4,4'-Diphenylmethane diisocyanate

Base Information

• Chemical Name: 4,4'-Diphenylmethane diisocyanate
• CAS No.: 26447-40-5
• Deprecated CAS: 142690-07-1,153986-89-1,201528-77-0,53633-14-0,55157-41-0,57460-66-9,77090-48-3,88001-94-9,97568-33-7,1211266-59-9,1211316-64-1,1220313-65-4,1400594-70-8,1533423-48-1,1588489-56-8,2031250-39-0,2056146-02-0,12125-47-2,156580-59-5,28515-38-0,65916-89-4,327155-87-3,10031-75-1,1211266-59-9,1211316-64-1,1220313-65-4,1400594-70-8,1533423-48-1,153986-89-1,1588489-56-8,201528-77-0,2031250-39-0,2056146-02-0,53633-14-0,55157-41-0,57460-66-9,77090-48-3,97568-33-7
• Molecular Formula: C15H10N2O2
• Molecular Weight: 250.25
• European Community (EC) Number: 202-966-0,500-040-3,247-714-0
• ICSC Number: 0298
• NSC Number: 9596
• UN Number: 2206,2489
• UNII: B0LO6BBS8C
• DSSTox Substance ID: DTXSID7025180
• Nikkaji Number: J3.231J
• Wikipedia: Methylene_diphenyl_diisocyanate
• Wikidata: Q417646
• Metabolomics Workbench ID: 58595
• ChEMBL ID: CHEMBL1488467
• Mol file: 26447-40-5.mol

Synonyms:1,1'-methylenebis(4-isocyanatobenzene);1,1-methylenebis(phenyl)diisocyanate;4,4'-diisocyanatodiphenylmethane;4,4'-diphenylmethane diisocyanate;4,4'-methylene bisphenyl diisocyanate;4,4'-methylenebis(phenylisocyanate);4,4'-methylenediphenyl diisocyanate;diphenylmethane diisocyanate;diphenylmethane-4,4'-diisocyanate;methylene diphenyl diisocyanate;methylenebis(phenyl isocyanate);p,p'-diphenylmethane diisocyanate

Chemical Property of 4,4'-Diphenylmethane diisocyanate

Chemical Property:

• Appearance/Colour: Light yellow, clear liquid
• Melting Point: 42-45℃
• Boiling Point: 373.4 °C at 760 mmHg
• Flash Point: 154 °C
• PSA: 58.86000
• Density: 1.13 g/cm³
• LogP: 3.21200
• Storage Temp.: 2-8°C
• XLogP3: 5.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 4
• Exact Mass: 250.074227566
• Heavy Atom Count: 19
• Complexity: 332
• Transport DOT Label: Poison

Purity/Quality:

99.9% ^*data from raw suppliers

4,4′-MDI analytical standard ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn
• Statements: 20-36/37/38-42/43
• Safety Statements: 23-36/37-45

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Plastics & Rubber -> Diisocyanates,Plastics & Rubber -> Polymers
• Canonical SMILES: C1=CC(=CC=C1CC2=CC=C(C=C2)N=C=O)N=C=O
• Recent ClinicalTrials: Pilot Study of Ensifentrine or Placebo Delivered Via pMDI in Hospitalized Patients With COVID-19
• Inhalation Risk: Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
• Effects of Short Term Exposure: Lachrymation. The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the lungs. This may result in impaired functions.
• Effects of Long Term Exposure: Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma.
• Description: Methylene diphenyl diisocyanate (MDI) is a white, odorless diisocyanate that may also occur in crystalline form. It exists in three isomers, (2,20-MDI,2,40-MDI, and 4,40-MDI), however, the primary technical/commercial form of MDI is actually polymeric MDI, which is a mixture that contains 25–80% monomeric 4,40-MDI as well as oligomers containing three to six rings and other minor isomers, such as the 2,20-isomer the 4,40 isomer. MDI is most widely used and accounted for 62% of the global market in 2000.
• Uses: MDI is used to produce polyurethane foams for application in a wide range of retail, commercial, and industrial uses to protect cement, wood, fiberglass, steel, and aluminum surfaces such as truck beds, trailers, boats, foundations, and decks. MDI is also used as a high strength adhesive in industrial and consumer applications.