| 异名/同义词 | .ALPHA.-PYRONE-5-CARBOXYLIC ACID 2-OXO-1(2H)-PYRAN-5-CARBOXYLIC ACID 2-OXO-2H-PYRAN-5-CARBOXYLIC ACID 2-OXOPYRAN-5-CARBOXYLIC ACID 2-PENTENEDIOIC ACID, 4-(HYDROXYMETHYLENE)-, .DELTA.-LACTONE COUMALIC ACID COUMALIC ACID [MI] CUMALIC ACID GLUTACONIC ACID, 4-(HYDROXYMETHYLENE)-, .DELTA.-LACTONE NSC-22978
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