4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
- Product Name
- 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
- Formula Weight
- 278.31
- MOL File
- 139-25-3.mol
4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE Property
- 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
- 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,
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation
H410Very toxic to aquatic life with long lasting effects
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P285In case of inadequate ventilation wear respiratory protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P304+P341IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P312Call a POISON CENTER or doctor/physician if you feel unwell.
P321Specific treatment (see … on this label).
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P342+P311IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P362Take off contaminated clothing and wash before reuse.
P391Collect spillage. Hazardous to the aquatic environment
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- FD62629
- Product name
- 4,4'-Diisocyanato-3,3'-dimethyldiphenylmethane
- Packaging
- 10g
- Price
- $376
- Updated
- 2021/12/16
- Product number
- CHM0011252
- Product name
- 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
- Purity
- 95.00%
- Packaging
- 1G
- Price
- $694.85
- Updated
- 2021/12/16
- Product number
- FD62629
- Product name
- 4,4'-Diisocyanato-3,3'-dimethyldiphenylmethane
- Packaging
- 25g
- Price
- $752
- Updated
- 2021/12/16
- Product number
- CHM0011252
- Product name
- 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE
- Purity
- 95.00%
- Packaging
- 5G
- Price
- $1038.05
- Updated
- 2021/12/16
4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE Chemical Properties,Usage,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
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View Lastest Price from 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE manufacturers
- Product
- 4,4'-DIISOCYANATO-3,3'-DIMETHYLDIPHENYLMETHANE 139-25-3
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99.0%
- Supply Ability
- 1000KG
- Release date
- 2024-07-18