3-Bromo-6-nitro-1H-indazole CAS 70315-68-3
| CAS No. | 70315-68-3 |
| Molecular Formula | C7H4BrN3O2 |
| Molecular Weight | 242.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Bromo-6-nitro-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.
CATO supplies 3-Bromo-6-nitro-1H-indazole (CAS 70315-68-3), a certified reference material (molecular formula C7H4BrN3O2, MW 242.03 g/mol) for analytical method development and quality control.
The molecular framework of 3-Bromo-6-nitro-1H-indazole (C7H4BrN3O2) is characterized by an amide group, a carboxylic acid 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 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).
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.
Physical & Chemical Properties
| Molecular Formula | C7H4BrN3O2 |
| Molecular Weight | 242.03 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 3-Bromo-5-nitro-1H-indazole (CAS 67400-25-3)
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- 3-Bromo-6-nitroimidazo[1,2-a]pyridine (CAS 52310-42-6)
- 3-(Difluoromethyl)-4-methoxyaniline (CAS 1261609-79-3)
- N-benzyl-N-ethyl-4-nitrobenzamide (CAS 349396-05-0)
- 2-(6-Methyl-2,4-dioxo-1,2,4,5-tetrahydro-3h-pyrrolo[3,2-d]pyrimidin-3-yl)acetic acid (CAS 1255777-80-0)
- 351062-23-2 3-Amino-3-[1-(4-nitrophenyl)-1H-pyrrol-2-yl]propanoic acid MFCD02140235 (CAS 351062-23-2)
- 63868-76-8 Phthalazine, 1-hydrazino-4-methyl-, hydrochloride C-6130 4-Methyl-1-hydrazinophthalazine hydrochloride (CAS 63868-76-8)
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- 3-((4-Chlorophenyl)thio)-1-(3,4-dichlorophenyl)propan-1-one (CAS 882749-37-3)
- Delicious Peptide (bovine) (CAS 73984-05-1)
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