2-Ethyl 5-methyl 3-methyl-1H-indole-2,5-dicarboxylate CAS 66552-40-7

Purity 97%+In StockPharmaceutical Standards
CAS No.66552-40-7
Molecular FormulaC14H15NO4
Molecular Weight261.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Ethyl 5-methyl 3-methyl-1H-indole-2,5-dicarboxylate CAS 66552-40-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 261.27 g/mol gives 2-Ethyl 5-methyl 3-methyl-1H-indole-2,5-dicarboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Ethyl 5-methyl 3-methyl-1H-indole-2,5-dicarboxylate (CAS 66552-40-7), molecular formula C14H15NO4 and molecular weight 261.27 g/mol, is a CATO reference standard with documented purity and traceability.

2-Ethyl 5-methyl 3-methyl-1H-indole-2,5-dicarboxylate (C14H15NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

CATO manufactures 2-Ethyl 5-methyl 3-methyl-1H-indole-2,5-dicarboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC14H15NO4
Molecular Weight261.27 g/mol
AppearancePale yellow to yellow crystalline powder
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; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976
Nitrogen Atoms1

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