4-Bromoisothiazole-3-carbonitrile CAS 89089-06-5
| CAS No. | 89089-06-5 |
| Molecular Formula | C4HBrN2S |
| Molecular Weight | 189.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Bromoisothiazole-3-carbonitrile (CAS 89089-06-5), molecular formula C4HBrN2S and molecular weight 189.03 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, bromine substitution, 4-Bromoisothiazole-3-carbonitrile is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 189.03 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.
CATO manufactures 4-Bromoisothiazole-3-carbonitrile under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4HBrN2S |
| Molecular Weight | 189.03 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bromoisothiazole Standards
- 3-Bromoisothiazole-4-carbonitrile (CAS 1268247-73-9)
- 4-Bromoisothiazole-3-carbaldehyde (CAS 88982-79-0)
- 4-Bromoisothiazole-5-carbaldehyde (CAS 5242-62-6)
- 5-Bromoisothiazole-4-carboxylic acid (CAS 1651166-54-9)
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- 5-Bromoisothiazole-3-carboxylic acid (CAS 4576-89-0)
- 3-Bromoisothiazole (CAS 55512-82-8)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com