ChemicalBook--->CAS DataBase List--->91-97-4

91-97-4

91-97-4 Structure

91-97-4 Structure
IdentificationMore
[Name]

3,3'-Dimethyl-4,4'-biphenylene diisocyanate
[CAS]

91-97-4
[Synonyms]

3,3'-BITOLYENE-4,4'-DI-ISO-CYANATE
3,3'-BITOLYLENE-4,4'-DIISOCYANATE
3,3'-DIMETHYL-4,4'-BIPHENYLENE DIISOCYANATE
3,3'-DIMETHYL-4,4'-BIPHENYLENEIISOCYANATE
3,3'-DIMETHYLBIPHENYL-4,4'-DIYL DIISOCYANATE
3,3'-DIMETHYLDIPHENYL-4,4'-DI-ISO-CYANATE
4,4'-DIISOCYANATO-3,3'-DIMETHYLBIPHENYL
4,4’-biorthotolylenediisocyanate
4,4’-diisocyanato-3,3’-dimethyl-1,1’-biphenyl
4,4’-diisocyanato-3,3’-dimethyl-1’-biphenyl
bitoluenediisocyanate
bitolylenediisocyanate
isocyanicacid,3,3’-dimethyl-4,4’-biphenyleneester
isocyanicacid,3,3’-dimethyl-4,4’-biphenylyleneester
nacconate200
tolidinediisocyanate
dimethyl-biphenyl diisocyanate
TODI
4,4'-Diisocyanato-m,m'-bitolyl
o-Tolidine diisocyanate
[EINECS(EC#)]

202-112-7
[Molecular Formula]

C16H12N2O2
[MDL Number]

MFCD00019908
[Molecular Weight]

264.28
[MOL File]

91-97-4.mol
Chemical PropertiesBack Directory
[Melting point ]

70-72°C
[Boiling point ]

195-197°C (667 Pa)
[density ]

1.197 (80°C)
[vapor pressure ]

0.003Pa at 25℃
[refractive index ]

1.5800 (estimate)
[Fp ]

218°C
[storage temp. ]

0-10°C
[solubility ]

soluble in Toluene
[form ]

pellet
[color ]

White to Almost white
[Water Solubility ]

594.08μg/L at 25℃
[LogP]

6.052 at 25℃
[CAS DataBase Reference]

91-97-4(CAS DataBase Reference)
[EPA Substance Registry System]

91-97-4(EPA Substance)
Safety DataBack Directory
[RTECS ]

DV3960000
[TSCA ]

TSCA listed
[REACH Registrations]

Active
[HS Code ]

29291090
[Safety Profile]

Poison by intravenous route. When heated to decomposition it emits toxic fumes of NOx. See also CYANATES and ESTERS.
Hazard InformationBack Directory
[Reactivity Profile]

Isocyanates and thioisocyanates, such as 3,3'-DIMETHYL-4,4'-DIPHENYLENE 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)].
[Uses]

4,4''-Diisocyanato-3,3''-dimethylbiphenyl is used in preparation method of high-thixotropy single-component modified silane polymer sealant comprising thixotropic agent.
[Flammability and Explosibility]

Notclassified
Spectrum DetailBack Directory
[Spectrum Detail]

3,3'-Dimethyl-4,4'-biphenylene diisocyanate(91-97-4)MS
3,3'-Dimethyl-4,4'-biphenylene diisocyanate(91-97-4)1HNMR
3,3'-Dimethyl-4,4'-biphenylene diisocyanate(91-97-4)IR1
3,3'-Dimethyl-4,4'-biphenylene diisocyanate(91-97-4)IR2
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

91-97-4(sigmaaldrich)
[TCI AMERICA]

4,4'-Diisocyanato-3,3'-dimethylbiphenyl,>98.0%(T)(91-97-4)
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