3-Fluoro-4-nitropyridine hydrate CAS 1881296-08-7
| CAS No. | 1881296-08-7 |
| Molecular Formula | C5H3FN2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Fluoro-4-nitropyridine hydrate is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Fluoro-4-nitropyridine hydrate (CAS 1881296-08-7), molecular formula C5H3FN2O2H2O and molecular weight 160.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Fluoro-4-nitropyridine hydrate (C5H3FN2O2H2O) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 160.10 g/mol, it falls into the medium-molecular-weight range. 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 | C5H3FN2O2 H2O |
| Molecular Weight | 160.10 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluoro Standards
- 4-[(2-Fluoro-4-nitrophenoxy)methyl]-1-methylpiperidine (CAS 1000052-54-9)
- 3-Fluoro-4-((1-methylpiperidin-4-yl)methoxy)aniline (CAS 1000053-56-4)
- 2-Fluoro-5-iodo-4-methoxybenzoic acid (CAS 1000162-78-6)
- Ethyl 4-fluoro-3-ethoxybenzoate (CAS 1000207-63-5)
- 6-fluoro-4-iodo-1H-benzo[d]imidazole (CAS 1000308-33-7)
- 2-Fluoro-3-hydroxybenzonitrile (CAS 1000339-24-1)
- 1-(5-Fluoro-2-methylphenyl)pyrrolidine (CAS 1000339-32-1)
- 3-Fluoro-2-nitrobenzoic Acid (CAS 1000339-51-4)
Recommended Standards
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- (S)-Azepan-3-amine (CAS 107885-67-6)
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- 3-cyclopropyl-[1,2]oxazolo[5,4-b]pyridine-5-sulfonyl chloride (CAS 1423024-24-1)
- 2-Propenoic acid, 2-methyl-, dodecyl ester, polymer with butyl 2-propenoate and (1-methylethenyl)benzene (CAS 69898-54-0)
- 2-Methoxy-5-(pentafluoro-lambda6-sulfanyl)benzenesulfonyl chloride (CAS 1706447-05-3)
- N-[2-(Pentyloxy)benzyl]-2-propanamine (CAS 1040683-40-6)
- (E)-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}({1-[2-(4-methoxyphenyl)cyclopropyl]ethylidene})amine (CAS 341966-79-8)
- 2-Acetyl-10-(3-chloropropyl)phenothiazine (CAS 39481-55-5)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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