Chlorpyrifos-methyl, 100 µg/ml, Toluene, 1ml

Disulfoton, 10µg/mL in Cyclohexane, 10ml

Sterol standard mixture for ISO 18252 For Qualitative analysis, neat in 1mL sealed ampoulle 2900.27 Cholesterol 600µg 3913.28 Campesterol 100µg 3767.29 Stigmasterol 100µg 2732.29 Sitosterol 100µg 1583.30 5?-Cholestane (IS) 600µg Dissolve in 0.25mL n

Acetylsalicylic acid-d3 (methyl-d3),100 µg/mL,MeOH,1mL,