Cations Std. Level 4

17 alpha(H),21ß(H)-(22RS)-Homohopane, 10µg

2,3,4,6-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Stavudine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3056-17-5