HOAtn

Could you please clarify what HOAtn refers to? In many chemical contexts, HOAt stands for 1-hydroxy-7-aza-benzotriazole (a coupling additive used in peptide synthesis), but "HOAtn" is not a standard or widely recognized term on its own. If you mean HOAt (or a specific compound named HOAtn in a particular field), I can generate a precise, neutral, wiki-style article under 300 words. Please provide the intended domain (chemistry, biology, technology, etc.) or any context or source you have.