2-Methyl-3-phenyl-2-cyclopropene-1-carboxylic acid CAS 18826-56-7

Purity 97%+In StockPharmaceutical Standards
CAS No.18826-56-7
Molecular FormulaC11H10O2
Molecular Weight174.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Methyl-3-phenyl-2-cyclopropene-1-carboxylic acid CAS 18826-56-7 chemical structure

Description

The occurrence of 2-Methyl-3-phenyl-2-cyclopropene-1-carboxylic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Methyl-3-phenyl-2-cyclopropene-1-carboxylic acid (CAS 18826-56-7) is a high-purity analytical reference standard with the molecular formula C11H10O2 and a molecular weight of 174.20 g/mol.

2-Methyl-3-phenyl-2-cyclopropene-1-carboxylic acid (C11H10O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC11H10O2
Molecular Weight174.20 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, 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.)1962

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