DR. EHRENSTORFER

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1,4-Dimethylnaphthalene, 50mg

1,4-Dinitrobenzene, 250mg

"1,4-Dioxane 1000 µg/mL in p/t Methanol", 1ml

1,4-Dioxane, 1ml

1,4-Naphthoquinone, 250mg