Vitamin D2 ,neat,neat,500mg,

2,3,5,6-Tetrabromo-p-xylene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

13C3-Atrazine-desethyl-desisopropyl, 100 µg/ml, M

Chloramphenicol