3-(Bromomethyl)-5-(5-chlorothiophen-2-yl)isoxazole CAS 323594-39-4
| CAS No. | 323594-39-4 |
| Molecular Formula | C8H5BrClNOS |
| Molecular Weight | 278.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 278.55 g/mol gives 3-(Bromomethyl)-5-(5-chlorothiophen-2-yl)isoxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-(Bromomethyl)-5-(5-chlorothiophen-2-yl)isoxazole (CAS 323594-39-4), a certified reference material (molecular formula C8H5BrClNOS, MW 278.55 g/mol) for analytical method development and quality control.
Structurally, 3-(Bromomethyl)-5-(5-chlorothiophen-2-yl)isoxazole (C8H5BrClNOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 278.55 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C8H5BrClNOS |
| Molecular Weight | 278.55 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, 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.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromomethyl Standards
- Ethyl 2-(bromomethyl)-6-chloronicotinate (CAS 31163-13-0)
- 1-Boc-2-(bromomethyl)piperidine (CAS 889942-58-9)
- 3-(Bromomethyl)-N,N-dimethylbenzenesulfonamide (CAS 137638-70-1)
- N-(3-(Bromomethyl)phenyl)ethanesulfonamide (CAS 1527625-31-5)
- 4-(Bromomethyl)-N,N-dimethylbenzenesulfonamide, 97% (CAS 3446-91-1)
- 1-Boc-5-(bromomethyl)pyrrolidin-2-one (CAS 958248-90-3)
- 3-(Bromomethyl)-5-(trifluoromethyl)-1H-indole (CAS 1823362-26-0)
- 6-(Bromomethyl)-1,3-dimethyl-5-nitropyrimidine-2,4(1H,3H)-dione (CAS 61885-26-5)
Recommended Standards
- 2-Bromo-7-chloro-6-methoxybenzo[d]thiazole (CAS 1784045-87-9)
- 7-Bromo-2-chloro-6-methoxybenzo[d]thiazole (CAS 911056-05-8)
- 2-Bromo-4-chloro-6-methoxybenzo[d]thiazole (CAS 1464091-50-6)
- Dibromo-μ-1,5-pentanediyldimagnesium (CAS 23708-48-7)
- 7-Methylguanine (CAS 578-76-7)
- 1-(2-Methoxy-5-methylphenyl)propan-2-one (CAS 62155-74-2)
- 2-(Tetrahydro-2H-pyran-4-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole (CAS 2416673-94-2)
- Palmitoyl-L-carnitine-d3 Hydrochloride (CAS 1334532-26-1)
- 2-(2-Methoxyphenyl)pyrrolidine (CAS 103857-96-1)
- (S)-1,7a-Dihydropyrrolo[1,2-c]oxazol-3(5H)-one (CAS 571201-15-5)
- 4-Isopropoxy-2-methylbenzoic acid (CAS 111220-35-0)
- N-((1R,3S,4S)-3-((4-(3-Benzyl-1-ethyl-1H-pyrazol-5-yl)piperidin-1-yl)methyl)-4-(3-fluorophenyl)cyclopentyl)-N-methyl-D-valine (CAS 313994-79-5)
- 5-Amino-1-(3-methylphenyl)-1H-pyrazole-4-carboxamide (CAS 1171627-74-9)
- Peptide Impurity 27 (CAS 1350456-68-6)
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