10-Formyl Folic Acid (>90%), 50mg

2,7-Dichloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

2-Amino-4-methoxy-6-methyl-1,3,5-triazine, 100 μg/ml, Acetonitrile, 5ml

Ethanol standard in water,0.2g/L,water, 3mL