Ethyl 2-(4-bromophenyl)-5-((tert-butoxycarbonyl)amino)pentanoate CAS 1956381-85-3
| CAS No. | 1956381-85-3 |
| Molecular Formula | C18H26BrNO4 |
| Molecular Weight | 400.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-(4-bromophenyl)-5-((tert-butoxycarbonyl)amino)pentanoate (C18H26BrNO4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine 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.
Ethyl 2-(4-bromophenyl)-5-((tert-butoxycarbonyl)amino)pentanoate (CAS 1956381-85-3), molecular formula C18H26BrNO4 and molecular weight 400.31 g/mol, is a CATO reference standard with documented purity and traceability.
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 Ethyl 2-(4-bromophenyl)-5-((tert-butoxycarbonyl)amino)pentanoate 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 | C18H26BrNO4 |
| Molecular Weight | 400.31 g/mol |
| Appearance | Off-white to pale 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 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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- 1-[(4-Chlorophenyl)sulfanyl]-4-[(2,5-dichlorophenoxy)methyl]-2-nitrobenzene (CAS 477869-50-4)
- Methyl 2-hydroxy-4-nitrobenzoate, 97% (CAS 13684-28-1)
- 2-(4-Methoxyphenoxy)pyridin-3-amine (CAS 170440-07-0)
- Ethyl 7-bromo-1-methyl-1,2,3-benzotriazole-5-carboxylate (CAS 1423037-30-2)
- 4-[(2,4-Dimethylphenyl)sulfanyl]-3-methyl-[1,2]oxazolo[5,4-d]pyrimidine (CAS 478045-24-8)
- 2-(5-Amino-1h-indol-1-yl)-n,n-diethylacetamide hydrochloride (CAS 1235441-62-9)
- Des-His(1)-Semaglutide (CAS CATO-C4X-2226216)
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