4-Pentylbenzoic Acid CAS 26311-45-5
| CAS No. | 26311-45-5 |
| Molecular Formula | C12H16O2 |
| Molecular Weight | 192.25 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 4-Pentylbenzoic Acid.
4-Pentylbenzoic Acid (CAS 26311-45-5), molecular formula C12H16O2 and molecular weight 192.25 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Pentylbenzoic Acid (C12H16O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures 4-Pentylbenzoic Acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H16O2 |
| Molecular Weight | 192.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
Recommended Standards
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- 4-tert-butyl-2-methylbenzoic acid (CAS 33691-85-9)
- 2-(4-Chlorophenyl)-2-oxoethyl 2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]propanoate (CAS 303148-46-1)
- Lexacalcitol (CAS 131875-08-6)
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- 3-(5,5-Dimethyl-1,3-dioxan-2-yl)-5-fluoro-4-hydroxybenzoic acid (CAS 2490493-85-9)
- 2-Phenoxyethyl 7-(3,4-dimethoxyphenyl)-4-(3-hydroxy-4-methoxyphenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 494195-55-0)
- 5-(1-Chloroethyl)-3-(4h-1,2,4-triazol-3-yl)-1,2,4-oxadiazole (CAS 1038358-79-0)
- 2-([1,1'-Biphenyl]-4-yl)-1-(4-methoxypiperidin-1-yl)ethan-1-one (CAS 1235080-57-5)
- 5-(Difluoromethyl)-2-fluoro-3-(hydroxymethyl)isonicotinonitrile (CAS 1806844-45-0)
- (2S,3S)-3-((tert-Butoxycarbonyl)amino)-2-methyl-3-phenylpropanoic acid (CAS 926308-22-7)
- Myristoyl Pentapeptide -4 acetate (CAS 959610-30-1(free base))
Why CATO?
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