What is another word for open chain?
Pronunciation: [ˈə͡ʊpən t͡ʃˈe͡ɪn] (IPA) 
There are various synonyms for the term "open chain" in organic chemistry. Some of the most common ones include "acyclic," "straight chain," and "linear." These terms are often used interchangeably to refer to organic compounds that do not have a ring structure. Other synonyms that are occasionally used include "non-cyclic," "unbranched," and "unchained." While many of these terms are more descriptive than "open chain," they all refer to the same basic concept. Organic compounds can have either an open chain or a cyclic structure, and the nature of their structure can have a significant impact on their chemical properties and reactivity.
