IPA: /ˌkɛm.oʊ.tækˈsɒn.ə.mɪk/
KK: /kɛmoʊˌtæksəˈnɑmɪk/
Relating to the classification of organisms based on their biochemical characteristics.
The chemotaxonomic analysis revealed new insights into the plant species' relationships.
Chemotaxonomic → It is formed from "chemo-" (from Greek "chēmeia", meaning chemistry) and "taxonomic" (from Greek "taxis", meaning arrangement, and "nomos", meaning law). The term refers to the classification of organisms based on their chemical composition and characteristics.
Think of 'chemistry' ('chemo-') being used to 'arrange' ('taxis') and 'law' ('nomos') in the classification of living things.
No commonly confused words.