(5-(Furan-2-yl)isoxazol-3-yl)methyl 3,4,5-trimethoxybenzoate CAS 1105243-73-9
| CAS No. | 1105243-73-9 |
| Molecular Formula | C18H17NO7 |
| Molecular Weight | 359.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5-(Furan-2-yl)isoxazol-3-yl)methyl 3,4,5-trimethoxybenzoate (CAS 1105243-73-9), molecular formula C18H17NO7 and molecular weight 359.33 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H17NO7, (5-(Furan-2-yl)isoxazol-3-yl)methyl 3,4,5-trimethoxybenzoate 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 359.33 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.
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 | C18H17NO7 |
| Molecular Weight | 359.33 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
Related Furan Standards
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Recommended Standards
- 2-[2-(2,6-dioxo-3-piperidyl)-1,3-dioxo-isoindolin-4-yl]oxy-N,N-dimethyl-acetamide (CAS 1061605-16-0)
- (2,6-Difluorophenyl)(4-(5-(furan-2-yl)-1,3,4-oxadiazol-2-yl)piperidin-1-yl)methanone (CAS 1171447-96-3)
- 3-Benzhydryl-3H-purin-6(9H)-one (CAS 10299-58-8)
- 4-[[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]amino]-4-oxo-butanoic acid (CAS 1488107-60-3)
- 2-((5-(4-(3,3-Dimethylbutanoyl)piperazin-1-yl)-1,3,4-thiadiazol-2-yl)thio)-N-isopropylacetamide (CAS 1105200-42-7)
- 2-Pyrazol-1-yl-ethanol 2-(1h-pyrazol-1-yl)ethanol 1-(2-hydroxyethyl)-1h-pyrazole n-(b-hydroxyethyl)pyrazole 1-(2-Hydroxyethyl)-pyrazole 6314-23-4 (CAS 6314-23-4)
- Selenophen-2-ylboronic acid (CAS 35133-86-9)
- Methyl N-(thioxomethylene)norvalinate (CAS 1177284-96-6)
- Fingolimod Impurity 27 (CAS 162358-05-6)
- 2-Bromoquinolin-8-yl acetate (CAS 139399-65-8)
- Cyclopentyl(oxazol-2-yl)methanone (CAS 898758-86-6)
- Lacβ(1-4)Lac-β-C10 (CAS 1858224-00-6)
- methyl L-prolinate (CAS 2577-48-2)
- Semaglutide Impurity 180 (CAS CATO-C4X-2226180)
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