2-(3-Phenylisoxazol-5-yl)acetic acid CAS 3919-84-4
| CAS No. | 3919-84-4 |
| Molecular Formula | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(3-Phenylisoxazol-5-yl)acetic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(3-Phenylisoxazol-5-yl)acetic acid (CAS 3919-84-4), molecular formula C11H9NO3 and molecular weight 203.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H9NO3, 2-(3-Phenylisoxazol-5-yl)acetic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 2-(3-Phenylisoxazol-5-yl)acetic 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 | C11H9NO3 |
| Molecular Weight | 203.19 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, ethanol, 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.) | 1958 |
| Nitrogen Atoms | 1 |
Related Phenylisoxazol Standards
- 2-(5-Phenylisoxazol-4-yl)acetic acid (CAS 155602-50-9)
- 4-Acetyl-3-phenylisoxazol-5(4H)-one (CAS 50401-64-4)
- (5-Ethyl-3-phenylisoxazol-4-yl)methanol (CAS 99299-07-7)
- 1-(5-Methyl-3-phenylisoxazol-4-yl)ethan-1-ol (CAS 6497-24-1)
- 2-(3-Methyl-5-phenylisoxazol-4-yl)ethan-1-ol (CAS 401632-47-1)
- 3-(3-Phenylisoxazol-5-yl)propan-1-ol (CAS 54901-66-5)
- (5-Methyl-3-phenylisoxazol-4-yl)boronic acid (CAS 491876-01-8)
- N-(3-Phenylisoxazol-5-yl)acetamide (CAS 31301-40-3)
Recommended Standards
- 2-(3-Methylisoxazol-5-yl)benzoic Acid (CAS 80238-83-1)
- 2-(4-Formyl-1H-indol-1-yl)acetic acid (CAS 219685-09-3)
- 2-(3-Methoxyphenyl)oxazole-4-carbaldehyde (CAS 885272-93-5)
- 2-(4-Methoxybenzoyl)oxazole (CAS 898759-50-7)
- (11bR)-2,6-Dibromo-N,N-bis((S)-1-phenylethyl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine (CAS 1642864-91-2)
- 2-Bromo-3-ethoxyaniline (CAS 908355-80-6)
- N-(3-Cyanothiophen-2-yl)-3-(ethylsulfonyl)benzamide (CAS 898459-46-6)
- 2-(tert-Butoxy)-4-hydroxybenzonitrile (CAS 1243387-30-5)
- 2-Chloro-1-methylpyridin-1-ium (CAS 45528-84-5)
- 1-(3-(Trifluoromethyl)pyridin-4-yl)cyclopropane-1-carbonitrile (CAS 1427021-76-8)
- (S)-2-Amino-4-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile (CAS 2751570-31-5)
- 2-((6-Chloro-2-isopropylquinazolin-4-yl)thio)acetic acid (CAS 872473-52-4)
- 1-Boc-4-bromo-1,2,3,6-tetrahydropyridine (CAS 159503-91-0)
- Hepcidin/LEAP-1 (Human); Liver-Expressed Antimicrobial Peptide (CAS 342790-21-0)
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