3-methoxy-1,2-dihydropyrrol-5-one CAS 69778-83-2

Purity 97%+In StockPharmaceutical Standards
CAS No.69778-83-2
Molecular FormulaC5H7NO2
Molecular Weight113.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-methoxy-1,2-dihydropyrrol-5-one CAS 69778-83-2 chemical structure

Description

The occurrence of 3-methoxy-1,2-dihydropyrrol-5-one is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-methoxy-1,2-dihydropyrrol-5-one (CAS 69778-83-2), molecular formula C5H7NO2 and molecular weight 113.11 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3-methoxy-1,2-dihydropyrrol-5-one (C5H7NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 113.11 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC5H7NO2
Molecular Weight113.11 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1976
Nitrogen Atoms1

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