4-Bromo-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrole-3-carboxylic acid-1-oxyl CAS 78033-69-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 78033-69-9 |
| Molecular Formula | C9H14BrNO3 |
| Molecular Weight | 264.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrole-3-carboxylic acid-1-oxyl (CAS 78033-69-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C9H14BrNO3. Molecular weight: 264.12 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C9H14BrNO3 |
| Molecular Weight | 264.12 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 4-Bromo-2-(4-methoxyphenyl)pyridine (CAS 916824-55-0)
- 4-Bromo-2-phenoxyaniline (CAS 857594-84-4)
- 4-bromo-1-methyl-pyrazolo[4,3-c]pyridine-6-carboxylic acid (CAS 2633010-58-7)
- Ranibizumab (CAS 347396-82-1)
- Z-Ser(Tos)-OMe (CAS 1492-52-0)
- Isopentylhydrazine Dihydrochloride (CAS 1355355-69-9)
- n-Benzyl-1-(1-ethyl-1h-pyrazol-4-yl)methanamine (CAS 1006336-89-5)
- (1R,2S,4R)-7-oxabicyclo[2.2.1]Heptane-2-carboxylic acid (CAS 937053-06-0)
- Methyl 3-bromo-4-formylbenzoate (CAS 90484-53-0)
- Fibrinogen-Binding Inhibitor Peptide (CAS 89105-94-2)
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 13829788188 / jacky.chen@cato-chem.com