2-Hydroxy-3-nitrobenzonitrile CAS 28177-79-9

Purity 97%+In StockPharmaceutical Standards
CAS No.28177-79-9
Molecular FormulaC7H4N2O3
Molecular Weight164.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Hydroxy-3-nitrobenzonitrile CAS 28177-79-9 chemical structure

Description

The occurrence of 2-Hydroxy-3-nitrobenzonitrile 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.

2-Hydroxy-3-nitrobenzonitrile (CAS 28177-79-9), molecular formula C7H4N2O3 and molecular weight 164.12 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, 2-Hydroxy-3-nitrobenzonitrile is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 164.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), 2-Hydroxy-3-nitrobenzonitrile meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC7H4N2O3
Molecular Weight164.12 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, water
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.)1965
Nitrogen Atoms2

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