2-Amino-4-fluoro-5-nitrobenzoic acid CAS 1194097-41-0
| CAS No. | 1194097-41-0 |
| Molecular Formula | C7H5FN2O4 |
| Molecular Weight | 200.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Amino-4-fluoro-5-nitrobenzoic acid (CAS 1194097-41-0), molecular formula C7H5FN2O4 and molecular weight 200.12 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5FN2O4, 2-Amino-4-fluoro-5-nitrobenzoic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 200.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H5FN2O4 |
| Molecular Weight | 200.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 2-Amino-3-fluoro-5-nitrobenzoic acid (CAS 101336-14-5)
- 2-Amino-5-fluoro-4-nitrobenzoic acid (CAS 174566-51-9)
- 2-Amino-5-fluoro-3-nitrobenzoic acid (CAS 177960-62-2)
- 2-Amino-6-fluoro-3-nitrobenzoic acid (CAS 910123-26-1)
- 4-Amino-2-fluoro-5-nitro-benzoic acid (CAS 807327-07-7)
- 4-Amino-3-fluoro-5-nitrobenzoic acid (CAS 803700-08-5)
- 5-Amino-4-fluoro-2-nitrobenzoic acid (CAS 53994-61-9)
- 6-Amino-2,2-difluoro-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 575473-95-9)
Recommended Standards
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- 5-Methoxy-2-methyl-1H-benzimidazole hydrochloride (CAS 92799-40-1)
- Sulfide (CAS 18496-25-8)
- tert-Butyl 3-bromo-5-methoxybenzylcarbamate (CAS 1177558-66-5)
- Acipimox impurity 22 (CAS CATO-C4X-186622)
- 4,5-Dichloro-1-nitroanthracene-9,10-dione (CAS 128-96-1)
- 1-(4,4,4-Trifluoro-3-hydroxybutyl)-1H-pyrazole-5-carboxylic acid (CAS 2549160-47-4)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
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