title: Molecules related to Tris and some derivatives that protect haemoglobin during freeze-drying.
mesh_terms: D005612:Freeze Drying; D006454:Hemoglobins; D008706:Methemoglobin / Q000032:analysis; D010108:Oxyhemoglobins / Q000032:analysis; D013048:Specimen Handling / Q000379:methods*; D013329:Structure-Activity Relationship; D014325:Tromethamine / Q000494:pharmacology*
chemical_list: D006454:Hemoglobins; D010108:Oxyhemoglobins; D014325:Tromethamine; D008706:Methemoglobin