Ethyl 3-bromo-5-nitro-1H-indole-2-carboxylate CAS 183384-45-4
| CAS No. | 183384-45-4 |
| Molecular Formula | C11H9BrN2O4 |
| Molecular Weight | 313.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 3-bromo-5-nitro-1H-indole-2-carboxylate (CAS 183384-45-4), molecular formula C11H9BrN2O4 and molecular weight 313.10 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, Ethyl 3-bromo-5-nitro-1H-indole-2-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 313.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C11H9BrN2O4 |
| Molecular Weight | 313.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 6-Bromo-7-ethoxy-4-hydroxycinnoline-3-carboxylic acid (CAS 1041853-22-8)
- 6-Bromo-7-ethoxy-2-oxo-2H-chromene-3-carboxylic acid (CAS 1352524-40-3)
- Ethyl 2-(5-bromo-3-cyano-2-nitrophenyl)acetate (CAS 1804403-64-2)
- Ethyl 2-(6-bromo-3-cyano-2-nitrophenyl)acetate (CAS 1805103-27-8)
- Ethyl 2-(2-bromo-5-cyano-3-nitrophenyl)acetate (CAS 1805521-49-6)
- Ethyl 2-(2-bromo-6-cyano-3-nitrophenyl)acetate (CAS 1805574-27-9)
- Ethyl 2-(3-bromo-5-cyano-4-nitrophenyl)acetate (CAS 1805574-42-8)
- Ethyl 2-(4-bromo-3-cyano-5-nitrophenyl)acetate (CAS 1805574-58-6)
Recommended Standards
- Ethyl 2-(3-bromo-2-cyano-5-nitrophenyl)acetate (CAS 1807045-40-4)
- 5-Bromo-7-methyl-2,3-dihydrofuro-[2,3-f][1,4]benzodioxine-8-carboxylic acid (CAS 933682-36-1)
- Ethyl 2-(5-bromo-4-cyano-2-nitrophenyl)acetate (CAS 1807021-89-1)
- 5-Bromo-N-(2,4-difluorophenyl)pyridine-3-carboxamide (CAS 388571-58-2)
- 2-((2-((tert-Butoxycarbonyl)(isopropyl)amino)cyclohexyl)amino)acetic acid (CAS 1353989-02-2)
- Fmoc-Lys(palmitoyl)-OH (CAS 201004-46-8)
- 2-(2-Chloroethyl)-1,3-dioxane (CAS 13297-07-9)
- Venlafaxine Impurity 29 (CAS 1216539-56-8(unlabelled))
- Colterol HCl (CAS 52872-37-4)
- 10,12-Pentacosadiynamide (CAS 178323-65-4)
- 2-(Cyclopropyl(2-methylbenzyl)amino)ethanol (CAS 1247474-60-7)
- TPB48 (CAS 2674090-34-5)
- trans-3-(Benzyloxymethyl)cyclobutyl4-nitrobenzoate (CAS 172324-70-8)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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