4-Bromo-3,6-dichloro-1H-indazole CAS 887568-33-4
| CAS No. | 887568-33-4 |
| Molecular Formula | C7H3BrCl2N2 |
| Molecular Weight | 265.92 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-Bromo-3,6-dichloro-1H-indazole.
4-Bromo-3,6-dichloro-1H-indazole (CAS 887568-33-4) is a high-purity analytical reference standard with the molecular formula C7H3BrCl2N2 and a molecular weight of 265.92 g/mol.
The molecular framework of 4-Bromo-3,6-dichloro-1H-indazole (C7H3BrCl2N2) is characterized by a nitrile group, chlorine/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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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-Bromo-3,6-dichloro-1H-indazole 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 | C7H3BrCl2N2 |
| Molecular Weight | 265.92 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1987 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-Bromo-2,6-dichloro-1H-benzo[d]imidazole (CAS 1035390-50-1)
- 5-Bromo-2,4-dichloro-1H-1,3-benzimidazole (CAS 1388025-14-6)
- 7-Bromo-2,4-dichloro-1H-benzo[d]imidazole (CAS 1388030-79-2)
- 2-Bromo-4,7-dichloro-1H-benzo[d]imidazole (CAS 1388031-84-2)
- 5-Bromo-2,7-dichloro-1H-1,3-benzimidazole (CAS 1388060-80-7)
- 5-Bromo-2,6-dichloro-1H-1,3-benzimidazole (CAS 1388070-64-1)
- 3-Bromo-4,6-dichloropyrazolo[1,5-a]pyridine (CAS 1427501-64-1)
- 2-bromo-5,7-dichloro-1H-benzimidazole (CAS 173460-77-0)
Recommended Standards
- 3-Bromo-6,8-dichloroimidazo[1,2-a]pyridine (CAS 952183-48-1)
- 4-Bromo-3,7-dichloro-1H-indazole (CAS 2168934-16-3)
- 3-Bromo-4,6-dichloro-1H-pyrrolo[2,3-b]pyridine (CAS 2092716-47-5)
- 4-Bromo-5,6-dichloro-1H-indazole (CAS 2368910-22-7)
- Diethyl 2-amino-5-((tert-butoxycarbonyl)amino)terephthalate (CAS 657412-79-8)
- (4-(Aminomethyl)piperidin-1-yl)(3-iodophenyl)methanone (CAS 1589429-75-3)
- 1,2-Dimethyl-1H-imidazo[4,5-b]pyridine (CAS 34452-84-1)
- 1-(benzenesulfonyl)-3-bromopropan-2-one (CAS 60156-13-0)
- 5,6,7,8-Tetrahydropyrido[3,4-d]pyridazin-1(2H)-one hydrochloride (CAS 1956334-34-1)
- Ethyl 3-{[2-(1h-indol-3-yl)ethyl]amino}propanoate (CAS 14487-98-0)
- 2-Hydroxy-3-(4-iodophenyl)propanoic acid (CAS 1487718-39-7)
- 5-(1-Benzylpyrrolidin-2-yl)-N,N-diethylpyridin-2-amine (CAS 1352518-76-3)
- Methyl 1-methyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1011398-02-9)
- Insulin Detemir (CAS 169148-63-4)
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