3-Fluoro-4-n-octyloxybenzoic Acid CAS 326-78-3
| CAS No. | 326-78-3 |
| Molecular Formula | C15H21FO3 |
| Molecular Weight | 268.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Fluoro-4-n-octyloxybenzoic Acid.
3-Fluoro-4-n-octyloxybenzoic Acid (CAS 326-78-3), molecular formula C15H21FO3 and molecular weight 268.32 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 3-Fluoro-4-n-octyloxybenzoic Acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 268.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C15H21FO3 |
| Molecular Weight | 268.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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 |
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Recommended Standards
- 3,6-Bis(3,5-dimethyl-1H-pyrazol-1-yl)-1,2,4,5-tetrazine (CAS 30169-25-6)
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- 3,6-Bis(2,4-dimethyl-1-pyrrolyl)-1,2,4,5-tetrazine (CAS 1551432-13-3)
- 4-(4-Benzyl-5-methyl-4H-1,2,4-triazol-3-yl)-1-methyl-1H-pyrazol-5-amine (CAS 329901-22-6)
- 4-[(6-Methylpyrazin-2-yl)oxy]benzylamine (CAS 926921-67-7)
- 4-Hydroxybutyryl-L-carnitine (CAS 107870-81-5)
- 6-Chloro-8-fluoroquinazoline-2,4-diamine (CAS 143879-76-9)
- 2-Methyl-3-(4’-fluorobenzoyl)indole (CAS 26206-00-8)
- 1-(3-Methoxybenzyl)cyclobutane-1-carboxylic acid (CAS 1439902-25-6)
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- 3-Butyl-1-methyl-1H-imidazol-3-ium methyl sulfate (CAS 401788-98-5)
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- 1-Butyl-3-phenylthiourea (CAS 6336-01-2)
- D-Lys16-Tirzepatide (CAS CATO-CPTD788918)
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