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

3,3'-Dimethyl-4,4'-biphenylene diisocyanate
3,3'-Dimethyl-4,4'-biphenylene diisocyanate structure
CAS No.
91-97-4
Chemical Name:
3,3'-Dimethyl-4,4'-biphenylene diisocyanate
Synonyms
TODI;nacconate200;3,3'-DIMETHYL-4;tolidinediisocyanate;3,3'-Dimethyl-4,4'-b;bitoluenediisocyanate;bitolylenediisocyanate;o-Tolidine diisocyanate;4,4'-Diisocyanato-m,m'-bitolyl;dimethyl-biphenyl diisocyanate
CBNumber:
CB2485599
Molecular Formula:
C16H12N2O2
Formula Weight:
264.28
MOL File:
91-97-4.mol

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

Melting point:
70-72°C
Boiling point:
195-197°C (667 Pa)
Density 
1.197 (80°C)
refractive index 
1.5800 (estimate)
Flash point:
218°C
storage temp. 
0-10°C
CAS DataBase Reference
91-97-4(CAS DataBase Reference)
EPA Substance Registry System
1,1'-Biphenyl, 4,4'-diisocyanato-3,3'- dimethyl-(91-97-4)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
RTECS  DV3960000
HS Code  29291090
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger P261, P285, P304+P341, P342+P311,P501
H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P284 Wear respiratory protection.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P405 Store locked up.
P501 Dispose of contents/container to..…

3,3'-Dimethyl-4,4'-biphenylene diisocyanate price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich S360902 3,3'-DIMETHYL-4,4'-BIPHENYLENE DIISOCYANATE Aldrich 91-97-4 250mg $133 2018-11-20 Buy
TCI Chemical D2051 4,4'-Diisocyanato-3,3'-dimethylbiphenyl >98.0%(GC) 91-97-4 25g $56 2018-11-22 Buy
TCI Chemical D2051 4,4'-Diisocyanato-3,3'-dimethylbiphenyl >98.0%(GC) 91-97-4 250g $338 2018-11-22 Buy

3,3'-Dimethyl-4,4'-biphenylene diisocyanate Chemical Properties,Uses,Production

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)].

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

Raw materials

Preparation Products


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

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


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