4,7-Dibromo-1H-indazole CAS 1316273-52-5
| CAS No. | 1316273-52-5 |
| Molecular Formula | C7H4Br2N2 |
| Molecular Weight | 275.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4,7-Dibromo-1H-indazole 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.
4,7-Dibromo-1H-indazole (CAS 1316273-52-5), molecular formula C7H4Br2N2 and molecular weight 275.93 g/mol, is a CATO reference standard with documented purity and traceability.
4,7-Dibromo-1H-indazole (C7H4Br2N2) contains a nitrile group, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H4Br2N2 |
| Molecular Weight | 275.93 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.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Dibromo Standards
- 3,4-Dibromo-7-azaindole (CAS 1000340-33-9)
- 4,6-Dibromo-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-66-8)
- 3,6-Dibromo-1H-pyrrolo[3,2-c]pyridine (CAS 1000341-69-4)
- 3,4-Dibromo-1H-pyrrolo[3,2-c]pyridine (CAS 1000341-83-2)
- 106072-43-9 2,6-Dibromo-1H-benzimidazole DTXSID20544178 (CAS 106072-43-9)
- 3,5-Dibromo-1H-pyrrolo[2,3-b]pyridine (CAS 1086389-94-7)
- 3,5-Dibromo-1H-pyrrolo[3,2-b]pyridine (CAS 1190311-07-9)
- 3,6-Dibromo-1H-pyrrolo[3,2-b]pyridine (CAS 1190312-18-5)
Recommended Standards
- 3-(Dibromomethyl)picolinonitrile (CAS 126570-65-8)
- 2,3-Dibromoimidazo[1,2-a]pyridine (CAS 1333222-44-8)
- 3,8-Dibromoimidazo[1,2-a]pyridine (CAS 1263062-05-0)
- 4,5-Dibromo-1H-indazole (CAS 1351668-28-4)
- Ethyl 5-hydroxy-2-(methylthio)-7-oxo-8-phenyl-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate (CAS 1253791-97-7)
- 2-(4-Methoxyphenyl)-benzofuran-5-carboxylic acid methyl ester (CAS 551002-32-5)
- Ethyl 5-ethylisoxazole-3-carboxylate (CAS 90607-22-0)
- 2-((4-Chlorophenyl)sulfonyl)-3-hydrazinoprop-2-enenitrile (CAS 68342-62-1)
- Lithium 2-(pyrimidin-4-yl)acetate (CAS 1956356-31-2)
- 2-(3-Hydroxy-5-methyl-4H-pyrazol-4-yl)acetamide (CAS 99357-27-4)
- (S)-3-(Hydroxymethyl)-1-methylpiperazine-2,5-dione (CAS 155225-26-6)
- Methyl 2-oxo-3-(phenylsulfonyl)-2H-chromene-6-carboxylate (CAS 895645-53-1)
- 2-Phenyl-1-(1H-pyrrol-2-yl)ethanone (CAS 13169-74-9)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com