SODIUM LEVULINATE, sodium 4-oxopentanoate, VK44E1MQU8, Laevulinsaeure,Natriumsalz, Pentanoic acid,4-oxo-,sodium salt, sodium 4-oxovalerate, potassium 4-oxopentanoate, levulinic acid Na-salt, levulinic acid,sodium salt, sodium 4-oxidanylidenepentanoate