4-(Bromomethyl)isothiazole CAS 1378822-69-5
| CAS No. | 1378822-69-5 |
| Molecular Formula | C4H4BrNS |
| Molecular Weight | 178.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 178.05 g/mol gives 4-(Bromomethyl)isothiazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(Bromomethyl)isothiazole (CAS 1378822-69-5) is a high-purity analytical reference standard with the molecular formula C4H4BrNS and a molecular weight of 178.05 g/mol.
4-(Bromomethyl)isothiazole (C4H4BrNS) contains a nitrile group, sulfur-containing functionality, 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.
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.
As a certified reference material (CRM), 4-(Bromomethyl)isothiazole 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 | C4H4BrNS |
| Molecular Weight | 178.05 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromomethyl Standards
- 2-(Bromomethyl)thiazole (CAS 131654-56-3)
- 5-(bromomethyl)thiazole hydrobromide (CAS 167998-61-0)
- 3-(Bromomethyl)isothiazole (CAS 4576-91-4)
- 4-(Bromomethyl)thiazole, 97% (CAS 52829-53-5)
- 5-(Bromomethyl)isothiazole (CAS 208837-85-8)
- 3-(Bromomethyl)piperidine (CAS 1011407-68-3)
- 3-(Bromomethyl)-1-methylpyrrolidine (CAS 1330756-17-6)
- (2S)-2-(bromomethyl)-1-methyl-pyrrolidine (CAS 60365-88-0)
Recommended Standards
- 4-bromo-5-methyl-Thiazole (CAS 132221-51-3)
- 4-Bromo-5-methylisothiazole (CAS 1547081-09-3)
- 4-Bromothiophen-3-amine (CAS 161833-43-8)
- 3-Bromo-4-methyl-isothiazole (CAS 1174132-75-2)
- Chlorocyclohexane (CAS 542-18-7)
- 2-(2-Methoxyphenyl)-7-methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS 898386-41-9)
- Dimethylphenacylsulfonium Tetrafluoroborate (CAS 24806-57-3)
- 2-Methylpyrrole (CAS 636-41-9)
- Docetaxel Impurity 86 (CAS CATO-C4X-161986)
- 2-(4'-Bromo-[1,1'-biphenyl]-4-yl)acetic acid (CAS 5728-55-2)
- 1-Methylpyrrolidin-2-imine (CAS 7544-76-5)
- Methyl 5-chloro-2-naphthoate (CAS 127810-72-4)
- 2-Methyltetrahydrothiophene 1,1-dioxide (CAS 1003-46-9)
- Peptide 74 (H-8545.0500) (CAS 132116-39-3)
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