Sigma-Aldrich
L -Homocysteic acid
L -同型半胱氨酸
Lead
蜗牛凝集素, Lectin fromHelix pomatia
黑色素, Melanin
Molybdenum
MOPS hemisodium salt
MOPS 半钠盐
N-Benzoyl- L -tyrosine p-nitroanilide
Nickel