5-Bromo-2,1,3-benzoxadiazole CAS 51376-06-8
| CAS No. | 51376-06-8 |
| Molecular Formula | C6H3BrN2O |
| Molecular Weight | 199.00 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 5-Bromo-2,1,3-benzoxadiazole.
5-Bromo-2,1,3-benzoxadiazole (CAS 51376-06-8), molecular formula C6H3BrN2O and molecular weight 199.00 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Bromo-2,1,3-benzoxadiazole (C6H3BrN2O) is characterized by an amide group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Bromo-2,1,3-benzoxadiazole 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 | C6H3BrN2O |
| Molecular Weight | 199.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 4-Bromobenzo[c][1,2,5]oxadiazole (CAS 35036-93-2)
- 5-bromo-6-hydroxypyridine-3-carbonitrile (CAS 19840-44-9)
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