Diphenylphosphoryl Azide CAS 26386-88-9

1. Diphenylphosphoryl azide is primarily used as a versatile reagent for the Curtius rearrangement, converting carboxylic acids to isocyanates, and for generating azides from alcohols.
2. Diphenylphosphoryl azide CAS 26386-88-9 serves as a key reagent in peptide coupling (forming amide bonds) and in the synthesis of heterocycles, carbamates, and pharmaceuticals.
3. This compound is also utilized in organic synthesis for the preparation of acyl azides and as a safe source of hydrazoic acid in situ.

1. Store diphenylphosphoryl azide in a cool, dry, well-ventilated place, under an inert atmosphere if possible, and away from heat, shock, friction, and incompatible materials. Refrigeration is often recommended.
2. Keep Diphenylphosphoryl azide CAS 26386-88-9 the container tightly sealed and clearly labeled. Store separately from reducing agents, acids, bases, heavy metals, and combustible materials. **Avoid contact with water or moisture**.
3. Handle with extreme caution using appropriate personal protective equipment (PPE): chemical-resistant gloves, safety goggles, face shield, and a blast-resistant lab coat. Always use a fume hood and explosion-proof equipment.

1. Immediately evacuate and isolate a large area. Do not touch spilled material. Alert authorities and explosive specialists.
2. **Do NOT attempt cleanup.** Secure Diphenylphosphoryl azide CAS 26386-88-9 the area, prevent access, and wait for trained explosive/hazardous materials personnel. Keep away from water.
3. Prevent any material from entering drains, sewers, or the environment. Decontamination must be performed by experts only.

1. Diphenylphosphoryl azide is **highly toxic, corrosive, and moisture-sensitive.** It causes severe skin burns, eye damage, and respiratory damage. Harmful if swallowed or inhaled. Decomposes to release **highly toxic and explosive hydrazoic acid (HN3) gas**.
2. **IT IS A SEVERE EXPLOSION HAZARD.** Diphenylphosphoryl azide CAS 26386-88-9 is shock-sensitive, friction-sensitive, and heat-sensitive. Can detonate violently, especially when concentrated, heated, or contaminated.
3. **This material must only be handled by qualified personnel with specialized training in explosives and high-energy materials.** Always consult the official diphenylphosphoryl azide Safety Data Sheet (SDS) and comply with all explosive regulations (e.g., ATF, OSHA). Use minimal quantities and extreme engineering controls.