5-Bromo-2-ethynylphenol CAS 2228644-88-8
| CAS No. | 2228644-88-8 |
| Molecular Formula | C8H5BrO |
| Molecular Weight | 197.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromo-2-ethynylphenol (CAS 2228644-88-8) is a high-purity analytical reference standard with the molecular formula C8H5BrO and a molecular weight of 197.03 g/mol.
The molecular framework of 5-Bromo-2-ethynylphenol (C8H5BrO) is characterized by a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 5-Bromo-2-ethynylphenol 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 | C8H5BrO |
| Molecular Weight | 197.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-Bromo-1H-pyrrolo[3,2-c]pyridine (CAS 1000342-68-6)
- 6-Bromo-5-azaindole, 97% (CAS 1000342-71-1)
- 2-Bromo-5-cyano-6-picoline (CAS 1003711-39-4)
- 2-Bromo-1H-pyrrolo[2,3-b]pyridine (CAS 1083181-25-2)
- Methyl 2-bromo-4-hydroxybutanoate (CAS 111044-01-0)
- 2-Bromo-6-(cyanomethyl)pyridine (CAS 112575-11-8)
- 3-Bromo-3H-pyrrolo[2,3-b]pyridine (CAS 1160790-59-9)
- 5-Bromo-6-methylpicolinonitrile (CAS 1173897-86-3)
Recommended Standards
- 5-Bromo-2-cyanomethylpyridine, 97% (CAS 312325-72-7)
- 5-Bromo-2-methylisonicotinonitrile (CAS 51454-48-9)
- 5-Amino-2-bromobenzonitrile (CAS 72115-09-4)
- 5-Bromo-2-methylnicotinonitrile (CAS 956276-47-4)
- 1-tert-Butyl 2-methyl (2R)-2-methylazetidine-1,2-dicarboxylate (CAS 1384745-52-1)
- 2-(4-Chlorostyryl)-5-methyloxazole-4-carboxylic acid (CAS 89723-98-8)
- Cobalt,hexacarbonyl[μ-[1,1′-(η2:η2-1,2-ethynediyl)bis[benzene]]]di-,(Co-Co) (CAS 14515-69-6)
- 8-Benzyl-3-oxa-1,8-diazaspiro[4.5]Decan-2-one (CAS 945892-89-7)
- 4-[2-(2-Methoxy-4-propylphenoxy)ethyl]piperidinehydrochloride (CAS 1220030-26-1)
- 1,3,4,6-Tetrahydropyrrolo[3,2-e]-[1,4]diazepine-2,5-dione (CAS 1099597-10-0)
- Silodosin Impurity 31 (CAS CATO-C4X-175431)
- (1-Benzyl-2-trifluoromethylsulfanyl-ethyl)-(3-methyl-benzyl)-amine (CAS 1208078-51-6)
- 4-(4-Chlorobenzoyl)-1H-pyrrole-2-carboxylic acid (CAS 72531-60-3)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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