3,3'-DIMETHOXY-4,4'-BIPHENYLENE DIISOCYANATE

About This Item

Molecular Formula	C₁₆H₁₂N₂O₄
CAS Number	91-93-0
Appearance	3,3'-dimethoxybenzidine-4,4'-diisocyanate appears as gray to brown powder or dark beige sandy powder. Melting point 112°C. Insoluble in water. Toxic by inhalation and ingestion. A skin irritant. Used in making plastics.

FC-0131713

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Properties

Chemical Identifiers

IUPAC Name	1-isocyanato-4-(4-isocyanato-3-methoxyphenyl)-2-methoxybenzene
SMILES	COC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=C=O)OC)N=C=O
InChI Key	QZWKEPYTBWZJJA-UHFFFAOYSA-N
InChI	InChI=1S/C16H12N2O4/c1-21-15-7-11(3-5-13(15)17-9-19)12-4-6-14(18-10-20)16(8-12)22-2/h3-8H,1-2H3

Physical Properties

Boiling Point	442.5ºC at 760 mmHg
Melting Point	114.0 °C
Flash Point	170 °F
Density	1.19g/cm3

Safety Information

Hazard Class

Danger

Flash Point

170 °F

Please refer to the Safety Data Sheet (SDS) for complete handling, storage, and disposal instructions. Follow all applicable regulations when working with this chemical reagent.