2-Hydroxy-4-phenylbenzoic acid CAS 4482-27-3
| CAS No. | 4482-27-3 |
| Molecular Formula | C13H10O3 |
| Molecular Weight | 214.22 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 2-Hydroxy-4-phenylbenzoic acid.
2-Hydroxy-4-phenylbenzoic acid (CAS 4482-27-3), molecular formula C13H10O3 and molecular weight 214.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H10O3, 2-Hydroxy-4-phenylbenzoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C13H10O3 |
| Molecular Weight | 214.22 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Hydroxy Standards
- 2-Hydroxy-[1,1'-biphenyl]-4-carboxylic Acid (CAS 106593-48-0)
- 2-Hydroxy-N-(pyridin-3-yl)benzamide (CAS 118623-71-5)
- 4'-Hydroxy-[1,1'-biphenyl]-3-carboxylic acid (CAS 121629-21-8)
- 122719-38-4 5-Hydroxy-2-amino-3-methylimidazo(4,5-f)quinoline 3H-Imidazo(4,5-f)quinolin-5-ol, 2-amino-3-methyl- 5-OH-IQ (CAS 122719-38-4)
- 4-Hydroxy-7-methoxy-6-methylquinoline-3-carbonitrile (CAS 1259017-79-2)
- 2-Hydroxy-n-(2-pyridinyl)benzamide (CAS 13563-04-7)
- 4-hydroxy-2-phenylbenzoic acid (CAS 155503-85-8)
- 3'-Hydroxy-[1,1'-biphenyl]-3-carboxylic acid (CAS 171047-01-1)
Recommended Standards
- 2-Hydroxy-1,2-di(pyridin-4-yl)ethan-1-one (CAS 91973-64-7)
- 2-Hydroxyamino-3-methyl-3H-imidazo[4,5-f]quinoline (CAS 77314-23-9)
- 2H,4H,5H-Benzo[g]indazole-3-carboxylic acid (CAS 898796-47-9)
- 2-Hydroxy-N-(pyridin-4(1h)-ylidene)benzamide (CAS 282730-70-5)
- 5-Hydroxy-2-(hydroxymethyl)benzimidazole (CAS 886493-60-3)
- 3-chloro-4-({[(2,6-dichlorobenzoyl)amino]carbonyl}amino)benzenesulphonyl fluoride (CAS 284674-49-3)
- 2-{2,4-dioxo-3-azatricyclo[7.3.1.0^{5,13}]trideca-1(12),5,7,9(13),10-pentaen-3-yl}ethyl 3-(trifluoromethyl)benzoate (CAS 303090-95-1)
- Dimethyl 3-(cyanomethyl)pentanedioate (CAS 1709-26-8)
- tert-Butyl 4-oxo-3,4-dihydro-2H-spiro[naphthalene-1,4'-piperidine]-1'-carboxylate (CAS 948034-21-7)
- 2-Amino-N-[(furan-2-yl)methyl]acetamide hydrochloride (CAS 1181458-84-3)
- Isavuconazole Impurity 23 (CAS CATO-C4X-123623)
- Vonoprazan Impurity 260-D3 (CAS CATO-C4X-1020260)
- N-(3-Cyclopropoxy-6-(methylthio)pyridin-2-yl)methanesulfonamide (CAS 1243454-92-3)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
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