2-(4-Carboxyphenoxy)benzoic Acid CAS 37407-16-2
| CAS No. | 37407-16-2 |
| Molecular Formula | C14H10O5 |
| Molecular Weight | 258.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(4-Carboxyphenoxy)benzoic Acid (CAS 37407-16-2) is a high-purity analytical reference standard with the molecular formula C14H10O5 and a molecular weight of 258.23 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 2-(4-Carboxyphenoxy)benzoic Acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 258.23 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).
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 | C14H10O5 |
| Molecular Weight | 258.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
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- 1,6-Bis(4-carboxyphenoxy)hexane (CAS 74774-53-1)
Recommended Standards
- 2-(3,4-Dihydroxyphenyl)benzo[d][1,3]dioxole-5-carbaldehyde (CAS 213903-67-4)
- 2,2'-((6-Amino-5-nitropyrimidine-2,4-diyl)bis(azanediyl))bis(ethan-1-ol) (CAS 674307-77-8)
- 2-(2,5-Dihydroxybenzoyl)benzoic acid (CAS 6272-39-5)
- 2,6,7-Trihydroxy-9-methyl-3H-xanthen-3-one (CAS 5407-46-5)
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- Schisantherin E (CAS 64917-83-5)
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- 1-(2-Bromoethyl)-3-fluoro-5-(trifluoromethyl)benzene (CAS 955036-79-0)
- Prosaikogenin A (CAS 99365-21-6)
- 2-(4-(4-Bromophenyl)-1H-pyrazol-1-yl)acetic acid (CAS 1268003-18-4)
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