ラクトン
rakuton
1. lactone
Noun
#171137
1. lactone
1. Is not lactone.; It is not a lactone.
1. Was a lactone.
1. Wasn't lactone.
1. with lactone; by lactone
1. Wasn't lactone.
1. Was lactone.
1. Was not lactone.; It was not lactone.
1. If lactone; When lactone
1. If lactone; When lactone