英文同义词: | 2-Oxo-2H-pyran-5-carboxylic acid, 2-Pyrone-5-carboxylic acid;6-Oxopyran-3-carboxylic acid;a-Pyrone-5-carboxylic acid;α-Pyrone-5-carboxylic acid;Coumalic acid, 5-Carboxy-2-pyrone;2H-Pyran-5-carboxylic acid, 2-oxo;CouMalic acid 97%;CouMalic Acid, 97.0%(GC&T |