2-Bromo-5-ethynylphenol CAS 2353678-02-9
| CAS No. | 2353678-02-9 |
| Molecular Formula | C8H5BrO |
| Molecular Weight | 197.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Bromo-5-ethynylphenol is closely related to a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-Bromo-5-ethynylphenol (CAS 2353678-02-9), a certified reference material (molecular formula C8H5BrO, MW 197.03 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H5BrO, 2-Bromo-5-ethynylphenol contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 197.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
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.) | 1999 |
| 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
- 2-Bromo-5-cyano-3-picoline (CAS 374633-37-1)
- 2-Bromo-5-methylnicotinonitrile (CAS 65996-18-1)
- 2-Bromo-4-methylnicotinonitrile (CAS 65996-02-3)
- 2-Bromo-6-ethynylphenol (CAS 2229152-00-3)
- Ethyl 6-nitrobenzo[d]oxazole-2-carboxylate (CAS 58758-41-1)
- Benzyl (cis-4-fluoropyrrolidin-3-yl)carbamate hydrochloride (CAS 1951441-41-0)
- 3-(1,2-oxazol-3-yl)propanoic acid (CAS 855747-49-8)
- Bis(3-trifluoromethylphenyl)(3-carboxyphenyl)phosphine (CAS 1808959-38-7)
- diethyl 2-methyl-6-(trifluoromethyl)pyridine-3,5-dicarboxylate (CAS 393-81-7)
- Ethyl (2S,4R)-4-methylpyrrolidine-2-carboxylate (CAS 165273-06-3)
- 5-Amino-1H-imidazo[4,5-b]pyridin-7(4H)-one (CAS 60282-59-9)
- methyl (1S,3R)-3-(hydroxymethyl)-2,2-dimethylcyclobutane-1-carboxylate (CAS 528560-24-9)
- 2-Cyclopropoxy-4-(methylsulfonamido)benzenesulfonamide (CAS 1243396-40-8)
- (D-Ala1)-Peptide T amide (CAS 106362-34-9)
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