81475-22-1

White to light brown crystalline powder

4-tert-Butylcalix[5]arene (CAS# 81475-22-1) is a calix[n]arene, often used as a support system for cluster complexes. The central alcohol groups of 4-tert-Butylcalix[5]arene allow for strong hydrogen bonds between itself and some alcohols in the solid state.