Rel-(2R,3S)-2-((tert-butoxycarbonyl)amino)-3-hydroxy-4,4-dimethylpentanoic acid CAS 1292765-21-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1292765-21-9
Molecular FormulaC12H23NO5
Molecular Weight261.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Rel-(2R,3S)-2-((tert-butoxycarbonyl)amino)-3-hydroxy-4,4-dimethylpentanoic acid CAS 1292765-21-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 261.31 g/mol gives Rel-(2R,3S)-2-((tert-butoxycarbonyl)amino)-3-hydroxy-4,4-dimethylpentanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Rel-(2R,3S)-2-((tert-butoxycarbonyl)amino)-3-hydroxy-4,4-dimethylpentanoic acid (CAS 1292765-21-9) is a high-purity analytical reference standard with the molecular formula C12H23NO5 and a molecular weight of 261.31 g/mol.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Rel-(2R,3S)-2-((tert-butoxycarbonyl)amino)-3-hydroxy-4,4-dimethylpentanoic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 261.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Rel-(2R,3S)-2-((tert-butoxycarbonyl)amino)-3-hydroxy-4,4-dimethylpentanoic acid 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 FormulaC12H23NO5
Molecular Weight261.31 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1990
Nitrogen Atoms1

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