2-(5-Bromothiophen-2-yl)ethanamine hydrobromide CAS 381666-13-3
| CAS No. | 381666-13-3 |
| Molecular Formula | C6H8BrNS |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(5-Bromothiophen-2-yl)ethanamine hydrobromide.
2-(5-Bromothiophen-2-yl)ethanamine hydrobromide (CAS 381666-13-3), molecular formula C6H8BrNSHBr and molecular weight 287.01 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, bromine substitution, 2-(5-Bromothiophen-2-yl)ethanamine hydrobromide is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 287.01 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 | C6H8BrNS HBr |
| Molecular Weight | 287.01 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromothiophen Standards
- 4,7-Bis(5-bromothiophen-2-yl)-5,6-dinitrobenzo[c][1,2,5]thiadiazole (CAS 1000000-27-0)
- 3-(3-Bromothiophen-2-yl)propan-1-ol (CAS 1000508-67-7)
- 3-(5-Bromothiophen-2-yl)propan-1-amine (CAS 1000510-45-1)
- 3-(5-Bromothiophen-2-yl)propan-1-ol (CAS 1000518-75-1)
- 3-(4-bromothiophen-2-yl)propan-1-ol (CAS 1000529-80-5)
- 2-(3-Bromothiophen-2-yl)ethan-1-amine (CAS 1000532-83-1)
- 3,6-Bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (CAS 1000623-95-9)
- N-((5-Bromothiophen-2-yl)methyl)-1-(3,4-difluorobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 1001413-88-2)
Recommended Standards
- 1-(4-Chlorophenyl)-3-phenyl-1H-pyrazole-5-carboxylic acid (CAS 618101-90-9)
- 4-bromo-5-m-tolyl-1H-pyrazol-3-amine (CAS 1313254-39-5)
- N-(3,5-dibromo-2-methoxybenzyl)propan-1-amine (CAS 893604-71-2)
- 1-[(tert-butoxy)carbonyl]-6,6-dimethylpiperidine-3-carboxylic acid (CAS 1269755-64-7)
- Methyl 6-methyl-5-(trifluoromethyl)picolinate (CAS 1256794-37-2)
- (1r,3r)-3-phenoxycyclobutan-1-ol (CAS 1955473-80-9)
- 3,4-dihydro-2H-thiopyran (CAS 13042-80-3)
- (7-Methoxy-chroman-3-yl)-methylamine hydrochloride (CAS 1187932-66-6)
- 2-(Phenylsulfonyl)-3-(3-pyridyl)prop-2-enenitrile (CAS 669708-39-8)
- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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