Parameter | Specification |
---|---|
CAS Number | 1072-23-1 |
Molecular Formula | C5H5N3O2 |
Molecular Weight | 139.11 g/mol |
Appearance | Yellow crystalline powder |
Purity | ≥98% (HPLC) |
Storage Conditions | 2-8°C in airtight container |
Solubility | Soluble in DMSO, methanol; slightly soluble in water |
Compound | Nitration Position | Reactivity | Pharma Applications | Stability |
---|---|---|---|---|
4-Nitro-pyridin-3-ylamine | 4-NO₂, 3-NH₂ | High | Antibiotic intermediates | Stable under inert gas |
2-Nitro-pyridin-4-amine | 2-NO₂, 4-NH₂ | Moderate | Agrochemicals | Light-sensitive |
5-Nitro-pyridin-2-amine | 5-NO₂, 2-NH₂ | Low | Dyes | Hygroscopic |
Used in Step 3 of gyrase inhibitor production under nitrogen atmosphere at 60°C, achieving 82% yield when reacted with ethyl chloroformate.
Employed as directing group in Pd-catalyzed C-H activation reactions (0.5 mol% catalyst loading, DMF solvent, 12h reaction time).
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