4,5-Dibromothiophene-2-carbonitrile CAS 54521-49-2
| CAS No. | 54521-49-2 |
| Molecular Formula | C5HBr2NS |
| Molecular Weight | 266.94 g/mol |
| 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 4,5-Dibromothiophene-2-carbonitrile.
4,5-Dibromothiophene-2-carbonitrile (CAS 54521-49-2), molecular formula C5HBr2NS and molecular weight 266.94 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5HBr2NS, 4,5-Dibromothiophene-2-carbonitrile contains a nitrile group, sulfur-containing functionality, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 266.94 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4,5-Dibromothiophene-2-carbonitrile 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 | C5HBr2NS |
| Molecular Weight | 266.94 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dibromothiophene Standards
- 2,4-Dibromothiophene-3-carbonitrile (CAS 1256651-68-9)
- 4,5-Dibromothiophene-3-carbonitrile (CAS 1823961-00-7)
- 2,5-Dibromothiophene-3-carbonitrile (CAS 18792-01-3)
- 2,4-Dibromothiophene-3-carbaldehyde (CAS 1257070-67-9)
- 3,4-Dibromothiophene-2-carbaldehyde (CAS 32896-02-9)
- 4,5-Dibromothiophene-2-carbaldehyde (CAS 38071-22-6)
- 4,5-Dibromothiophene-3-carbaldehyde (CAS 61200-56-4)
- 2,5-Dibromothiophene 1,1-Dioxide (CAS 89088-95-9)
Recommended Standards
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