(E)-7-(4-butyl-2,5-dioxooctahydro-1H-inden-1-yl)hept-5-enoic acid CAS 74158-09-1

Purity 97%+In StockPharmaceutical Standards
CAS No.74158-09-1
Molecular FormulaC20H30O4
Molecular Weight334.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-7-(4-butyl-2,5-dioxooctahydro-1H-inden-1-yl)hept-5-enoic acid CAS 74158-09-1 chemical structure

Description

The occurrence of (E)-7-(4-butyl-2,5-dioxooctahydro-1H-inden-1-yl)hept-5-enoic acid is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(E)-7-(4-butyl-2,5-dioxooctahydro-1H-inden-1-yl)hept-5-enoic acid (CAS 74158-09-1) is a high-purity analytical reference standard with the molecular formula C20H30O4 and a molecular weight of 334.45 g/mol.

(E)-7-(4-butyl-2,5-dioxooctahydro-1H-inden-1-yl)hept-5-enoic acid (C20H30O4) contains a steroid core, a hydroxyl group, an ether linkage. 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 FormulaC20H30O4
Molecular Weight334.45 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978

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