4-Fluoro-2-nitro-5-(1h-pyrazol-1-yl)aniline CAS 1014020-15-5
| CAS No. | 1014020-15-5 |
| Molecular Formula | C9H7FN4O2 |
| Molecular Weight | 222.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Fluoro-2-nitro-5-(1h-pyrazol-1-yl)aniline (CAS 1014020-15-5), molecular formula C9H7FN4O2 and molecular weight 222.18 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Fluoro-2-nitro-5-(1h-pyrazol-1-yl)aniline (C9H7FN4O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 222.18 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 4-Fluoro-2-nitro-5-(1h-pyrazol-1-yl)aniline 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 Formula | C9H7FN4O2 |
| Molecular Weight | 222.18 g/mol |
| Appearance | Pale yellow to 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 DMSO, DMF, methanol |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
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- 6-Bromospiro[3H-indene-2,4'-cyclohexane]-1,1'-dione (CAS 1245514-96-8)
- 4-(Piperazin-1-ylsulfonyl)morpholine (CAS 5625-93-4)
- N-Boc-2-aminopropanal (CAS 114857-00-0)
- 1-(2,2-difluoroethyl)-N-(3-methoxybenzyl)-1H-pyrazol-4-amine (CAS 1172821-54-3)
- 3-{bicyclo[2.2.1]heptan-2-yl}propan-1-amine, mixture of diastereomers (CAS 1560125-40-7)
- 2-Methyl-5-(1,2,3-thiadiazol-4-yl)phenylamine (CAS 947013-65-2)
- Tirzepatide Impurity 61 (CAS CATO-C4X-324061)
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