CAS 25854-16-4

Xylene diisocyanate

Description:

Xylene diisocyanate (XDI), with the CAS number 25854-16-4, is an organic compound belonging to the class of isocyanates. It is characterized by the presence of two isocyanate functional groups (-N=C=O) attached to a xylene backbone, which is derived from the aromatic hydrocarbon xylene. XDI is typically a colorless to pale yellow liquid with a pungent odor and is known for its reactivity, particularly in forming polyurethanes through polymerization with polyols. It is used in various applications, including coatings, adhesives, and elastomers. Due to its isocyanate groups, XDI can be hazardous; it is classified as an irritant to the skin, eyes, and respiratory system, and appropriate safety measures should be taken when handling it. Additionally, it is important to note that XDI can undergo hydrolysis in the presence of moisture, leading to the formation of urea derivatives. Proper storage and handling practices are essential to mitigate risks associated with its toxicity and reactivity.

Formula: C₁₀H₈N₂O₂

InChI: InChI=1/C10H8N2O2/c1-7-8(2)10(12-6-14)4-3-9(7)11-5-13/h3-4H,1-2H3

SMILES: Cc1c(C)c(ccc1N=C=O)N=C=O

Synonyms:

• 1,2-Bis(Isocyanatomethyl)Benzene
• Benzene, bis(isocyanatomethyl)-
• Bis(isocyanatomethyl)benzene
• Diisocyanatomethylbenzene
• Isocyanic acid, phenylenedimethylene ester
• Phenylenedimethylene isocyanate
• XDI
• Xylylene diisocyanate
• p-Xylene bis-isocyanate
• ω,ω′-Diisocyanatodimethylbenzene