3-(2-Oxo-2,3-dihydro-1H-indol-3-yl)propanoic acid CAS 2971-17-7

Purity 97%+In StockPharmaceutical Standards
CAS No.2971-17-7
Molecular FormulaC11H11NO3
Molecular Weight205.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(2-Oxo-2,3-dihydro-1H-indol-3-yl)propanoic acid CAS 2971-17-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 205.21 g/mol gives 3-(2-Oxo-2,3-dihydro-1H-indol-3-yl)propanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-(2-Oxo-2,3-dihydro-1H-indol-3-yl)propanoic acid (CAS 2971-17-7), molecular formula C11H11NO3 and molecular weight 205.21 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H11NO3, 3-(2-Oxo-2,3-dihydro-1H-indol-3-yl)propanoic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 205.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 3-(2-Oxo-2,3-dihydro-1H-indol-3-yl)propanoic 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 FormulaC11H11NO3
Molecular Weight205.21 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms1

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