256439
4,4′-Methylenebis(phenyl isocyanate)
98%
Manufacturer: Sigma Aldrich
CAS Number: 101-68-8
Synonym(S): 4,4′-MDI, Bis(4-isocyanatophenyl)methane
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 50 G | 256439-50-G | In Stock | ₹ 2,533.05 |
| 500 G | 256439-500-G | In Stock | ₹ 5,347.55 |
| 5 KG | 256439-5-KG | In Stock | ₹ 38,104.00 |
256439 - 50 G
In Stock
Quantity
1
Base Price: ₹ 2,533.05
GST (18%): ₹ 455.949
Total Price: ₹ 2,988.999
Quality Level
200
Assay
98%
form
solid
reaction suitability
reagent type: cross-linking reagent
bp
200 °C/5 mmHg (lit.)
mp
42-45 °C (lit.)
density
1.18 g/mL at 25 °C (lit.)
storage temp.
−20°C
SMILES string
O=C=Nc1ccc(Cc2ccc(cc2)N=C=O)cc1
InChI
1S/C15H10N2O2/c18-10-16-14-5-1-12(2-6-14)9-13-3-7-15(8-4-13)17-11-19/h1-8H,9H2
Other Options
| Image | Product Name | Manufacturer | Price Range | |
|---|---|---|---|---|
 | 4,4′-MDI | Supelco | ₹ 8,053.80 | |
 | 101-68-8 | BENZENE, 1,1'-METHYLENEBIS[4-ISOCYANATO- | A2B Chem | ₹ 1,540.08 - ₹ 3,593.52 |
Related Products
Description
- General description: 4,4′-Methylenebis(phenyl isocyanate) (MDI) is an aromatic diisocyanates class of monomer that is widely used in the production of polyurethane plastics, foam insulation, coatings, adhesives, and sealants. It is highly reactive due to the presence of two isocyanate functional groups. MDI is known for its excellent strength, durability, and resistance to chemical and environmental damage, which makes it useful in resin composition, lithographic printing plates, coating films, optical films, image display devices, semiconductor devices, and polyurethane foam production.
- Application: 4,4′-Methylenebis(phenyl isocyanate) can be used as a starting material to synthesize: Polyurethane cationomers, that are applicable in medical implants.[1]A prepolymer for preparing self-healable polyurethane elastomers.[2] It can also be used as a cross-linking agent to synthesize PEBA (polyether-block-amide) copolymer with improved mechanical properties, which are mainly used in soles, medical tubes, aerospace parts, and chemical separation. Additionally, MDI is also used as a crosslinker to covalently modify graphene oxide (GO) and enhance the corrosion resistance of polystyrene coatings. The resultant polystyrene/GO-MDI composite coatings showed superior corrosion resistance to unmodified polystyrene coatings. This approach can potentially be used to improve the durability of materials in various industrial and biomedical applications.[3][4]
SAFETY INFORMATION
Pictograms
Signal Word
Danger
Hazard Statements
Precautionary Statements
P202 - P260 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313
Hazard Classifications
Acute Tox. 4 Inhalation - Carc. 2 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation - STOT SE 3
Target Organs
Respiratory system
WGK
WGK 1
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Compare Similar Items
Show Difference
Quality Level: 200
Assay: 98%
form: solid
reaction suitability: reagent type: cross-linking reagent
bp: 200 °C/5 mmHg (lit.)
mp: 42-45 °C (lit.)
density: 1.18 g/mL at 25 °C (lit.)
storage temp.: −20°C
SMILES string: O=C=Nc1ccc(Cc2ccc(cc2)N=C=O)cc1
InChI: 1S/C15H10N2O2/c18-10-16-14-5-1-12(2-6-14)9-13-3-7-15(8-4-13)17-11-19/h1-8H,9H2
Quality Level:
200
Assay:
98%
form:
solid
reaction suitability:
reagent type: cross-linking reagent
bp:
200 °C/5 mmHg (lit.)
mp:
42-45 °C (lit.)
density:
1.18 g/mL at 25 °C (lit.)
storage temp.:
−20°C
SMILES string:
O=C=Nc1ccc(Cc2ccc(cc2)N=C=O)cc1
InChI:
1S/C15H10N2O2/c18-10-16-14-5-1-12(2-6-14)9-13-3-7-15(8-4-13)17-11-19/h1-8H,9H2
Quality Level: 100
Assay: ≥97.0% (HPLC)
form: powder
reaction suitability: __
bp: __
mp: 77-82 °C
density: __
storage temp.: −20°C
SMILES string: Cc1c(C)c(c(C)c2CCC(C)(C)Oc12)S(Cl)(=O)=O
InChI: 1S/C14H19ClO3S/c1-8-9(2)13(19(15,16)17)10(3)11-6-7-14(4,5)18-12(8)11/h6-7H2,1-5H3
Quality Level:
100
Assay:
≥97.0% (HPLC)
form:
powder
reaction suitability:
__
bp:
__
mp:
77-82 °C
density:
__
storage temp.:
−20°C
SMILES string:
Cc1c(C)c(c(C)c2CCC(C)(C)Oc12)S(Cl)(=O)=O
InChI:
1S/C14H19ClO3S/c1-8-9(2)13(19(15,16)17)10(3)11-6-7-14(4,5)18-12(8)11/h6-7H2,1-5H3
Quality Level: 200
Assay: 99%
form: liquid
reaction suitability: __
bp: 175 °C (lit.)
mp: −41.5 °C (lit.)
density: 2.88 g/mL at 20 °C (lit.)
storage temp.: __
SMILES string: BrP(Br)Br
InChI: 1S/Br3P/c1-4(2)3
Quality Level:
200
Assay:
99%
form:
liquid
reaction suitability:
__
bp:
175 °C (lit.)
mp:
−41.5 °C (lit.)
density:
2.88 g/mL at 20 °C (lit.)
storage temp.:
__
SMILES string:
BrP(Br)Br
InChI:
1S/Br3P/c1-4(2)3
Quality Level: 100
Assay: 99%
form: liquid
reaction suitability: __
bp: 40 °C (lit.)
mp: −106-−105 °C (lit.)
density: 0.691 g/mL at 25 °C (lit.)
storage temp.: __
SMILES string: CCCC#C
InChI: 1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3
Quality Level:
100
Assay:
99%
form:
liquid
reaction suitability:
__
bp:
40 °C (lit.)
mp:
−106-−105 °C (lit.)
density:
0.691 g/mL at 25 °C (lit.)
storage temp.:
__
SMILES string:
CCCC#C
InChI:
1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3