3-Methoxy-N-[(E)-2-(3-methyl-4-nitro-1,2-oxazol-5-yl)ethenyl]aniline CAS 240799-45-5

Purity 97%+In StockPharmaceutical Standards
CAS No.240799-45-5
Molecular FormulaC13H13N3O4
Molecular Weight275.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Methoxy-N-[(E)-2-(3-methyl-4-nitro-1,2-oxazol-5-yl)ethenyl]aniline CAS 240799-45-5 chemical structure

Description

The occurrence of 3-Methoxy-N-[(E)-2-(3-methyl-4-nitro-1,2-oxazol-5-yl)ethenyl]aniline is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-Methoxy-N-[(E)-2-(3-methyl-4-nitro-1,2-oxazol-5-yl)ethenyl]aniline (CAS 240799-45-5) is a high-purity analytical reference standard with the molecular formula C13H13N3O4 and a molecular weight of 275.26 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 3-Methoxy-N-[(E)-2-(3-methyl-4-nitro-1,2-oxazol-5-yl)ethenyl]aniline is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 275.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC13H13N3O4
Molecular Weight275.26 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms3

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