IR3535

IR3535 (CAS 52304-36-6) is a synthetic amino acid derivative registered under EC 257-835-0 and commercially known under the trade names Merck 3535 and Repellent 3535. It is also referenced in technical literature as AI 3-70763 and IR 3535, and belongs to the amines category of specialty chemicals.

In personal care formulations, IR3535 functions as a humectant by attracting and retaining moisture within the skin barrier, supporting hydration in leave-on products such as lotions and creams. Its low skin irritation profile makes it suitable for sensitive-skin formulations where ingredient tolerance is a primary consideration.

IR3535 is supplied as an oil-phase liquid and falls under HS code 29241990 for customs classification. It is subject to REACH registration requirements within the European Union, and procurement teams should confirm supplier documentation including Safety Data Sheets and certificates of analysis prior to sourcing.