Description
2,5-Dibromo-4-methylpyridine (CAS No. 3430-26-0) is a high-purity brominated pyridine derivative with the molecular formula C6H5Br2N. This compound is a versatile building block in organic synthesis, particularly in pharmaceutical and agrochemical research. Its structure features two bromine atoms at the 2- and 5-positions and a methyl group at the 4-position of the pyridine ring, offering excellent reactivity for cross-coupling reactions such as Suzuki-Miyaura or Buchwald-Hartwig amination. Available in ≥98% purity (GC), it is supplied as a white to off-white crystalline powder, packaged under inert conditions to ensure stability. Ideal for researchers developing novel heterocyclic compounds, catalysts, or ligands.
Properties
- CAS Number: 3430-26-0
- Complexity: 97.1
- IUPAC Name: 2,5-dibromo-4-methyl-pyridine
- InChI: InChI=1S/C6H5Br2N/c1-4-2-6(8)9-3-5(4)7/h2-3H,1H3
- InChI Key: WWJLJUAHQHXDGM-UHFFFAOYSA-N
- Exact Mass: 250.87682
- Molecular Formula: C6H5Br2N
- Molecular Weight: 250.92
- SMILES: CC1=CC(=NC=C1Br)Br
- Topological: 12.9
- Monoisotopic Mass: 248.87887
- Synonyms: 2,5-Dibromo-4-methylpyridine, 3430-26-0, DTXSID70370308, DTXCID00321343, 621-880-8, 2,5-Dibromo-4-picoline, Pyridine, 2,5-dibromo-4-methyl-, MFCD00234955, 2,5-Dibromo-4-methyl-pyridine, 2,5-dibromo-4-methypyridine, SCHEMBL151857, 2.5-Dibromo-4-methylpyridine, WWJLJUAHQHXDGM-UHFFFAOYSA-N, BCP22208, BBL103769, RB1048, SBB003142, STL557579, 2,5-Dibromo-4-methylpyridine, 97%, AKOS002664320, AB05276, AC-1549, CS-W010214, HY-W009498, PS-7470, SY015456, DB-025147, D4058, EN300-98170, Z1269154884
Application
2,5-Dibromo-4-methylpyridine is widely used as a key intermediate in the synthesis of active pharmaceutical ingredients (APIs) and specialty chemicals. Its bromine substituents enable efficient functionalization via metal-catalyzed coupling reactions, making it valuable for drug discovery and material science. The compound is also employed in the development of ligands for catalysis and as a precursor for agrochemicals. Researchers utilize it to modify pyridine-based scaffolds in medicinal chemistry programs.
Safety and Hazards
GHS Hazard Statements
- H302 (89.6%): Harmful if swallowed [Warning Acute toxicity, oral]
- H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
- H318 (85.4%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H319 (14.6%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H335 (97.9%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Precautionary Statements
- P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501
Hazard Classes and Categories
- Acute Tox. 4 (89.6%)
- Skin Irrit. 2 (100%)
- Eye Dam. 1 (85.4%)
- Eye Irrit. 2 (14.6%)
- STOT SE 3 (97.9%)
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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.


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