2-Chloro-5-nitrobenzoyl Chloride CAS 25784-91-2

1. 2-Chloro-5-nitrobenzoyl chloride CAS 25784-91-2 is primarily used as an acylating agent and key intermediate in the synthesis of pharmaceuticals, agrochemicals, and dyes.
2. 2-Chloro-5-nitrobenzoyl chloride serves as a versatile building block for constructing complex amides, esters, and other functionalized nitro-aromatic compounds.
3. This compound is also utilized in polymer chemistry and materials science research.

1. Store 2-chloro-5-nitrobenzoyl chloride CAS 25784-91-2 in a cool, dry, well-ventilated place, away from heat, moisture, and incompatible materials (water, alcohols, bases, oxidizing agents).
2. Keep the container tightly sealed under an inert atmosphere if possible, and clearly labeled. Handle and open containers only in a dry environment (e.g., glovebox or dry glovebag) if moisture sensitivity is critical.
3. Handle 2-Chloro-5-nitrobenzoyl chloride with extreme caution using appropriate personal protective equipment (PPE): chemical-resistant gloves, safety goggles, face shield, and acid-resistant lab coat. Always use a fume hood to avoid inhalation of vapors and corrosive mists.

1. Immediately evacuate and isolate the area. Ensure ventilation and wear full protective gear (gloves, goggles, protective clothing, respirator suitable for acid vapors/chlorides).
2. **Do NOT use water.** Carefully cover or contain the spill with an inert, dry absorbent material (e.g., sand, vermiculite). Place all contaminated material in a sealed, labeled hazardous waste container.
3. Prevent 2-Chloro-5-nitrobenzoyl chloride from entering drains, sewers, or the environment. Decontaminate tools and surfaces with a dry inert material first, then carefully clean with a non-aqueous solvent if necessary, following all regulations. Seek expert assistance.

1. 2-Chloro-5-nitrobenzoyl chloride CAS 25784-91-2 is **highly corrosive and moisture-sensitive**. It causes severe skin burns, eye damage, and respiratory damage. It is harmful if swallowed or inhaled. Reacts violently with water, alcohols, and bases, releasing heat and toxic/corrosive gases (hydrogen chloride, possibly phosgene and nitro fumes).
2. 2-Chloro-5-nitrobenzoyl chloride is combustible and may be shock-sensitive (nitro compound). When heated or in fire, it emits highly toxic fumes (hydrogen chloride, nitrogen oxides, phosgene, carbon monoxide).
3. Always consult the official 2-chloro-5-nitrobenzoyl chloride Safety Data Sheet (SDS) and handle it as a severe health, corrosion, and reactivity hazard. Specialized training and procedures for acid chlorides are required.