2 4-Dichloropyrimidine CAS 3934-20-1

1. 2,4-Dichloropyrimidine is a versatile heterocyclic building block widely used in the synthesis of pharmaceutical compounds, including kinase inhibitors, antiviral agents, and anticancer drugs .
2. 2 4-Dichloropyrimidine CAS 3934-20-1 serves as a key intermediate in medicinal chemistry for the preparation of substituted pyrimidines, where the two chlorine atoms enable sequential nucleophilic aromatic substitution reactions for introducing diverse functional groups .
3. 2,4-Dichloropyrimidine is employed in the synthesis of agrochemicals, including herbicides, fungicides, and insecticides, as well as in the development of specialty chemicals and organic materials .
4. Researchers utilize 2 4-Dichloropyrimidine CAS 3934-20-1 as a starting material for the preparation of various heterocyclic systems, including pyrimidine-based ligands for coordination chemistry and materials science applications .

1. 2,4-Dichloropyrimidine must be stored in a tightly sealed container in a cool, dry, and well-ventilated environment, protected from light and moisture; recommended storage at 2-8°C or at -20°C for long-term stability .
2. 2 4-Dichloropyrimidine CAS 3934-20-1 is classified with GHS hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation), with signal word "Warning" .
3. Personnel must wear chemical-resistant gloves, safety goggles with side-shields, and protective clothing when handling this substance, ensuring adequate ventilation in work areas .
4. Keep 2 4-Dichloropyrimidine CAS 3934-20-1 away from incompatible materials such as strong oxidizing agents, strong acids, and strong bases to prevent decomposition; wash thoroughly after handling .

1. Isolate the spill area, ensure adequate ventilation, and wear full personal protective equipment including chemical-resistant gloves, safety goggles, and suitable dust respirator when 2,4-Dichloropyrimidine is released .
2. Collect 2 4-Dichloropyrimidine CAS 3934-20-1 by sweeping or vacuuming without creating dust using non-sparking tools, and place into suitable closed containers for disposal .
3. Avoid creating dust clouds during cleanup to prevent respiratory exposure; prevent the product from entering drains or water courses .
4. Dispose of collected material according to local, state, and federal environmental regulations through licensed chemical destruction or controlled incineration .

1. 2,4-Dichloropyrimidine is not classified as highly flammable but may decompose under fire conditions, emitting toxic fumes including carbon monoxide, carbon dioxide, nitrogen oxides (NOx), and hydrogen chloride .
2. Use water spray, dry chemical powder, carbon dioxide, or alcohol-resistant foam to extinguish fires involving the product; do NOT use a direct water jet as 2 4-Dichloropyrimidine CAS 3934-20-1 may scatter burning material .
3. Firefighters should wear self-contained breathing apparatus in pressure-demand, MSHA/NIOSH approved, and full protective gear when handling burning 2,4-Dichloropyrimidine due to hazardous decomposition gases generated by thermal decomposition .
4. During combustion, may emit irritant and toxic fumes; contain fire runoff to prevent environmental contamination .