Product

Product Models
Insights
Solutions
Main Product
Methylene Diphenyl Diisocyanate
Segment
Chemicals
Main-Family
Functional Organic Products
Sub-Family
Isocyanates
Physical State

Solid

Product
4,4'-Methylene Diphenyl Diisocyanate
Abbreviation
4,4'-MDI
Names
1,1′-Methylenebis(4-Isocyanatobenzene); Bis(4-Isocyanatophenyl)Methane; 1-Isocyanato-4-[(4-Isocyanatophenyl)Methyl]Benzene; 4,4′-Methylene Diphenyl Diisocyanate; 4,4′-Diphenylmethane Diisocyanate; Methylene bis(4-Pheny Isocyanate); Pure MDI
Production
Production Production  

Description

Methylene Diphenyl Diisocyanate (MDI) is an aromatic Diisocyanate. The 4,4′ isomer is most widely used. This isomer is also known as Pure MDI. MDI reacts with polyols in the manufacture of Polyurethane.

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Products Picture
Methylene diphenyl diisocyanate isomers and applications
  Product Communicator
Title Date
  UserPic Density of 4,4'-MDI 10/27/2021
Identifiers
logo CAS Number
101-68-8
logo EC Number
202-966-0
logo ECHA InfoCard
100.002.697
logo IUPAC Name
1,1'-Methylenebis(4-Isocyanatobenzene)
logo PubChem ID
7570
Chemical Data
Chemical Formula

C15H10N2O2

Molecular Weight (g/mol)
250.25
Boiling Point (°C)
314
Melting Point (°C)
41
Sulfur Content (wt%)
0
Specific Gravity
1.23
Crude Data
API Gravity
10
Country
Product Settings
Default
Status
A
Content provided by
Transaction Name Date
Modified by UserPic   Kokel, Nicolas 8/9/2025 8:43 AM
Added by UserPic   Kokel, Nicolas 4/8/2021 9:28 AM