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Alfa Aesar™ 4,4'-Methylenebis(phenyl isocyanate), 98%

Chemical Identifiers

Chemical Name or Material 4,4'-Methylenebis(phenyl isocyanate)
CAS 101-68-8
Molecular Formula C15H10N2O2
Formula Weight 250.26g/mol
MDL Number MFCD00036131
UN Number UN2811
Beilstein 797662
Synonym 4,4'-Diphenylmethane diisocyanate; MDI
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAL1574014

 
alfa aesar™
L15740-14
25g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.

AAL1574022

 
alfa aesar™
L15740-22
100g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.

AAL1574036

 
alfa aesar™
L15740-36
500g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Description & Specifications

Specifications

Melting Point 41° to 44°C
Boiling Point 194°C (5mmHg)
Quantity 25g
Flash Point 196°C (385°F)
Odor Weak, Characteristic
Chemical Name or Material 4,4'-Methylenebis(phenyl isocyanate)
CAS 101-68-8
Assay 98%
Molecular Formula C15H10N2O2
Formula Weight 250.26g/mol
MDL Number MFCD00036131
UN Number UN2811
Beilstein 797662
Synonym 4,4'-Diphenylmethane diisocyanate; MDI
Health Hazard 1 Danger
Health Hazard 2 GHS H Statement
H330-H334-H351-H373-H315-H319-H317-H335
Fatal if inhaled.
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Suspected of causing cancer.
May cause damage to organs through prolonged or repeated exposure.
Causes skin irritation.
Causes serious eye irritation.
May cause an allergic skin reaction.
May cause respiratory irritation.
Health Hazard 3 GHS P Statement
P260-P280h-P304+P340-P310
Do not breathe dust/fume/gas/mist/vapors/spray.
Wear protective gloves/clothing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician.
Recommended Storage −30° to −10°C
DOT Information Transport Hazard Class: 6.1; Packing Group: II; Proper Shipping Name: TOXIC SOLIDS, ORGANIC, N.O.S.
RTECS Number NQ9350000
TSCA TSCA

Applications
4,4′-Methylenebis(phenyl isocyanate) acts as a monomer in the production of polyurethane. The rigid polyurethane foams are good thermal insulators, which find applications in all freezers and refrigerators, as well as in buildings. It is also used as an industrial strength adhesive, which is available to end consumers as various high-strength bottled glue preparations.

Solubility
Insoluble in water. Soluble in acetone, benzene and kerosene.

Notes
Incompatible with water, amines, strong bases, alcohols and oxidizing agents.

Safety and Handling

Danger

GHS P Statement
P260-P280h-P304+P340-P310
Do not breathe dust/fume/gas/mist/vapors/spray.
Wear protective gloves/clothing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician.

GHS H Statement
H330-H334-H351-H373-H315-H319-H317-H335
Fatal if inhaled.
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Suspected of causing cancer.
May cause damage to organs through prolonged or repeated exposure.
Causes skin irritation.
Causes serious eye irritation.
May cause an allergic skin reaction.
May cause respiratory irritation.

−30° to −10°C