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| | 3,3'-Dimethyl-4,4'-biphenylene diisocyanate Basic information |
| Product Name: | 3,3'-Dimethyl-4,4'-biphenylene diisocyanate | | Synonyms: | 3,3'-BITOLYENE-4,4'-DI-ISO-CYANATE;3,3'-BITOLYLENE-4,4'-DIISOCYANATE;3,3'-DIMETHYLBIPHENYL-4,4'-DIYL DIISOCYANATE;3,3'-DIMETHYLDIPHENYL-4,4'-DI-ISO-CYANATE;3,3'-DIMETHYL-4,4'-BIPHENYLENEIISOCYANATE;4,4’-biorthotolylenediisocyanate;4,4’-diisocyanato-3,3’-dimethyl-1,1’-biphenyl;4,4’-diisocyanato-3,3’-dimethyl-1’-biphenyl | | CAS: | 91-97-4 | | MF: | C16H12N2O2 | | MW: | 264.28 | | EINECS: | 202-112-7 | | Product Categories: | other;Biphenyls (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research | | Mol File: | 91-97-4.mol |  |
| | 3,3'-Dimethyl-4,4'-biphenylene diisocyanate Chemical Properties |
| RTECS | DV3960000 | | HS Code | 29291090 |
| | 3,3'-Dimethyl-4,4'-biphenylene diisocyanate Usage And Synthesis |
| Uses | 4,4''-Diisocyanato-3,3''-dimethylbiphenyl is used in preparation method of high-thixotropy single-component modified silane polymer sealant comprising thixotropic agent. | | Reactivity Profile | Isocyanates and thioisocyanates, such as 3,3'-Dimethyl-4,4'-biphenylene diisocyanate, 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)]. | | Flammability and Explosibility | Not classified | | Safety Profile | Poison by intravenous
route. When heated to decomposition it
emits toxic fumes of NOx. See also
CYANATES and ESTERS. |
| | 3,3'-Dimethyl-4,4'-biphenylene diisocyanate Preparation Products And Raw materials |
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