Methyl 7-(5-oxo-3-((tetrahydro-2H-pyran-2-yl)oxy)cyclopent-1-en-1-yl)hept-5-enoate CAS 42542-01-8

Purity 97%+In StockPharmaceutical Standards
CAS No.42542-01-8
Molecular FormulaC18H26O5
Molecular Weight322.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 7-(5-oxo-3-((tetrahydro-2H-pyran-2-yl)oxy)cyclopent-1-en-1-yl)hept-5-enoate CAS 42542-01-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 322.40 g/mol gives Methyl 7-(5-oxo-3-((tetrahydro-2H-pyran-2-yl)oxy)cyclopent-1-en-1-yl)hept-5-enoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Methyl 7-(5-oxo-3-((tetrahydro-2H-pyran-2-yl)oxy)cyclopent-1-en-1-yl)hept-5-enoate (CAS 42542-01-8) is a high-purity analytical reference standard with the molecular formula C18H26O5 and a molecular weight of 322.40 g/mol.

Owing to a steroid core, a hydroxyl group, an ether linkage, Methyl 7-(5-oxo-3-((tetrahydro-2H-pyran-2-yl)oxy)cyclopent-1-en-1-yl)hept-5-enoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 322.40 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 FormulaC18H26O5
Molecular Weight322.40 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.)1969

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