Synonym(s): 4,4'-MDI; Bis(4-isocyanatophenyl)methane
Empirical Formula: C15H10N2O2
Linear Formula: CH2(C6H4NCO)2
Formula Weight: 250.25
MDL Number: MFCD00036131
Purity: 98%
Boiling Point: 200 °C/5 mmHg(lit.)
Melting Point: 42-45 °C(lit.)
Density: 1.18 g/mL at 25 °C(lit.)
Storage: −20°C
Beilstein Registry Number: 797662
Signal Word: Danger
Hazard statements: H315-H317-H319-H332-H334-H335-H351-H373
Precautionary statements: P261-P280-P305 + P351 + P338-P342 + P311
Risk Statements (Europe): 20-36/37/38-40-42/43-48/20
Safety Statements (Europe): 23-36/37-45
Hazard Codes (Europe): Xn