Caffeine

Sterol Standard Mixture for ISO 12078 neat mixture in 1mL sealed ampoule (Ref 9.1.2) For Qualitative analysis after silylation 2900.27 Cholesterol 600µg 3913.28 Campesterol 100µg 3767.29 Stigmasterol 100µg 2717.29 Sitosterol

PAH Standard

4-Hydroxy-2',3',4',5'-tetrachlorobiphenyl, 10mg