2-Octadecyl-1H-indole-5-carboxylic Acid CAS 81364-78-5

Purity 97%+In StockPharmaceutical Standards
CAS No.81364-78-5
Molecular FormulaC27H43NO2
Molecular Weight413.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Octadecyl-1H-indole-5-carboxylic Acid CAS 81364-78-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 413.64 g/mol gives 2-Octadecyl-1H-indole-5-carboxylic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Octadecyl-1H-indole-5-carboxylic Acid (CAS 81364-78-5) is a high-purity analytical reference standard with the molecular formula C27H43NO2 and a molecular weight of 413.64 g/mol.

The molecular framework of 2-Octadecyl-1H-indole-5-carboxylic Acid (C27H43NO2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

As a certified reference material (CRM), 2-Octadecyl-1H-indole-5-carboxylic 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 FormulaC27H43NO2
Molecular Weight413.64 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1980
Nitrogen Atoms1

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