5-(5-Phenyloxazol-2-yl)isobenzofuran-1,3-dione CAS 66788-83-8
| CAS No. | 66788-83-8 |
| Molecular Formula | C17H9NO4 |
| Molecular Weight | 291.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-(5-Phenyloxazol-2-yl)isobenzofuran-1,3-dione 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.
5-(5-Phenyloxazol-2-yl)isobenzofuran-1,3-dione (CAS 66788-83-8) is a high-purity analytical reference standard with the molecular formula C17H9NO4 and a molecular weight of 291.26 g/mol.
Based on its molecular formula C17H9NO4, 5-(5-Phenyloxazol-2-yl)isobenzofuran-1,3-dione contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 291.26 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.
Physical & Chemical Properties
| Molecular Formula | C17H9NO4 |
| Molecular Weight | 291.26 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
Related Phenyloxazol Standards
- 2-(5-Phenyloxazol-2-yl)ethyl benzoate (CAS 56894-67-8)
- Benzyl (5-phenyloxazol-2-yl)carbamate (CAS 13575-14-9)
- Benzyl (2-phenyloxazol-4-yl)carbamate (CAS 32512-42-8)
- 1-((5-Methyl-2-phenyloxazol-4-yl)methyl)piperidine-4-carboxylic acid (CAS 1119452-87-7)
- 2-Methyl-4-(5-phenyloxazol-2-yl)quinolin-3-ol (CAS 112008-63-6)
- 2-(2-(4-Phenyloxazol-2-yl)phenyl)acetic acid (CAS 104907-28-0)
- 2-(4-Methyl-5-phenyloxazol-2-yl)benzoic acid (CAS 56894-45-2)
- Methyl 2-(5-phenyloxazol-2-yl)benzoate (CAS 56894-66-7)
Recommended Standards
- 5-((Benzo[d][1,3]dioxol-5-ylamino)methylene)-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 369398-78-7)
- 5-Bromo-4-((tert-butyldimethylsilyl)oxy)-1-methyl-1H-pyrazole (CAS 2810048-58-7)
- 5-((4-Methyl-2-nitrophenoxy)methyl)furan-2-carbohydrazide (CAS 364626-47-1)
- 7-[1-(2,4-Difluorophenoxy)ethyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 477864-98-5)
- 4-Benzyl-5-(5-bromofuran-2-yl)-4H-1,2,4-triazole-3-thiol (CAS 438235-91-7)
- 3-Amino-1-methyl-5-(propylthio)-1H-pyrazole-4-carbonitrile (CAS 512845-55-5)
- 3-Chloroisoxazole-5-carboxylic acid (CAS 20724-56-5)
- [(4-nitrophenyl)methyl]hydrazine hydrochloride (CAS 1727-12-4)
- Europium(III) nitrate hydrate (CAS 100587-95-9)
- 9-(3-Chlorophenyl)-2,4-bis(trifluoromethyl)-[1,2,4]triazolo[4,3-a]1,8-naphthyridine (CAS 338962-26-8)
- 4,4’-Dimethylbenzoin (CAS 1218-89-9)
- 1-tert-Butyl 3-methyl 2-methylmalonate (CAS 132180-14-4)
- N-((7-methoxybenzo[d][1,3]dioxol-5-yl)methyl)cyclopentanamine (CAS 418784-13-1)
- Semaglutide impurity 42 (CAS CATO-C4X-222642)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com