(R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-3-yl)acetic acid CAS 1217774-71-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1217774-71-4
Molecular FormulaC21H17NO4S
Molecular Weight379.43 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-3-yl)acetic acid CAS 1217774-71-4 chemical structure

Description

(R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-3-yl)acetic acid (CAS 1217774-71-4), molecular formula C21H17NO4S and molecular weight 379.43 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C21H17NO4S, (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-3-yl)acetic acid contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 379.43 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC21H17NO4S
Molecular Weight379.43 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)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms1
Sulfur Atoms1

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