5-(4-Ethylphenyl)oxazole-4-carboxylic acid CAS 89205-06-1
| CAS No. | 89205-06-1 |
| Molecular Formula | C12H11NO3 |
| Molecular Weight | 217.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 217.22 g/mol gives 5-(4-Ethylphenyl)oxazole-4-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-(4-Ethylphenyl)oxazole-4-carboxylic acid (CAS 89205-06-1) is a high-purity analytical reference standard with the molecular formula C12H11NO3 and a molecular weight of 217.22 g/mol.
Structurally, 5-(4-Ethylphenyl)oxazole-4-carboxylic acid (C12H11NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 217.22 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-(4-Ethylphenyl)oxazole-4-carboxylic 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 | C12H11NO3 |
| Molecular Weight | 217.22 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
Related Ethylphenyl Standards
- 5-(4-Ethylphenyl)oxazole-2-carboxylic acid (CAS 1216272-66-0)
- 3-(2-Ethylphenyl)isoxazole-5-carboxylic acid (CAS 1248012-50-1)
- 3-(4-Ethylphenyl)isoxazole-5-carboxylic acid (CAS 901927-10-4)
- 5-(4-Ethylphenyl)-1,2-oxazole-3-carboxylic acid (CAS 887360-50-1)
- (3-(4-Ethylphenyl)-5-methylisoxazol-4-yl)methanol (CAS 1267275-87-5)
- [2-(4-Ethylphenyl)-5-methyl-1,3-oxazol-4-yl]methanol (CAS 851181-89-0)
- 1-(3-(4-Ethylphenyl)-1,2,4-oxadiazol-5-yl)ethan-1-amine (CAS 1082807-29-1)
- 2-(2-Ethylphenyl)thiazole-4-carbaldehyde (CAS 885279-53-8)
Recommended Standards
- 5-(Benzylamino)-1H-pyrazole-3-carboxylic acid (CAS 915767-77-0)
- 5-(4-Aminophenyl)furan-2-carboxylic acid methyl ester (CAS 52939-06-7)
- 5-(Benzyloxy)-1H-imidazole-4-carboxamide (CAS 88100-22-5)
- 5-(3,4-Dimethylphenyl)-1,2-oxazole-3-carboxylic acid (CAS 898470-64-9)
- 2-(5-Methyl-1,3,4-thiadiazol-2-yl)acetic acid (CAS 27349-42-4)
- 3-(4-Benzhydrylpiperazin-1-yl)-N'-(4-hydroxybenzylidene)propanehydrazide (CAS 398997-86-9)
- tert-Butyl 3-(2-cyanopropan-2-yl)benzoate (CAS 1308679-42-6)
- 3-(2-Fluorophenyl)-3-hydroxypropanenitrile (CAS 106468-02-4)
- 1,3-Dioxoisoindoline-2-carbothioamide (CAS 112486-72-3)
- 1-(3,5-Dichloro-2-hydroxyphenyl)-1-propanone (CAS 18430-74-5)
- (S)-2-(4-chlorophenyl)-5-(pyrrolidin-3-yl)-1,3,4-oxadiazole (CAS 1234688-59-5)
- 5-Chloro-2-hydroxyphenyl benzoate (CAS 5876-98-2)
- 1-(1-Methyl-1H-indol-3-yl)-3-(thiophen-2-ylmethyl)urea (CAS 899990-41-1)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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