Description

2,6-Dichloropyrimidine (CAS: 3934-20-1) is a high-purity heterocyclic organic compound with the molecular formula C₄H₂Cl₂N₂, widely utilized in pharmaceutical and agrochemical research. This crystalline solid serves as a versatile building block for synthesizing pyrimidine derivatives, offering excellent reactivity for nucleophilic substitution reactions. With a molecular weight of 148.98 g/mol and a purity of ≥98%, it is ideal for coupling reactions, cross-coupling catalysis, and medicinal chemistry applications. Proper storage under inert conditions ensures stability and longevity. Suitable for researchers requiring precise intermediates for drug discovery, material science, and specialty chemical development.

Properties

• CAS Number: 3934-20-1
• Complexity: 78.4
• IUPAC Name: 2,4-dichloropyrimidine
• InChI: InChI=1S/C4H2Cl2N2/c5-3-1-2-7-4(6)8-3/h1-2H
• InChI Key: BTTNYQZNBZNDOR-UHFFFAOYSA-N
• Exact Mass: 147.9595035
• Molecular Formula: C4H2Cl2N2
• Molecular Weight: 148.98
• SMILES: C1=CN=C(N=C1Cl)Cl
• Topological: 25.8
• Monoisotopic Mass: 147.9595035
• Synonyms: 2,4-Dichloropyrimidine, 3934-20-1, 2,6-Dichloropyrimidine, Pyrimidine, 2,4-dichloro-, NSC 20212, YV96122OCD, DTXSID9049293, EINECS 223-508-6, NSC 37531, NSC 49119, NSC-20212, NSC-37531, NSC-49119, Pyrimidine,2,4-dichloro-, 2-CHLOROPYRIMIDIN-4-YL CHLORIDE, AI3-26561, DTXCID4029149, 223-508-6, 2,4-Dichloro-pyrimidine, 2,4-dichlorpyrimidin, MFCD00006061, Pyrimidine,4-dichloro-, 2,4-dichloro pyrimidine, 2,4dichloropyrimidine, 2,4 dichlorpyrimidine, 2,4-dichloropyrimidin, 2,4-dichloropyrmidine, 2,4-dichlorpyrimidine, Pazopanib Intermediates, 2,4-Dicloropyrimidine, 2,4 dichloropyrimidine, 2.4-dichloropyrimidine, 2,4-dichloro-pyrmidine, 2, 4-dichloropyrimidine, 2,4 dichloro pyrimidine, 2,4- dichloropyrimidine, 2,4-di-chloropyrimidine, 2,4-dichloropyri-midine, UNII-YV96122OCD, SCHEMBL63023, SCHEMBL792018, 2,4-Dichloropyrimidine, 98%, SCHEMBL1374067, CHEMBL3188699, ALBB-006256, BCP27299, CS-B0776, NSC20212, NSC37531, NSC49119, Tox21_202830, SBB048117, STK503789, AKOS000280292, AB00576, AC-2499, FD03383, PS-5432, NCGC00260376-01, BP-12063, SY001677, CAS-3934-20-1, DB-005858, D2310, NS00030565, ST50946655, EN300-18947, Z99601188, F0001-1106, InChI=1/C4H2Cl2N2/c5-3-1-2-7-4(6)8-3/h1-2

Application

2,6-Dichloropyrimidine is a key intermediate in the synthesis of active pharmaceutical ingredients (APIs) and agrochemicals. It is commonly employed in Suzuki-Miyaura and Buchwald-Hartwig cross-coupling reactions to construct complex heterocyclic scaffolds. Researchers also use it to develop nucleoside analogs, kinase inhibitors, and antiviral agents. Its reactivity makes it valuable for modifying pyrimidine cores in drug discovery pipelines.

Safety and Hazards

GHS Hazard Statements

• H315 (93.5%): Causes skin irritation [Warning Skin corrosion/irritation]
• H317 (10.8%): May cause an allergic skin reaction [Warning Sensitization, Skin]
• H319 (92.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (90.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P272, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P333+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (93.5%)
• Skin Sens. 1 (10.8%)
• Eye Irrit. 2 (92.5%)
• STOT SE 3 (90.3%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.