Propanoic acid, 2-methyl-, (3aR,4S,7aR)-2,3,3a,4,7,7a-hexahydro-5-[(1S)-4-hydroxy-1-methylbutyl]-6-methyl-3-methylene-2-oxo-4-benzofuranyl ester CAS 1259933-02-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1259933-02-2
Molecular FormulaC19H28O5
Molecular Weight336.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Propanoic acid, 2-methyl-, (3aR,4S,7aR)-2,3,3a,4,7,7a-hexahydro-5-[(1S)-4-hydroxy-1-methylbutyl]-6-methyl-3-methylene-2-oxo-4-benzofuranyl ester CAS 1259933-02-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 336.42 g/mol gives Propanoic acid, 2-methyl-, (3aR,4S,7aR)-2,3,3a,4,7,7a-hexahydro-5-[(1S)-4-hydroxy-1-methylbutyl]-6-methyl-3-methylene-2-oxo-4-benzofuranyl ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Propanoic acid, 2-methyl-, (3aR,4S,7aR)-2,3,3a,4,7,7a-hexahydro-5-[(1S)-4-hydroxy-1-methylbutyl]-6-methyl-3-methylene-2-oxo-4-benzofuranyl ester (CAS 1259933-02-2), a certified reference material (molecular formula C19H28O5, MW 336.42 g/mol) for analytical method development and quality control.

Owing to a steroid core, a hydroxyl group, an ether linkage, Propanoic acid, 2-methyl-, (3aR,4S,7aR)-2,3,3a,4,7,7a-hexahydro-5-[(1S)-4-hydroxy-1-methylbutyl]-6-methyl-3-methylene-2-oxo-4-benzofuranyl ester is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 336.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC19H28O5
Molecular Weight336.42 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, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990

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