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sulfate", "active_type": "Precipitant", "concentration": 2.0, "units": "M", "pH": null}, {"ingredient": "Spermine", "active_type": "Additive", "concentration": 1.0, "units": "mM", "pH": null}], [{"ingredient": "Magnesium chloride", "active_type": "Salt", "concentration": 20.0, "units": "mM", "pH": null}, {"ingredient": "PIPES", "active_type": "Buffer", "concentration": 0.05, "units": "M", "pH": 7.5}, {"ingredient": "Polyethylene glycol 8,000", "active_type": "Precipitant", "concentration": 4.0, "units": "w/v", "pH": null}, {"ingredient": "Spermine", "active_type": "Additive", "concentration": 1.0, "units": "mM", "pH": null}], [{"ingredient": "Magnesium chloride", "active_type": "Salt", "concentration": 15.0, "units": "mM", "pH": null}, {"ingredient": "Barium chloride", "active_type": "Salt", "concentration": 2.0, "units": "mM", "pH": null}, {"ingredient": "PIPES", "active_type": "Buffer", "concentration": 0.05, "units": "M", "pH": 7.5}, {"ingredient": "2-Propanol", "active_type": "Precipitant", "concentration": 7.0, "units": "v/v", "pH": null}, {"ingredient": "Spermine", "active_type": "Additive", "concentration": 0.5, "units": "mM", "pH": null}], [{"ingredient": "Magnesium chloride", "active_type": "Salt", "concentration": 20.0, "units": "mM", "pH": null}, {"ingredient": "PIPES", "active_type": "Buffer", "concentration": 0.05, "units": "M", "pH": 7.5}, {"ingredient": "1,6-Hexanediol", "active_type": "Precipitant", "concentration": 10.0, "units": "w/v", "pH": null}, {"ingredient": "Spermine", "active_type": "Additive", "concentration": 1.0, "units": "mM", "pH": null}], [{"ingredient": "Magnesium chloride", "active_type": "Salt", "concentration": 10.0, "units": "mM", "pH": null}, {"ingredient": "HEPES", "active_type": "Buffer", "concentration": 0.05, "units": "M", "pH": 7.5}, {"ingredient": "2-methyl-2,4-pentanediol BCC", "active_type": "Precipitant", "concentration": 15.0, "units": "v/v", "pH": null}, {"ingredient": "Spermine", "active_type": "Additive", "concentration": 1.5, "units": "mM", "pH": null}], [{"ingredient": "Calcium chloride", "active_type": "Salt", "concentration": 0.2, "units": "mM", "pH": null}, {"ingredient": "HEPES", "active_type": "Buffer", "concentration": 0.05, "units": "M", "pH": 7.5}, {"ingredient": "Polyethylene glycol 400", "active_type": "Precipitant", "concentration": 28.0, "units": "v/v", "pH": null}, {"ingredient": "Spermine", "active_type": "Additive", "concentration": 2.0, "units": "mM", "pH": null}], [{"ingredient": "Copper (II) chloride", "active_type": "Salt", "concentration": 2.0, "units": "mM", "pH": null}, {"ingredient": "tris chloride BCC", "active_type": "Buffer", "concentration": 0.05, "units": "M", "pH": 8.5}, {"ingredient": "Lithium sulfate", "active_type": "Precipitant", "concentration": 1.8, "units": "M", "pH": null}, {"ingredient": "Spermine", "active_type": "Additive", "concentration": 0.5, "units": "mM", "pH": null}]]}