5-Bromo-3,4-dichloro-2-methylpyridine, 97% CAS 1188023-88-2
| CAS No. | 1188023-88-2 |
| Molecular Formula | C6H4BrCl2N |
| Molecular Weight | 240.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 240.91 g/mol gives 5-Bromo-3,4-dichloro-2-methylpyridine, 97% distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Bromo-3,4-dichloro-2-methylpyridine, 97% (CAS 1188023-88-2), molecular formula C6H4BrCl2N and molecular weight 240.91 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H4BrCl2N, 5-Bromo-3,4-dichloro-2-methylpyridine, 97% contains a nitrile group, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 240.91 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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), 5-Bromo-3,4-dichloro-2-methylpyridine, 97% 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 | C6H4BrCl2N |
| Molecular Weight | 240.91 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 methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 5-Bromo-2-chloro-3-(chloromethyl)pyridine (CAS 1017782-64-7)
- 3-bromo-5-chloro-4-(chloromethyl)pyridine (CAS 1064678-67-6)
- 4-Bromo-3,5-dichloro-2-methylpyridine (CAS 1188088-31-4)
- 2-Bromo-3,5-dichloroaniline (CAS 1211214-30-0)
- 3-Bromo-6-chloro-2-(chloromethyl)pyridine (CAS 1211589-21-7)
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- 2-Bromo-6-chloro-3-(chloromethyl)pyridine (CAS 1227584-81-7)
- 2-Bromo-6-chloro-4-(chloromethyl)pyridine (CAS 1227584-85-1)
Recommended Standards
- 3-(Bromomethyl)-2,5-dichloropyridine (CAS 1141990-05-7)
- 2,3,4,5-Tetrachlorobenzonitrile (CAS 36245-95-1)
- 4-Bromomethylphenyl-1,3,2-dioxaborolane (CAS 488133-21-7)
- 2-(Bromomethyl)-3,5-dichloropyridine (CAS 1227502-19-3)
- 2-(2-Fluoro-[1,1'-biphenyl]-4-yl)acetonitrile (CAS 69168-31-6)
- 2-Amino-4-(2H-tetrazol-5-yl)phenol (CAS 924860-65-1)
- Methyl 1,3,5-trimethylpyrazole-4-carboxylate (CAS 25016-19-7)
- 4-Bromo-5-fluoro-2-methylbenzaldehyde (CAS 861928-26-9)
- n-(2-Methylcyclopentyl)cyclohexanamine (CAS 1342686-82-1)
- 3-[(4-methoxyphenyl)sulfanyl]propanenitrile (CAS 102236-72-6)
- (5-Chlorothiophen-2-yl)(3-(3-(furan-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)methanone (CAS 1428379-94-5)
- 2-Phenylpropane-d12 (CAS 97732-82-6)
- 5-(Tributylstannyl)-1,3-thiazole (CAS 157025-33-7)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
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