Roxithromycin-d7, 2,5mg

Mass Discrimination Test Mixture for ASTM D 5739 150 µg/mL in pesticide grade cyclohexane, 10mL Naphthalene 99 % Fluoranthene 99 % Benzo[ghi]perylene 99 %

Phenyltri-n-pentyltin,1000 µg/mL,isooctane,1mL,

Gonyautoxin-2 and -3