tert-butyl (4S)-4-hydroxyisoxazolidine-2-carboxylate CAS 878385-72-9

Purity 97%+In StockPharmaceutical Standards
CAS No.878385-72-9
Molecular FormulaC8H15NO4
Molecular Weight189.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

tert-butyl (4S)-4-hydroxyisoxazolidine-2-carboxylate CAS 878385-72-9 chemical structure

Description

tert-butyl (4S)-4-hydroxyisoxazolidine-2-carboxylate (CAS 878385-72-9) is a high-purity analytical reference standard with the molecular formula C8H15NO4 and a molecular weight of 189.21 g/mol.

Structurally, tert-butyl (4S)-4-hydroxyisoxazolidine-2-carboxylate (C8H15NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 189.21 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), tert-butyl (4S)-4-hydroxyisoxazolidine-2-carboxylate 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 FormulaC8H15NO4
Molecular Weight189.21 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1987
Nitrogen Atoms1

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