Sigma-Aldrich
Q 90 2-HYDROXY-3-(4-HYDROXY-3-METHYL-2-BUTEN-1-YL)-1,4-NAPHTHOQUINONE
Q132 2-CHLORO-3-ETHOXY-1,4-NAPHTHOQUINONE
Q200 1,4-NAPHTHOQUINONE 2,3-EPOXIDE
Quartz-fused