3-Hydroxy-2-nitrobenzamide CAS 855262-82-7
| CAS No. | 855262-82-7 |
| Molecular Formula | C7H6N2O4 |
| Molecular Weight | 182.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Hydroxy-2-nitrobenzamide (CAS 855262-82-7), a certified reference material (molecular formula C7H6N2O4, MW 182.13 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 3-Hydroxy-2-nitrobenzamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 182.13 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.
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 Formula | C7H6N2O4 |
| Molecular Weight | 182.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Hydroxy Standards
- 1-(2-Hydroxy-5-nitropyridin-3-yl)ethanone (CAS 1092286-39-9)
- 4-Hydroxy-2-nitrobenzamide (CAS 1261617-02-0)
- 3-Hydroxy-4-nitrobenzamide (CAS 182932-64-5)
- 2-Hydroxy-3-nitrobenzamide (CAS 2912-76-7)
- 2-Hydroxy-4-nitrobenzamide (CAS 2912-77-8)
- 2-Hydroxy-5-nitrobenzamide (CAS 2912-78-9)
- 2-Hydroxy-6-nitrobenzamide (CAS 725714-75-0)
- 4-Hydroxy-3-nitrobenzaldehyde oxime (CAS 26879-83-4)
Recommended Standards
- 3-Amino-5-nitrobenzoic Acid (CAS 618-84-8)
- 3-Methyl-4-nitro-2-pyridinecarboxylic acid (CAS 30235-17-7)
- 3-Amino-4-nitrobenzoic acid (CAS 6968-22-5)
- 4,6-Difluoro-1H-indazole-3-carbaldehyde (CAS 887567-80-8)
- 1-(3-Chloro-4-methoxyphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264042-82-1)
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- 8-Thioxo-8,9-dihydro-1H-purin-6(7H)-one (CAS 6305-94-8)
- (2-(Trifluoromethyl)thiazol-5-yl)methanol (CAS 131748-97-5)
- N-((S)-1-((S)-2,2-Dimethyl-1,3-dioxolan-4-yl)-2-((4-(4-(trifluoromethoxy)phenoxy)phenyl)sulfonyl)ethyl)-N-hydroxyformamide (CAS 286845-00-9)
- (S)-2-((S)-2-((S)-2-Amino-4-methylpentanamido)-3-(1H-imidazol-4-yl)propanamido)-4-methylpentanoic acid (CAS 126828-33-9)
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- 6-(4-Bromophenyl)dihydro-2H-pyran-3(4H)-one (CAS 1476853-03-8)
- 1-(Difluoromethyl)-6-methyl-1H-indole (CAS 1597374-77-0)
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