5-Fluoro-2-naphthoic acid CAS 70631-82-2
| CAS No. | 70631-82-2 |
| Molecular Formula | C11H7FO2 |
| Molecular Weight | 190.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 190.17 g/mol gives 5-Fluoro-2-naphthoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Fluoro-2-naphthoic acid (CAS 70631-82-2) is a high-purity analytical reference standard with the molecular formula C11H7FO2 and a molecular weight of 190.17 g/mol.
Structurally, 5-Fluoro-2-naphthoic acid (C11H7FO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. 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 190.17 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 5-Fluoro-2-naphthoic 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 | C11H7FO2 |
| Molecular Weight | 190.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1977 |
| Halogen Content | F-containing |
Related Fluoro Standards
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- 5-FLUORO-6-METHOXY-1H-INDOLE-3-CARBONITRILE (CAS 1211593-82-6)
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Recommended Standards
- 5-Fluoro-1-naphthalenecarboxylic acid, 97% (CAS 573-04-6)
- 6-(2-Fluorophenyl)-2,3-dihydropyridazin-3-one (CAS 66549-62-0)
- 5-(Methylsulfonyl)furan-2-carboxylic Acid (CAS 23423-91-8)
- 6-(3-Fluorophenyl)pyridazin-3-ol (CAS 66549-07-3)
- 2-[2-bromo-4-(difluoromethoxy)-5-methoxyphenyl]acetonitrile (CAS 1197654-97-9)
- Ethyl 4-chloro-7-methoxyquinazoline-2-carboxylate (CAS 1189107-22-9)
- 2-Methoxy-5-phenylmethanesulfonyl-phenylamine (CAS 2815-50-1)
- (2-Chloro-6-fluorobenzyl)(3,4-difluorophenyl)sulfane (CAS 1443353-19-2)
- 3,3-Dimethyl-1-hexene (CAS 3404-77-1)
- Avatrombopag Impurity 37 (CAS 17766-28-8)
- 1-Amino-2-methyl-2-phenylpropane (CAS 21404-88-6)
- 3,5-Dichloro-4-(difluoromethoxy)benzylamine (CAS 1803714-14-8)
- Ethyl 2-benzyl-3-hydroxypropanoate (CAS 107749-65-5)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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