Roxithromycin-d7, 2,5mg

Isopropylphenyl phosphate (monoisopropylmonophenyl phosphate),100 µg/mL,isooctane,1mL,

1H,1H,2H,2H-Perfluorododecyl acrylate

1,2,3,4,5,6,8-Heptachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane