(3AS,8bS)-7-bromo-3a,8b-dihydro-3H-cyclopenta[b]benzofuran-5-carboxylic acid CAS 88277-50-3
| CAS No. | 88277-50-3 |
| Molecular Formula | C12H9BrO3 |
| Molecular Weight | 281.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3AS,8bS)-7-bromo-3a,8b-dihydro-3H-cyclopenta[b]benzofuran-5-carboxylic acid (C12H9BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
(3AS,8bS)-7-bromo-3a,8b-dihydro-3H-cyclopenta[b]benzofuran-5-carboxylic acid (CAS 88277-50-3), molecular formula C12H9BrO3 and molecular weight 281.10 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (3AS,8bS)-7-bromo-3a,8b-dihydro-3H-cyclopenta[b]benzofuran-5-carboxylic acid 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 | C12H9BrO3 |
| Molecular Weight | 281.10 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, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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.) | 1982 |
| Halogen Content | Br-containing |
Recommended Standards
- 2-Bromo-9,9-difluoro-9H-fluorene (CAS 1823405-12-4)
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- Methyl 4-(2-bromoacetyl)-3-fluorothiophene-2-carboxylate (CAS 1821027-57-9)
- 2-((4-Bromonaphthalen-1-yl)oxy)acetic acid (CAS 82746-69-8)
- 1-(5-Methylpyrazin-2-yl)piperidin-4-one (CAS 1400706-83-3)
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- Pemetrexed Impurity 7 (CAS 137281-39-1)
- Emixustat (CAS 1141777-14-1)
- Methyl 3-(4-chlorobutyl)-1H-indole-5-carboxylate (CAS 115092-81-4)
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- Trifloxysulfuron (CAS 145099-21-4)
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Why CATO?
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