186.42 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 5-(Trichloromethyl)isoxazole 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 FormulaC4H2Cl3NO
Molecular Weight186.42 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1982
Halogen ContentCl-containing
Nitrogen Atoms1

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