Monomeric MDI (4,4'-MDI)

CAS:101-68-8
Code:MDI-44
Formula:C15H10N2O2

Monomeric 4,4'-MDI delivers high purity and controlled reactivity for specialty polyurethane elastomers, CASE applications, and prepolymer manufacture. It supports excellent mechanical strength, chemical resistance, and dimensional stability in demanding end uses.

Available from Arpadis, a European chemical distributor supplying isocyanates to manufacturers across Europe since 1999.

Technical Specifications

Molecular FormulaC15H10N2O2
Molecular Weight250.25
Melting Point39–42°C
Boiling Point196°C at 5 mmHg
Density1.23 g/cm³ (25°C)
Purity≥99.5% 4,4'-MDI
Nco Content33.6% NCO

Values shown are typical specification targets; request the latest Technical Data Sheet for certified ranges.

Availability & Supply

Arpadis distributes Monomeric MDI (4,4'-MDI) across Europe with supply chain coverage from our offices in Belgium, France, Italy, the UK, and Portugal. Request a quote for pricing and lead times, or contact us for technical data sheets (TDS) and safety data sheets (SDS).

European distributionISO 9001:2015 certifiedResponsible Care

Applications

High-performance polyurethane elastomers
CASE applications
prepolymer manufacture
specialty adhesives

Chemical Features

crosslinking

About Arpadis

Arpadis is a family-owned European chemical distribution company active since 1999. With ISO 9001:2015 certification and Responsible Care commitment, Arpadis supplies specialty chemicals — including isocyanates — to coatings, adhesives, plastics, and foam manufacturers across Europe.