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4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE

4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE Structure
CAS No.
139-25-3
Chemical Name:
4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
Synonyms
diisocyanatodimethyldiphenylmethane;5,5’-methylenebis(2-isocyanato-toluen;5,5’-methylenebis(2-isocyanatotoluene);BENZENE11METHYLENEBIS4ISOCYANATO3METHYL;BIS(4-ISOCYANATO-3-METHYLPHENYL)METHANE;isocyanicacid,esterwithdi-o-toluenemethane;4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE;3,3'-DIMETHYLDIPHENYLMETHANE-4,4'-DIISOCYANATE;1,1’-methylenebis[4-isocyanato-3-methyl-benzen;benzene,1,11-methylenebis(4-isocyanato-3-methyl-
CBNumber:
CB1408120
Molecular Formula:
C17H14N2O2
Molecular Weight:
278.31
MOL File:
139-25-3.mol
Modify Date:
2023/5/4 15:14:07
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4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE 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)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS08,GHS07,GHS09
Signal word  Danger
Hazard statements  H334-H319-H315-H410-H335-H332
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P-P261-P285-P304+P341-P342+P311-P501-P264-P280-P302+P352-P321-P332+P313-P362-P261-P271-P304+P340-P312-P273-P391-P501
RTECS  NQ8820000
Toxicity mouse,LD50,intravenous,320mg/kg (320mg/kg),U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#00946,

4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE Chemical Properties,Uses,Production

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'-DIMETHYLDIPHENYLMETHANE Preparation Products And Raw materials

Raw materials

Preparation Products

4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE Suppliers

Global( 16)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
A.J Chemicals 91-9810153283 New Delhi, India 6124 58 Inquiry
ABCR GmbH & CO. KG 49 721 95061 0 Germany 6846 75 Inquiry
City Chemicals Corporation 800-248-2436 United States 6462 72 Inquiry
ASDI Incorporated 888 577 ASDI United States 6928 67 Inquiry
VWR International 800 932 5000 United Kingdom 6554 82 Inquiry
Service Chemical Inc. 888-895-6920 Germany 6373 71 Inquiry
3B Scientific Corporation 847.281.9822 United States 6744 47 Inquiry
Leancare Ltd. +33 962096793 United Kingdom 6460 42 Inquiry
Energy Chemical 021-021-58432009 400-005-6266 China 44700 61 Inquiry
Meryer (Shanghai) Chemical Technology Co., Ltd. 021-61259108 18621169109 China 40240 62 Inquiry
Supplier Advantage
A.J Chemicals 58
ABCR GmbH & CO. KG 75
City Chemicals Corporation 72
ASDI Incorporated 67
VWR International 82
Service Chemical Inc. 71
3B Scientific Corporation 47
Leancare Ltd. 42
Energy Chemical 61
Meryer (Shanghai) Chemical Technology Co., Ltd. 62

139-25-3(4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE)Related Search:

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4,4'-DIISOCYANATO-3,3',5,5'-TETRAETHYLDIPHENYLMETHANE
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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 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE 4,4'-DIISOTHIOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE BENZENE11METHYLENEBIS4ISOCYANATO3METHYL 4,4''-DIISOCYANATO-3,3-DIMETHYLDIPHENYLMETHANE 98+% 1-isocyanato-4-(4-isocyanato-3-methyl-benzyl)-2-methyl-benzene 1-isocyanato-4-[(4-isocyanato-3-methyl-phenyl)methyl]-2-methyl-benzene 1-isocyanato-4-[(4-isocyanato-3-methylphenyl)methyl]-2-methylbenzene Bis(4-isocyanato-3-methylphenyl)methane 3,3'-Dimethyldiphenylmethane-4,4'-diisocyanate 139-25-3 Diphenylmethanes (for High-Performance Polymer Research) Reagent for High-Performance Polymer Research Diphenylmethanes (for High-Performance Polymer Research) Functional Materials Reagent for High-Performance Polymer Research