이 원료는 다음의 구조를 갖는 아이소프로필알코올과 p-하이드록시벤조익애씨드의 에스터이다.

Isopropyl 4-hydroxybenzoate: Isopropylparaben is in the parabens family of preservatives used by the food, pharmaceutical, and personal care product industries. Parabens mimic estrogen, are potential hormone (endocrine) system disruptors, and were found in the breast cancer tumors of 19 of 20 women studied (Darbre 2004). The Centers for Disease Control and Prevention (CDC) tested urine from a group of 2,548 Americans over the age of 6 and found parabens in over 99% of samples (Calafat 2010). Isopropylparaben is closely related to propylparaben, a compound considered to be a potential human endocrine system disruptor by the European Commission on Endocrine Disruption (EU 2007). Isopropylparaben appears to be more strongly estrogenic than propylparaben (Vo 2010), but receives a lower hazard score in Skin Deep because of the limited amount of toxicological research on this chemical. Subsequent research and agency assessments may find isopropylparaben to be as or more hazardous to the endocrine system than propylparaben.

本品は、パラヒドロキシ安息香酸のイソプロピルエステルであり、次の化学式で表される。