5-Bromo-3-(bromomethyl)isothiazole CAS 4576-94-7
| CAS No. | 4576-94-7 |
| Molecular Formula | C4H3Br2NS |
| Molecular Weight | 256.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 256.95 g/mol gives 5-Bromo-3-(bromomethyl)isothiazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-Bromo-3-(bromomethyl)isothiazole (CAS 4576-94-7), a certified reference material (molecular formula C4H3Br2NS, MW 256.95 g/mol) for analytical method development and quality control.
5-Bromo-3-(bromomethyl)isothiazole (C4H3Br2NS) 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 5-Bromo-3-(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 | C4H3Br2NS |
| Molecular Weight | 256.95 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.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-2-(bromomethyl)-1,3-thiazole (CAS 1138333-26-2)
- 5-Bromo-2-(bromomethyl)thiazole (CAS 1312537-34-0)
- 2-Bromo-5-bromomethyl-thiazole (CAS 131748-91-9)
- 2-Bromo-4-(bromomethyl)-1,3-thiazole (CAS 180597-85-7)
- 4-Bromo-5-(bromomethyl)thiazole (CAS 1823907-80-7)
- 4-Bromo-3-(bromomethyl)isothiazole (CAS 4576-96-9)
- 4-Bromo-5-(bromomethyl)-1,2-thiazole (CAS 2092486-98-9)
- 5-Bromo-4-(bromomethyl)thiazole (CAS 240433-75-4)
Recommended Standards
- 8-Trifluoromethoxyquinoline-5-boronic acid (CAS 1072951-46-2)
- 2,5-Dibromo-4-methylthiazole (CAS 79247-78-2)
- [6-(Trifluoromethoxy)quinolin-8-yl]boronic acid (CAS 1089179-11-2)
- 2,5-DIBROMOBENZENAMINE 2,5-Dibromoaniline 3638-73-1 AS00471 ATTERCOP-CHM AT130477 OTAVA-BB 1506319 RARECHEM FH 1W 0043 (CAS 3638-73-1)
- (6-amino-5-chloro-1,3-benzoxazol-2-yl)methanol (CAS 1552181-69-7)
- Tert-butyl 3-amino-4-hydroxyazepane-1-carboxylate (CAS 1260641-53-9)
- Dimethyl-[6-methyl-2-(4-methyl-piperidin-4-yl)-pyrimidin-4-yl]-amine (CAS 1316227-55-0)
- 2-(4-(4-Ethylphenyl)-2-morpholinothiazol-5-yl)acetic acid (CAS 1443291-64-2)
- Decitabine Impurity 21 (CAS 69304-64-9)
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