5-Fluoro-2-methoxybenzoic acid CAS 394-04-7
| CAS No. | 394-04-7 |
| Molecular Formula | C8H7FO3 |
| Molecular Weight | 170.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Fluoro-2-methoxybenzoic acid (CAS 394-04-7) is a high-purity analytical reference standard with the molecular formula C8H7FO3 and a molecular weight of 170.14 g/mol.
Based on its molecular formula C8H7FO3, 5-Fluoro-2-methoxybenzoic acid contains 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 170.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C8H7FO3 |
| Molecular Weight | 170.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Fluoro Standards
- 2-Fluoro-4-hydroxybenzohydrazide (CAS 1046156-01-7)
- 4-Fluoro-2-hydroxybenzohydrazide (CAS 1056954-60-9)
- 3-Fluoro-2-methoxybenzoic acid (CAS 106428-05-1)
- Methyl 3-Fluoro-5-hydroxybenzoate (CAS 1072004-32-0)
- Methyl 2-fluoro-5-hydroxybenzoate (CAS 1084801-91-1)
- 2-Fluoro-N-methyl-5-nitroaniline (CAS 110729-51-6)
- 1-(3-Fluoro-2,6-dihydroxyphenyl)ethanone (CAS 117902-14-4)
- 2-Fluoro-6-nitrobenzylamine (CAS 1193266-25-9)
Recommended Standards
- Methyl 5-Fluorosalicylate (CAS 391-92-4)
- 3-Fluoro-2-hydroxy-4-methyl-benzoic acid (CAS 1702914-15-5)
- methyl 4-fluoro-3-hydroxybenzoate (CAS 214822-96-5)
- 3-Fluoro-6-Methyl-2-nitroaniline (CAS 1393442-58-4)
- Methyl 5-(4-fluorophenyl)-1,2,4-oxadiazole-3-carboxylate (CAS 338960-42-2)
- Verazide (CAS 93-47-0)
- N-(3-Amino-2-methylphenyl)-3-propoxybenzamide (CAS 1020056-74-9)
- (4R)-2-(2,5-difluorophenyl)thiazolidine-4-carboxylic acid (CAS 1014081-92-5)
- 1-((4-Cyclohexylphenyl)sulfonyl)-4-methylpiperidine (CAS 431069-52-2)
- Memantine Related Compound G (CAS 33103-93-4)
- 1-(4-Chlorophenyl)-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 63695-48-7)
- 2-Methoxyacetamide (CAS 16332-06-2)
- 4-Methyl-N-(4-methylpentan-2-yl)aniline (CAS 1021010-58-1)
- Peptide 437 (CAS CATO-CPTD788437)
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