(5-Bromo-3-chlorothiophen-2-yl)methanol CAS 1694626-90-8
| CAS No. | 1694626-90-8 |
| Molecular Formula | C5H4BrClOS |
| Molecular Weight | 227.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 227.51 g/mol gives (5-Bromo-3-chlorothiophen-2-yl)methanol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(5-Bromo-3-chlorothiophen-2-yl)methanol (CAS 1694626-90-8), molecular formula C5H4BrClOS and molecular weight 227.51 g/mol, is a CATO reference standard with documented purity and traceability.
(5-Bromo-3-chlorothiophen-2-yl)methanol (C5H4BrClOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C5H4BrClOS |
| Molecular Weight | 227.51 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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Recommended Standards
- 3-(bromomethyl)-2-chlorothiophene 1-oxide (CAS CATO-C4X-25473)
- 4-Methyl-6-(trichloromethyl)-1,3,5-triazin-2-amine (CAS 21227-47-4)
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- 3-Chloro-5-(dichloromethyl)-2-methoxypyrazine (CAS 73972-63-1)
- 2-(4-Bromophenoxy)-N-(3-nitrophenyl)acetamide (CAS 332376-09-7)
- 6-(4-methylphenyl)-4,5-dihydropyridazin-3(2H)-one (CAS 1079-72-7)
- 4'-(Trifluoromethyl)biphenyl-2-carbaldehyde (CAS 84392-23-4)
- 4-Chloro-2-nitrophenyl hydrazine hydrochloride (CAS 100032-77-7)
- (E)-3-(3-Fluoro-5-methoxyphenyl)acrylic acid (CAS 628732-18-3)
- 2-(Difluoromethyl)-3,5-dihydroxy-4-fluoropyridine (CAS 1806796-98-4)
- 5,5'-Methylene-bis(oxy)diisophthalic acid (CAS 1268133-46-5)
- 4-Fluoro-2-iodophenol (CAS 2713-29-3)
- 2-Methyl-[1,3]thiazolo[5,4-b]pyridine-6-carboxylic acid (CAS 927801-67-0)
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