2-Fluoro-3-hydroxybenzoic Acid CAS 91658-92-3
| CAS No. | 91658-92-3 |
| Molecular Formula | C7H5FO3 |
| Molecular Weight | 156.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Fluoro-3-hydroxybenzoic Acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-Fluoro-3-hydroxybenzoic Acid (CAS 91658-92-3), a certified reference material (molecular formula C7H5FO3, MW 156.11 g/mol) for analytical method development and quality control.
The molecular framework of 2-Fluoro-3-hydroxybenzoic Acid (C7H5FO3) is characterized by 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 polarity and ionization state of its functional 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.
As a certified reference material (CRM), 2-Fluoro-3-hydroxybenzoic Acid 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 | C7H5FO3 |
| Molecular Weight | 156.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; 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.) | 1983 |
| Halogen Content | F-containing |
Related Fluoro Standards
- 5-Fluoro-2-methyl-3-nitropyridine (CAS 1162674-71-6)
- 5-Fluoro-3-methyl-2-nitropyridine (CAS 1211541-84-2)
- 5-Fluoro-2,4-dihydroxybenzaldehyde (CAS 1251950-91-0)
- 5-Fluoro-6-methylpyrazine-2-carboxylic acid (CAS 1393570-34-7)
- 2-Fluoro-6-imino-1,6-dihydropyridine-3-carboxylic acid (CAS 1393584-80-9)
- 3-Fluoro-N-hydroxyisonicotinamide (CAS 1492231-04-5)
- 2-Fluoro-2-(pyrimidin-5-yl)acetic acid (CAS 1499010-74-0)
- 5-Fluoro-N-hydroxypyridine-3-carboxamide (CAS 1582-86-1)
Recommended Standards
- 2-Fluoro-3,4-dihydroxybenzaldehyde (CAS 61338-95-2)
- 2-Fluoro-3-nitroaniline (CAS 21397-11-5)
- 2-Amino-N-(2,2,2-trifluoroethyl)acetamide (CAS 359821-38-8)
- 2-Fluoro-4,5-dihydroxybenzaldehyde (CAS 71144-36-0)
- 3,8-Phenanthroline (CAS 229-70-9)
- 4-(2-(Trifluoromethyl)benzyl)tetrahydro-2h-pyran-4-carboxylic acid (CAS 1385696-83-2)
- Tributyl(4-phenoxyphenyl)stannane (CAS 99128-02-6)
- 2-(Chloromethyl)-6-(trifluoromethoxy)benzo[d]oxazole (CAS 1806392-74-4)
- 2-Bromo-N-(2-isobutoxyphenyl)acetamide (CAS 1138442-23-5)
- 4-Allyl-2-methoxyphenyl cinnamate (CAS 532-08-1)
- 3,4-Bis(trifluoromethyl)benzonitrile (CAS 129604-24-6)
- 2-Bromo-5-chlorothiazolo[5,4-b]pyridine (CAS 1198759-26-0)
- 1-(6-Iodo-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-indol-3-yl)-2,2-dimethylpropan-1-one (CAS 2390149-42-3)
- Glucagon (19-29) (human, rat, porcine) (CAS 64790-15-4)
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