4-bromo-2-methyl-2H-indazole CAS 590417-93-9
| CAS No. | 590417-93-9 |
| Molecular Formula | C8H15BrN2 |
| Molecular Weight | 219.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-bromo-2-methyl-2H-indazole is closely related to a nitrile group, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-bromo-2-methyl-2H-indazole (CAS 590417-93-9), molecular formula C8H15BrN2 and molecular weight 219.12 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H15BrN2, 4-bromo-2-methyl-2H-indazole contains a nitrile group, bromine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 219.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H15BrN2 |
| Molecular Weight | 219.12 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related bromo Standards
- 3-bromo-6-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-28-2)
- 3-bromo-5-methyl-1H-pyrrolo[3,2-b]pyridine (CAS 1000343-73-6)
- 2-bromo-1-cyclohexylpropan-1-one (CAS 101714-60-7)
- 1-Bromo-6-(prop-2-yn-1-yloxy)hexane (CAS 102294-00-8)
- (2-Bromo-5,5-dimethylcyclohex-1-en-1-yl)methanol (CAS 1053265-67-0)
- 5-Bromo-2-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1111638-02-8)
- 4-bromo-3-methyl-1H-indazole (CAS 1159511-73-5)
- 7-bromo-3-methyl-1H-indazole (CAS 1159511-75-7)
Recommended Standards
- 4-Bromo-1-methyl-1H-indazole (CAS 365427-30-1)
- 4-Bromo-6-methyl-1H-indazole (CAS 885521-94-8)
- 4-(Bromomethyl)-1-methyl-2-oxabicyclo[2.2.2]octane (CAS 2137033-85-1)
- 4-bromocinnoline (CAS 69002-73-9)
- 0126AD 1185077-23-9 4-[(2-Methyl-2-propenyl)oxy]piperidine hydrochloride C9H18ClNO (CAS 1185077-23-9)
- N-((1-Ethylpyrrolidin-2-yl)methyl)-4-methoxy-2-methylpyrimidine-5-carboxamide (CAS 72412-52-3)
- 4-(1-Hydrazonoethyl)-2-thioxo-1,2-dihydropyrimidine-5-carboxylic acid (CAS 62327-92-8)
- tert-Butyl 3-bromophenylsulfonylcarbamate (CAS 1034175-17-1)
- 2-Amino-6,7-dihydrobenzo[d]oxazol-4(5H)-one (CAS 1936355-29-1)
- (1-(2-Aminophenyl)-4-methylpiperidin-4-yl)methanol (CAS 2022266-19-7)
- Ethyl 3-chloro-4-cyano-5-methyl-1H-pyrrole-2-carboxylate (CAS 861034-53-9)
- 2-Chloro-6-(difluoromethyl)-5-hydroxynicotinaldehyde (CAS 1805265-04-6)
- Methyl 2-methyl-3-[(3-methylbutan-2-yl)amino]propanoate (CAS 1154155-37-9)
- Peptide Impurity 28 (CAS 1350456-64-2)
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