In the field of high-performance materials and composites, IOTA-1524 (3-ureidopropyltrimethoxysilane) is becoming a key additive attracting increasing attention from manufacturers and developers due to its unique organic-inorganic bifunctional structure.

Its chemical formula is C₇H₁₈N₂O₄Si, and its molecular weight is approximately 222.31. It is a colorless to pale yellow, transparent liquid. Its density at 25°C is approximately 1.15 g/mL, its refractive index nD is ≈ 1.46, and its flash point is approximately 99°C (closed cup method). Its boiling point is generally between ~217°C and 250°C.


IOTA-1524 contains a hydrolyzable trimethoxysilyl group and a urea functional group. This gives it a "dual bridge" role:
1.In humid environments, methoxy groups hydrolyze to form silanols (Si–OH), which further form condensation bonds with inorganic substrates (such as metals, glass, and oxide surfaces);
2.Urea groups can form hydrogen bonds or covalent bonds with organic resins (epoxy, phenolic, polyurethane, etc.), thereby enhancing adhesion and interfacial bonding.

Precisely because of this organic-inorganic compatibility, IOTA-1524 is known as an "interfacial bridge molecule," significantly improving interfacial compatibility, water resistance, and heat resistance in composites, coatings, adhesives, sealants, and other systems.

If you're looking for a silane coupling agent that promotes both adhesion and interfacial durability, IOTA-1524 is a highly competitive option. Please contact us for samples, technical information, or formulation support.