6-Bromo-4-hydroxy-3-chloro (1h)indazole CAS 887568-77-6
| CAS No. | 887568-77-6 |
| Molecular Formula | C7H4BrClN2O |
| Molecular Weight | 247.48 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 6-Bromo-4-hydroxy-3-chloro (1h)indazole.
6-Bromo-4-hydroxy-3-chloro (1h)indazole (CAS 887568-77-6), molecular formula C7H4BrClN2O and molecular weight 247.48 g/mol, is a CATO reference standard with documented purity and traceability.
6-Bromo-4-hydroxy-3-chloro (1h)indazole (C7H4BrClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), 6-Bromo-4-hydroxy-3-chloro (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 | C7H4BrClN2O |
| Molecular Weight | 247.48 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
- 7-Bromo-5-chloro-1H-benzo[d]imidazol-2-ol (CAS 1035390-48-7)
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- 4-Bromo-6-chloro-1H,2H,3H-pyrrolo[2,3-b]pyridin-2-one (CAS 1190322-92-9)
- 7-bromo-5-chloro-1,3-benzoxazol-2-amine (CAS 1247830-45-0)
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Recommended Standards
- 6-Bromo-4-chloro-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 2092435-45-3)
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- 6-Bromo-2-(chloromethyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 2092211-77-1)
- 6-Bromo-7-chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 52341-93-2)
- 2-(4-Bromophenyl)-6-(pentafluoro-λ6-sulfanyl)-1H-indole (CAS 1394319-71-1)
- Dexchlorpheniramine Impurity 8 (CAS 78539-96-5)
- 1-Chloro-2,5-dimethyl-3-nitrobenzene (CAS 13711-22-3)
- 6-Bromopyrrolo[2,3,4-de]isoquinolin-2(1H)-one (CAS 2504236-88-6)
- Methyl 2-amino-6-isopropyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate hydrate (CAS 1049734-91-9)
- 4-Amino-1,2-dihydropyridine-2-thione (CAS 775228-90-5)
- Picosulfate Impurity 16 (CAS 13004-51-8)
- 5-methyl-7H-pyrrolo[2,3-d]pyrimidin-2-amine (CAS 1483583-54-5)
- 61128-46-9 1,3-Isobenzofurandione, 5,5'-((1-methylethylidene)bis(4,1-phenyleneoxy))bis-, polymer with 1,3-benzenediamine (CAS 61128-46-9)
- Tetrapeptide-30/Tegopep (CAS 1036207-61-0)
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