4-Nitrophenyl Chloroformate CAS 7693-46-1

1. 4-Nitrophenyl chloroformate is primarily used as a highly active chloroformate reagent for introducing the 4-nitrophenyloxycarbonyl (PNP) protecting group or activating carboxylic acids and alcohols in peptide synthesis and bioconjugation.
2. 4-Nitrophenyl chloroformate CAS 7693-46-1 serves as a key intermediate for synthesizing carbonates, carbamates, and other functionalized organic compounds in pharmaceutical and agrochemical research.
3. This compound is also utilized in polymer chemistry for surface modification and as a cross-linking agent.

1. Store 4-nitrophenyl chloroformate under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, well-ventilated place, away from moisture, heat, and incompatible materials.
2. Keep 4-Nitrophenyl chloroformate CAS 7693-46-1 the container tightly sealed and clearly labeled. Store separately from water, alcohols, amines, bases, and oxidizing agents.
3. Handle with extreme caution using appropriate personal protective equipment (PPE): chemical-resistant gloves, safety goggles, face shield, and an acid-resistant lab coat. Always use a fume hood.

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 or wet materials.** Carefully cover the spill with an inert, dry absorbent (e.g., sand, vermiculite). Place all contaminated material in a sealed, labeled hazardous waste container.
3. Prevent 4-Nitrophenyl chloroformate CAS 7693-46-1 from entering drains, sewers, or the environment. Decontaminate tools and surfaces with a dry inert material first. Seek expert assistance for cleanup.

1. 4-Nitrophenyl chloroformate is **highly corrosive, moisture-sensitive, and toxic**. It causes severe skin burns, eye damage, and respiratory damage. It reacts violently with water, alcohols, and bases, releasing heat and toxic/corrosive gases (hydrogen chloride, phosgene, 4-nitrophenol).
2. 4-Nitrophenyl chloroformate CAS 7693-46-1 is combustible and may emit highly toxic fumes (hydrogen chloride, phosgene, nitrogen oxides, carbon monoxide) when heated or in a fire.
3. **Always consult the official 4-nitrophenyl chloroformate Safety Data Sheet (SDS) and handle it as a severe health, corrosion, and reactivity hazard.** Specialized training for chloroformates is required.