HR2-917-04/Natrix 2 #04 (E04), 185 ml - 0.02 M Magnesium chloride hexahydrate, 0.04 M Sodium cacodylate trihydrate pH 5.5, 40% v/v (+/-)-2-Methyl-2,4-pentanediol, 0.002 M Hexammine cobalt(III) chloride. Please note items from this supplier are non-returnable.