ChemicalBook >> CAS DataBase List >>4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
- 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;4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
- CBNumber:
- CB1408120
- Molecular Formula:
- C17H14N2O2
- Molecular Weight:
- 278.31
- MDL Number:
- MFCD00019910
- MOL File:
- 139-25-3.mol
Last updated:2024-12-18 14:07:02
| Boiling point | 421.12°C (rough estimate) |
|---|---|
| Density | 1.1222 (rough estimate) |
| refractive index | 1.5500 (estimate) |
| CAS DataBase Reference | 139-25-3 |
| FDA UNII | 3D7H11TIK1 |
| 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 price More Price(4)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Biosynth Carbosynth | FD62629 | 4,4'-Diisocyanato-3,3'-dimethyldiphenylmethane | 139-25-3 | 10g | $376 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0011252 | 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE 95.00% | 139-25-3 | 1G | $694.85 | 2021-12-16 | Buy |
| Biosynth Carbosynth | FD62629 | 4,4'-Diisocyanato-3,3'-dimethyldiphenylmethane | 139-25-3 | 25g | $752 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0011252 | 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE 95.00% | 139-25-3 | 5G | $1038.05 | 2021-12-16 | Buy |
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
Global( 17)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81148696 +86-15536356810 | 1022@dideu.com | China | 3882 | 58 |
| J & K SCIENTIFIC LTD. | 010-82848833 400-666-7788 | jkinfo@jkchemical.com | China | 94657 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 021-61259108 18621169109 | market03@meryer.com | China | 40228 | 62 |
| Energy Chemical | 021-021-58432009 400-005-6266 | sales8178@energy-chemical.com | China | 44688 | 61 |
| 9ding chemical ( Shanghai) Limited | 4009209199 | sales@9dingchem.com | China | 22514 | 55 |
| Shandong Ono Chemical Co., Ltd. | 0539-6362799 20） | China | 9998 | 58 | |
| Carbosynth | -- | sales@carbosynth.com | United Kingdom | 6005 | 58 |
View Lastest Price from 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-07-18 | 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
139-25-3
|
US $0.00-0.00 / KG | 1KG | 99.0% | 1000KG | Shaanxi Dideu Medichem Co. Ltd |
-
- 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
139-25-3
- US $0.00-0.00 / KG
- 99.0%
- Shaanxi Dideu Medichem Co. Ltd
139-25-3(4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE)Related Search:
1,1’-methylenebis[4-isocyanato-3-methyl-benzen
5,5’-methylenebis(2-isocyanato-toluen
5,5’-methylenebis(2-isocyanatotoluene)
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diisocyanatodimethyldiphenylmethane
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4,4''-DIISOCYANATO-3,3-DIMETHYLDIPHENYLMETHANE 98+%
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3,3'-Dimethyldiphenylmethane-4,4'-diisocyanate
4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
139-25-3
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