Sigma-Aldrich
Homovanillic Acid
4-羟基-3-甲氧基苯乙酸
Iron
铁
L-Homocysteic acid
L-同型半胱氨酸
Lead
铅
蜗牛凝集素, Lectin from Helix pomatia
黑色素, Melanin
Molybdenum
钼