2-Hydroxy-4-Nitroaniline CAS 121-88-0

Purity >95%In StockPharmaceutical Standards
CAS No.121-88-0
Molecular FormulaC6H6N2O3
Molecular Weight154.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Hydroxy-4-Nitroaniline CAS 121-88-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 154.12 g/mol gives 2-Hydroxy-4-Nitroaniline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 2-Hydroxy-4-Nitroaniline (CAS 121-88-0), a certified reference material (molecular formula C6H6N2O3, MW 154.12 g/mol) for analytical method development and quality control.

Based on its molecular formula C6H6N2O3, 2-Hydroxy-4-Nitroaniline 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 154.12 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.

CATO manufactures 2-Hydroxy-4-Nitroaniline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC6H6N2O3
Molecular Weight154.12 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms2

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