Methyl 5-chloropyrazine-2-carboxylate CAS 33332-25-1

1. Methyl 5-chloropyrazine-2-carboxylate is a key building block in the synthesis of pyrazine-containing pharmaceuticals, including the hypoxia-activated prodrug (TH-302) for antitumor applications .
2. methyl 5-chloropyrazine-2-carboxylate CAS 33332-25-1 is utilized in the total synthesis of antitubercular drugs and serves as an important intermediate in the development of bioactive heterocyclic compounds .
3. Methyl 5-chloropyrazine-2-carboxylate is employed as a versatile reagent in organic synthesis for the preparation of substituted pyrazines via nucleophilic aromatic substitution reactions, enabling the introduction of various functional groups .
4. In medicinal chemistry research, methyl 5-chloropyrazine-2-carboxylate is used as a reference standard and building block for the synthesis of compounds with potential therapeutic applications .

1. Methyl 5-chloropyrazine-2-carboxylate 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. methyl 5-chloropyrazine-2-carboxylate CAS 33332-25-1 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 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 Methyl 5-chloropyrazine-2-carboxylate is released .
2. Collect methyl 5-chloropyrazine-2-carboxylate CAS 33332-25-1 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. Methyl 5-chloropyrazine-2-carboxylate 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 methyl 5-chloropyrazine-2-carboxylate CAS 33332-25-1 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 Methyl 5-chloropyrazine-2-carboxylate 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 .