Methylene diphenyl diisocyanate
IUPAC: 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene
| Formula / Notation | C15H10N2O2 |
|---|---|
| CAS Number | 101-68-8 |
| Molecular Weight | 250.25 |
| Melting Point | 99 °F (NTP, 1992) |
| Boiling Point | 381 to 390 °F at 5 mmHg (NTP, 1992) |
| Density | 1.2 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | Insoluble (NTP, 1992) |
| Appearance | Diphenylmethane-4,4-diisocyanate is a light yellow colored solid. It is not soluble in water. It may be toxic by ingestion, inhalation, or skin absorption. If in a solution it may or may not burn d... |
| Also Known As | 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene; 101-68-8; 4,4'-Diphenylmethane diisocyanate; Diphenylmethane diisocyanate; Bis(4-isocyanatophenyl)methane; 4,4'-Methylenebis(phenyl isocyanate); Isonate; Desmodur 44; p,p'-Diphenylmethane diisocyanate; 1,1'-Methylenebis(4-isocyanatobenzene) |
| Category | Organic Compounds |
What is Methylene diphenyl diisocyanate?
Diphenylmethane-4,4'-diisocyanate is a diisocyanate consisting of diphenylmethane with two isocyanate groups at the 4- and 4'-positions. It has a role as an allergen and a hapten. It derives from a hydride of a diphenylmethane.
Formula & Notation
IUPAC Name: 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene
Other Names / Synonyms: 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene; 101-68-8; 4,4'-Diphenylmethane diisocyanate; Diphenylmethane diisocyanate; Bis(4-isocyanatophenyl)methane; 4,4'-Methylenebis(phenyl isocyanate); Isonate; Desmodur 44; p,p'-Diphenylmethane diisocyanate; 1,1'-Methylenebis(4-isocyanatobenzene)
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 99 °F (NTP, 1992) |
| Boiling Point | 381 to 390 °F at 5 mmHg (NTP, 1992) |
| Density | 1.2 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Molecular Weight | 250.25 |
| Solubility | Insoluble (NTP, 1992) |
| Appearance | Diphenylmethane-4,4-diisocyanate is a light yellow colored solid. It is not soluble in water. It may be toxic by ingestion, inhalation, or skin absorption. If in a solution it may or may not burn d... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Diphenylmethane-4,4'-diisocyanate is a diisocyanate consisting of diphenylmethane with two isocyanate groups at the 4- and 4'-positions. It has a role as an allergen and a hapten. It derives from a hydride of a diphenylmethane.
Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.
Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.
The formula or notation for Methylene diphenyl diisocyanate is: C15H10N2O2