The molecular formula C4H4O2 may refer to:
The molecular formula C4H4O2 may refer to: Cyclobutanediones 1,2-Cyclobutanedione 1,3-Cyclobutanedione Cycloprop-2-ene carboxylic acid Diketene Dioxins 1,2-Dioxin 1,4-Dioxin 2-Furanone Methyl propiolate Tetrolic acid
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).