4-Bromo-7H-pyrrolo[2,3-c]pyridazine CAS 1269823-70-2
| CAS No. | 1269823-70-2 |
| Molecular Formula | C6H4BrN3 |
| Molecular Weight | 198.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Bromo-7H-pyrrolo[2,3-c]pyridazine (CAS 1269823-70-2) is a high-purity analytical reference standard with the molecular formula C6H4BrN3 and a molecular weight of 198.02 g/mol.
Owing to a nitrile group, bromine substitution, an aromatic ring system, 4-Bromo-7H-pyrrolo[2,3-c]pyridazine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 198.02 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.
As a certified reference material (CRM), 4-Bromo-7H-pyrrolo[2,3-c]pyridazine 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 | C6H4BrN3 |
| Molecular Weight | 198.02 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.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
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Recommended Standards
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- (2S)-2-amino-2-(1-(tert-butoxycarbonyl)-2,2-dimethylpiperidin-4-yl)acetic acid (CAS 2387585-50-2)
- trimethyl-1H-pyrazol-5-ol (CAS 72619-96-6)
- (4aR,5S,7R,8aR)-7-Methyl-5-(((S)-piperidin-2-yl)methyl)decahydroquinoline (CAS 66834-87-5)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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