(5-Bromothiophen-3-yl)methanol CAS 73919-88-7
| CAS No. | 73919-88-7 |
| Molecular Formula | C5H5BrOS |
| Molecular Weight | 193.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5-Bromothiophen-3-yl)methanol (CAS 73919-88-7) is a high-purity analytical reference standard with the molecular formula C5H5BrOS and a molecular weight of 193.06 g/mol.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, (5-Bromothiophen-3-yl)methanol is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 193.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C5H5BrOS |
| Molecular Weight | 193.06 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1978 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromothiophen Standards
- (2-Bromothiophen-3-yl)methanol (CAS 70260-16-1)
- (4-Bromothiophen-3-yl)methanol (CAS 70260-05-8)
- (4-Bromothiophen-3-yl)methanamine (CAS 1510394-75-8)
- (2-Bromothiophen-3-yl)methanamine (CAS 157664-47-6)
- (5-bromothiophen-3-yl)methanamine (CAS 1087784-61-9)
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- (5-bromothiophen-2-yl)methanamine (CAS 612499-04-4)
Recommended Standards
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- Ethyl 2-Bromo-2-(2-pyridyl)acetate (CAS 74376-32-2)
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