2-Fluoro-5-nitrobenzaldehyde CAS 27996-87-8
| CAS No. | 27996-87-8 |
| Molecular Formula | C7H4FNO3 |
| Molecular Weight | 169.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 169.11 g/mol gives 2-Fluoro-5-nitrobenzaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Fluoro-5-nitrobenzaldehyde (CAS 27996-87-8), molecular formula C7H4FNO3 and molecular weight 169.11 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Fluoro-5-nitrobenzaldehyde (C7H4FNO3) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H4FNO3 |
| Molecular Weight | 169.11 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.) | 1964 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluoro Standards
- 3-Fluoro-5-nitrobenzaldehyde (CAS 108159-96-2)
- 6-Fluoro-4-formylpicolinic acid (CAS 1288995-49-2)
- 5-Fluoro-4-formylpicolinic acid (CAS 1289040-31-8)
- 4-Fluoro-6-formylpicolinic acid (CAS 1289073-88-6)
- 5-Fluoro-4-formylnicotinic acid (CAS 1289102-69-7)
- 5-Fluoro-6-formylpicolinic acid (CAS 1289114-12-0)
- 2-Fluoro-3-formylisonicotinic acid (CAS 1289160-52-6)
- 3-Fluoro-4-formylpicolinic acid (CAS 1289207-80-2)
Recommended Standards
- 2-Fluoro-3-nitrobenzaldehyde (CAS 96516-29-9)
- 3-Fluoro-2-nitrobenzaldehyde (CAS 872366-63-7)
- 6-Fluoro-7-hydroxypyrazolo[1,5-a]pyrimidin-5(4H)-one (CAS 1610021-33-4)
- 4-Fluoro-2-nitrobenzaldehyde (CAS 2923-96-8)
- N-(5-Oxo-1-phenylpyrrolidin-3-yl)benzenesulfonamide (CAS 905683-17-2)
- 36750-88-6 3,3,3-Trifluoro-1-phenylpropane-1,2-dione hydrate MFCD00209621 (CAS 36750-88-6)
- 2-chloro-5-(6-chloro-1,3-benzothiazol-2-yl)aniline (CAS 1461714-56-6)
- 2,3-Dibromo-5-(difluoromethyl)-4-methoxypyridine (CAS 1805958-89-7)
- Tert-butyl 3-(4-chloro-6-methylpyrimidin-2-yl)piperidine-1-carboxylate (CAS 1701484-30-1)
- Milbemycin Oxime EP Impurity A (CAS 51596-11-3)
- 4-Chloro-6-(5-((2-morpholinoethyl)amino)benzo[d]isoxazol-3-yl)benzene-1,3-diol (CAS 1012788-65-6)
- (2,6-Dimethoxyphenyl)(oxazol-2-yl)methanone (CAS 898784-36-6)
- 1-(6-(Indolin-1-yl)-2-methylpyridin-3-yl)propan-1-one (CAS 1355177-29-5)
- Neuropeptide Y (22-36) (CAS 119019-65-7)
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