3-Hydroxy-3-methyl-4-carboxybutyl-coa 3-Hydroxy-3-methyl-4-carboxybutyl-coenzyme A 78901-91-4 Coenzyme A, 3-hydroxy-3-methyl-4-carboxybutyl- Coenzyme A, S-(4-carboxy-3-hydroxy-3-methylbutyl)- Hmcb-coa