Category:
Active Pharmaceutical Ingredients
CAS NO:
104-49-4
Standard:
In-house Standards,
P-PHENYL DIISOCYANATE (PPDI) is an aromatic diisocyanate synthesized via phosgenation of p-phenylenediamine. It serves as a high-performance monomer for polyurethanes, distinguished by its symmetric structure. Its molecular formula is C8H6N2O2 and CAS number is 1072-59-3.
Strictly avoid inhalation; use full respiratory protection. Store in dry, ventilated areas below 25°C away from moisture to prevent polymerization. Do not mix with amines or alcohols directly without controlled conditions.