K5E1T1O1L1S1
10 points
KETOLS is validvalid
KETOL, a chemical compound [n]
KETOL, one of a series of complex nitrogenous substances, represented by methyl ketol and related to indol [n]
KETOL, a chemical compound [n]
KETOL, one of a series of complex nitrogenous substances, represented by methyl ketol and related to indol [n]