3,3'-Dimethyl-4,4'-biphenylene diisocyanate

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CAS:91-97-4
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CAS:91-97-4
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CAS:91-97-4
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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'-BIPHENYLENE DIISOCYANATE;3,3'-DIMETHYL-4,4'-BIPHENYLENEIISOCYANATE;4,4’-biorthotolylenediisocyanate;4,4’-diisocyanato-3,3’-dimethyl-1,1’-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 Structure
3,3'-Dimethyl-4,4'-biphenylene diisocyanate Chemical Properties
Melting point 70-72°C
Boiling point 195-197°C (667 Pa)
density 1.197 (80°C)
refractive index 1.5800 (estimate)
Fp 218°C
storage temp. 0-10°C
CAS DataBase Reference91-97-4(CAS DataBase Reference)
EPA Substance Registry System3,3'-Dimethyl-4,4'-diphenylene diisocyanate (91-97-4)
Safety Information
RTECS DV3960000
HS Code 29291090
MSDS Information
3,3'-Dimethyl-4,4'-biphenylene diisocyanate Usage And Synthesis
Reactivity ProfileIsocyanates 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)].
Safety ProfilePoison 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
Tag:3,3'-Dimethyl-4,4'-biphenylene diisocyanate(91-97-4) Related Product Information
Dimethyl ether Dimethyl phthalate 3,3'-Dimethyl-4,4'-biphenylene diisocyanate Hexamethylene Diisocyanate 1,4-Phenylene diisocyanate 2,4-DIMETHYLPHENYL ISOCYANATE O-Tolidine P-TOLYL ISOCYANATE 4-AMINO-3-METHYLBIPHENYL 2-Methylphenyl isocyanate 3,3'-Dimethylbiphenyl 4-BIPHENYLYL ISOCYANATE Dimethyl sulfoxide Dimethyl fumarate Dimethyl sulfide Isophorone diisocyanate N,N-Dimethylformamide DIISOCYANATE