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pesare 30,0 ± 0,1 mg di triptamina monocloridrato (4.2.3) in un matraccio tarato da 100 ml (5.6) e portare alla tacca con metanolo (4.2.1).
weigh 30,0 ± 0,1 mg of tryptamine-monohydrochloride (4.2.3) into a 100 ml volumetric flask (5.6) and make up to the mark with methanol (4.2.1)