(E)-3-(2-Chloro-4-((3-(2,6-dichlorophenyl)-5-isopropylisoxazol-4-yl)methoxy)styryl)benzoic acid CAS 1089660-72-9
| CAS No. | 1089660-72-9 |
| Molecular Formula | C28H22Cl3NO4 |
| Molecular Weight | 542.84 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 (E)-3-(2-Chloro-4-((3-(2,6-dichlorophenyl)-5-isopropylisoxazol-4-yl)methoxy)styryl)benzoic acid.
(E)-3-(2-Chloro-4-((3-(2,6-dichlorophenyl)-5-isopropylisoxazol-4-yl)methoxy)styryl)benzoic acid (CAS 1089660-72-9), molecular formula C28H22Cl3NO4 and molecular weight 542.84 g/mol, is a CATO reference standard with documented purity and traceability.
(E)-3-(2-Chloro-4-((3-(2,6-dichlorophenyl)-5-isopropylisoxazol-4-yl)methoxy)styryl)benzoic acid (C28H22Cl3NO4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures (E)-3-(2-Chloro-4-((3-(2,6-dichlorophenyl)-5-isopropylisoxazol-4-yl)methoxy)styryl)benzoic 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 | C28H22Cl3NO4 |
| Molecular Weight | 542.84 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
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Recommended Standards
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- (5-(4-(((5-Methylfuran-2-yl)methyl)amino)quinazolin-6-yl)furan-2-yl)methanol (CAS 1285702-20-6)
- AS-252424 (CAS 900515-16-4)
- Torasemide Impurity 6 (CAS 106944-63-2)
- 2-Fluoro-3-methyl-5-(pyridin-3-yl)pyridine (CAS 1214339-11-3)
- Ethyl 3-methylfuro[2,3-b]pyridine-2-carboxylate (CAS 1125674-06-7)
- [1-(2,2,2-trifluoroethyl)-1h-pyrazol-4-yl]methanamine (CAS 856696-07-6)
- 1-(1H-pyrazolo[3,4-b]pyridin-1-yl)propan-2-one (CAS 1936047-52-7)
- Protein Kinase C? Peptide Substrate (CAS 120253-69-2)
Why CATO?
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