Cucurbit(n)urils

**Definition:** A group of barrel-shaped imidazolines composed of (n) glycoluril monomers linked by methylene bridges and are often abbreviated CB[n] or CB*[n]. They have a high binding affinity to CATIONS and neutral molecules.

**Tree numbers:** - D03.383.129.308.432.001 - D03.633.100.273

**Synonyms:** - Cucurbit(n)uril - Cucurbituril