DR. EHRENSTORFER

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1,3-Diethylbenzene, 100mg

1,3-Dimethyl urea, 250mg

1,3-Dimethyl-2-nitrobenzene (2-Nitro-m-xylene), 250mg

1,3-Dimethylnaphthalene, 50mg

1,3-Dinitrobenzene 10 µg/mL in Methanol, 10ml