CAS 4128-73-8: 4,4′-Diisocyanatodiphenyl ether

Description:4,4′-Diisocyanatodiphenyl ether, with the CAS number 4128-73-8, is an organic compound characterized by the presence of two isocyanate functional groups attached to a diphenyl ether backbone. This substance is typically a solid at room temperature and is known for its high reactivity, particularly in the formation of polyurethanes and other polymeric materials. It exhibits good thermal stability and is resistant to various chemicals, making it suitable for applications in coatings, adhesives, and elastomers. The isocyanate groups contribute to its ability to react with alcohols and amines, facilitating the formation of urethane linkages. However, it is important to handle this compound with care, as it can be hazardous; it is known to be an irritant to the skin, eyes, and respiratory system, and appropriate safety measures should be taken during its use. Overall, 4,4′-Diisocyanatodiphenyl ether is a valuable intermediate in the synthesis of advanced materials in the chemical industry.

Formula:C₁₄H₈N₂O₃

InChI:InChI=1S/C14H8N2O3/c17-9-15-11-1-5-13(6-2-11)19-14-7-3-12(4-8-14)16-10-18/h1-8H

InChI key:InChIKey=KDLIYVDINLSKGR-UHFFFAOYSA-N

SMILES:O=C=NC1=CC=C(OC2=CC=C(N=C=O)C=C2)C=C1

Synonyms:
1,1′-Oxybis[4-isocyanatobenzene]
4,4′-Diisocyanatodiphenyl ether
Benzene, 1,1′-oxybis[4-isocyanato-
Isocyanic acid, oxydi-p-phenylene ester
Oxybis(4-phenyl isocyanate)

Found 3 products.

Product data	Purity	Price range	Estimated delivery
4,4′-Oxybis(phenyl isocyanate) REF: IN-DA003KDYCAS: 4128-73-8	- - -	To inquire	Mon 21 Apr 25
4,4'-Oxybis(phenyl isocyanate) REF: 3D-FO00269CAS: 4128-73-8	Min. 95%	90.00 €~478.00 €	Wed 30 Apr 25
4,4'-Bis(isocyanatophenyl)oxide REF: TR-B448770CAS: 4128-73-8	- - -	108.00 €~336.00 €	Fri 30 May 25