Based on the provided information, it appears that the CAS number is not available. However, I can still generate a product description for the chemical name provided.

Poly[[N-isopropylacrylamide-co-[N-[3-(dodecyldimethylammonio)propyl]acrylamide]-co-(1,3,5-triacryloyl) is a versatile polymer known for its unique thermoresponsive properties, making it particularly valuable in biomedical applications. This compound exhibits a lower critical solution temperature (LCST), allowing it to transition from hydrophilic to hydrophobic states in response to temperature changes. Such characteristics make it ideal for use in drug delivery systems, where it can encapsulate therapeutic agents and release them in a controlled manner based on body temperature. Additionally, its cationic nature enhances its interaction with negatively charged biological membranes, improving cellular uptake and efficacy in gene therapy applications.

Moreover, this polymer can be utilized in the development of smart hydrogels for tissue engineering, providing a supportive matrix that can respond to environmental stimuli. Its ability to form stable structures while maintaining biocompatibility makes it a preferred choice for researchers looking to innovate in the fields of regenerative medicine and controlled release formulations. With its unique properties and broad range of applications, this polymer stands out as a promising material for advancing scientific research and industrial applications.