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A2263 SIGMA α-Amanitin from Amanita phalloides, ≥90% (HPLC), powder biological source from Amanita phalloides assay ≥90% (HPLC) form powder color white to light yellow mp 254-255 °C(lit.) solubility H2O: soluble1.0 mg/mL absorption ε1M/310 nm, H2O 13,500 storage temp. −20°C
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