Menaquinone-7, 5mg

Custom mix of C9-C19 aromatic compounds 1273.9 1-Ethyl-3-methylbenzene – 250µg/mL 1272.9 1-Ethyl-4-methylbenzene – 250µg/mL 1269.9 1,3,5-Trimethylbenzene – 250µg/mL 2156.9 2-Ethyl-1-methylbenzene – 250µg/mL 1270.9 1,2,4-Trimethylbenzene – 250µg

Perfluoro-n-[1,2-13C2]undecanoic acid, 1.2ml x 50ug/ml, methanol

Pentadecafluorooctanoic acid, 100 µg/ml, Methanol