4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE Basic information
- Product Name:
- 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
- Synonyms:
-
- 1,1’-methylenebis[4-isocyanato-3-methyl-benzen
- 5,5’-methylenebis(2-isocyanato-toluen
- 5,5’-methylenebis(2-isocyanatotoluene)
- benzene,1,11-methylenebis(4-isocyanato-3-methyl-
- diisocyanatodimethyldiphenylmethane
- isocyanicacid,esterwithdi-o-toluenemethane
- BIS(4-ISOCYANATO-3-METHYLPHENYL)METHANE
- 3,3'-DIMETHYLDIPHENYLMETHANE-4,4'-DIISOCYANATE
- CAS:
- 139-25-3
- MF:
- C17H14N2O2
- MW:
- 278.31
- Product Categories:
-
- Diphenylmethanes (for High-Performance Polymer Research)
- Functional Materials
- Reagent for High-Performance Polymer Research
- Mol File:
- 139-25-3.mol
4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE Chemical Properties
- Boiling point:
- 421.12°C (rough estimate)
- Density
- 1.1222 (rough estimate)
- refractive index
- 1.5500 (estimate)
- CAS DataBase Reference
- 139-25-3
- EPA Substance Registry System
- 3,3'-Dimethyldiphenylmethane-4,4'-diisocyanate (139-25-3)
4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE Usage And Synthesis
Uses
4,?4''-?Diisocyanato-?3,?3''-?dimethyldiphenylmeth?ane is a reagent used in the synthesis of polyurethane materials.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list.
Reactivity Profile
Isocyanates and thioisocyanates, such as 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE, are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer(1969)].
Safety Profile
Poison by intravenous route. A sensitizer. When heated to decomposition it emits toxic fumes of NOx and CN-.
4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANESupplier
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4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE(139-25-3)Related Product Information
- 2,4-Dihydroxybenzophenone
- Cobalt chloride
- Curing agent for epoxy resin
- 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
- 4,4'-DIAMINO-3,3'-DIMETHYLDIPHENYLMETHANE
- 4,4'-Diphenylmethane diisocyanate
- 2,4-DIMETHYLPHENYL ISOCYANATE
- 2-Methylphenyl isocyanate
- P-TOLYL ISOCYANATE
- 4-ETHYLPHENYL ISOCYANATE
- 4,4'-DIISOCYANATO-3,3',5,5'-TETRAETHYLDIPHENYLMETHANE