3,5-Dimethyl-2-nitrobenzoic acid CAS 52095-18-8

Purity 97%+In StockPharmaceutical Standards
CAS No.52095-18-8
Molecular FormulaC9H9NO4
Molecular Weight195.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,5-Dimethyl-2-nitrobenzoic acid CAS 52095-18-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 195.17 g/mol gives 3,5-Dimethyl-2-nitrobenzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,5-Dimethyl-2-nitrobenzoic acid (CAS 52095-18-8), molecular formula C9H9NO4 and molecular weight 195.17 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C9H9NO4, 3,5-Dimethyl-2-nitrobenzoic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 195.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC9H9NO4
Molecular Weight195.17 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1971
Nitrogen Atoms1

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