2-Propenoic acid, 2-methyl-, polymer with ethenylbenzene, ethyl 2-propenoate and methyl 2-methyl-2-propenoate CAS 28263-96-9

Purity 97%+In StockPharmaceutical Standards
CAS No.28263-96-9
Molecular FormulaC8H8
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Propenoic acid, 2-methyl-, polymer with ethenylbenzene, ethyl 2-propenoate and methyl 2-methyl-2-propenoate CAS 28263-96-9 chemical structure

Description

The occurrence of 2-Propenoic acid, 2-methyl-, polymer with ethenylbenzene, ethyl 2-propenoate and methyl 2-methyl-2-propenoate is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Propenoic acid, 2-methyl-, polymer with ethenylbenzene, ethyl 2-propenoate and methyl 2-methyl-2-propenoate (CAS 28263-96-9) is a high-purity analytical reference standard with the molecular formula C8H8C5H8O2C4H6O2 and a molecular weight of 290.36 g/mol.

The molecular framework of 2-Propenoic acid, 2-methyl-, polymer with ethenylbenzene, ethyl 2-propenoate and methyl 2-methyl-2-propenoate (C8H8C5H8O2C4H6O2) is characterized by a flavonoid core, 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 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.

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 FormulaC8H8 2*C5H8O2 C4H6O2
Molecular Weight290.36 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 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.)1965

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