3-Bromo-2-hydroxy-4,4,5,5-tetramethylcyclopent-2-en-1-one CAS 1889-99-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1889-99-2 |
| Molecular Formula | C9H13BrO2 |
| Molecular Weight | 233.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Bromo-2-hydroxy-4,4,5,5-tetramethylcyclopent-2-en-1-one (CAS 1889-99-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C9H13BrO2. Molecular weight: 233.10 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C9H13BrO2 |
| Molecular Weight | 233.10 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
Related Bromo Standards
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- 5-bromo-4-methyl-1,3-dihydro-2-benzofuran-1-one (CAS 1255206-67-7)
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Recommended Standards
- 5-bromobenzofuran-7-carbaldehyde (CAS 170681-94-4)
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- 5-Formylpicolinic acid (CAS 53574-58-6)
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- tert-Butyl 6-Fluoro-1,4-diazepane-1-carboxylate (CAS 1261297-63-5)
- 1-Methyl-5-oxopyrrolidine-2-carboxylic acid (CAS 72442-37-6)
- Tau Peptide (401-411)-Lys-Lys trifluoroacetate salt (CAS 2022956-59-6)
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