Methyl 3-carbamoyl-4-nitrobenzoate CAS 76143-34-5

Purity 97%+In StockPharmaceutical Standards
CAS No.76143-34-5
Molecular FormulaC9H8N2O5
Molecular Weight224.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 3-carbamoyl-4-nitrobenzoate CAS 76143-34-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 224.17 g/mol gives Methyl 3-carbamoyl-4-nitrobenzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Methyl 3-carbamoyl-4-nitrobenzoate (CAS 76143-34-5), molecular formula C9H8N2O5 and molecular weight 224.17 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Methyl 3-carbamoyl-4-nitrobenzoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 224.17 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.

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 FormulaC9H8N2O5
Molecular Weight224.17 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978
Nitrogen Atoms2

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Why CATO?