Robuta

https://www.cdc.gov/niosh/npg/npgd0601.html CDC - NIOSH Pocket Guide to Chemical Hazards - Tetraethyl lead (as Pb) Lead tetraethyl, TEL, Tetraethylplumbane Colorless liquid (unless dyed red, orange, or blue) with a pleasant, sweet odor. [Note: Main usage is in anti-knock... niosh pocket guidechemical hazardstetraethyl leadcdc