4-(4-Bromophenyl)-2-(7-ethyl-1H-indol-3-yl)-4-oxobutanoic acid CAS 937604-68-7
| CAS No. | 937604-68-7 |
| Molecular Formula | C20H18BrNO3 |
| Molecular Weight | 400.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-(4-Bromophenyl)-2-(7-ethyl-1H-indol-3-yl)-4-oxobutanoic acid (CAS 937604-68-7) is a high-purity analytical reference standard with the molecular formula C20H18BrNO3 and a molecular weight of 400.27 g/mol.
The molecular framework of 4-(4-Bromophenyl)-2-(7-ethyl-1H-indol-3-yl)-4-oxobutanoic acid (C20H18BrNO3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
As a certified reference material (CRM), 4-(4-Bromophenyl)-2-(7-ethyl-1H-indol-3-yl)-4-oxobutanoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H18BrNO3 |
| Molecular Weight | 400.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 6-Bromo-2-(3-isobutoxyphenyl)quinoline-4-carboxylic acid (CAS 489451-29-8)
- Isopropyl 6-bromo-2-(4-methoxyphenyl)quinoline-4-carboxylate (CAS 351327-52-1)
- (R)-2-(2-bromo-5-methoxyphenyl)pyrrolidine (CAS 1213546-32-7)
- N-(3-(hydrazinecarbonyl)phenyl)benzamide (CAS 499979-51-0)
- 2-(6-Bromo-2-cyano-3-(trifluoromethyl)phenyl)acetic acid (CAS 1804407-24-6)
- N'-cyclohexylidenebenzohydrazide (CAS 24214-79-7)
- 2-tert-Butyl-4-bromophenol (CAS 10323-39-4)
- 1-(1-Methyl-1h-imidazol-2-yl)ethanethiol (CAS 1420809-05-7)
- 1-(3-(3-Methyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl)piperidin-4-amine dihydrochloride (CAS 1239748-54-9)
- (2-Fluorophenyl)(4-methylpiperazin-1-yl)methanone (CAS 20929-25-3)
- 2-(Difluoromethoxy)-3-fluorobenzoic acid (CAS 1214372-41-4)
- β-Asp9-Tirzepatide (CAS CATO-CPTD788931)
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