Methylenediphenyl diisocyanate
[CAS# 26447-40-5]

Identification

• Name: Methylenediphenyl diisocyanate
• Synonyms: MDI; Bis(isocyanatophenyl)methane; 4,4¡ä-Methylenebis(phenyl isocyanate)
• Molecular Formula: C₁₅H₁₀N₂O₂
• Molecular Weight: 250.26
• CAS Registry Number: 26447-40-5
• EC Number: 247-714-0

Properties

• Density: 1.18
• Melting point: 42-45 °C

Safety Data

• Hazard Symbols: GHS08;GHS07 Danger
• Risk Statements: H351-H332-H335-H373-H315-H319-H334-H317
• Safety Statements: S23;S36/37;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin sensitization	Skin Sens.	1	H317
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Respiratory sensitization	Resp. Sens.	1	H334
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Carcinogenicity	Carc.	2	H351
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H332
Acute toxicity	Acute Tox.	2	H330
Specific target organ toxicity - single exposure	STOT SE	3	H370
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - single exposure	STOT SE	2	H335

• Transport Information: UN 2811