3-Bromo-5-ethynylphenol CAS 1353337-08-2
| CAS No. | 1353337-08-2 |
| Molecular Formula | C8H5BrO |
| Molecular Weight | 197.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-5-ethynylphenol (C8H5BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
3-Bromo-5-ethynylphenol (CAS 1353337-08-2), molecular formula C8H5BrO and molecular weight 197.03 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.
As a certified reference material (CRM), 3-Bromo-5-ethynylphenol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 1991 |
| 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)
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- 5-Bromo-6-methylpicolinonitrile (CAS 1173897-86-3)
Recommended Standards
- 7-Bromobenzofuran (CAS 133720-60-2)
- 4-Bromo-5-methylpicolinonitrile (CAS 1353856-72-0)
- 4-Bromobenzofuran (CAS 128868-60-0)
- 4-Bromopyrrolo[1,2-c]pyrimidine (CAS 1357095-09-0)
- 1-Phenyl-2,3-dihydroquinazoline-4(1H)-thione (CAS 90070-87-4)
- N-(5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)acetamide (CAS 10444-99-2)
- N,N-Dimethyl-N-thiophen-2-ylmethyl-propane-1,3-diamine (CAS 626216-45-3)
- 4-(tert-Butyl)-2-cyclopropoxy-1-methylbenzene (CAS 1243464-61-0)
- 4-((2-((Tert-butoxycarbonyl)amino)ethyl)amino)-4-oxobutanoic acid (CAS 891781-87-6)
- (1S,2S)-2-Benzyloxycyclobutanamine (CAS 1932631-45-2)
- (S)-1-Boc-2-(Aminomethyl)pyrrolidine (CAS 119020-01-8)
- Otilonium Bromide Impurity 14 (CAS 49557-33-7)
- Methyl 4-cyano-1-methyl-1H-pyrazole-5-carboxylate (CAS 70910-18-8)
- endo-Gly31-Semaglutide (CAS CATO-C4X-2226282)
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