Di(propylene glycol) butyl ether, mixture of isomers,1000 µg/mL,MeOH,1mL,

2-(Methylthio)benzothiazole, >98%, 25g

p-Xylene Impurity Standard with Internal Standards 11 Analytes each Wt.% as listed; Units: 1x1mL, 5x1mL + ISTD, neat Chiron No. Name Wt. % Name Wt. % 1299.5 n-Pentane 0.15 1265.8 p-Xylene 98.65 1242.8 n-Octane 0.15 1266.8m-Xylene 0.15

17 alpha(H),21 alpha(H)-Hopane, 50µg/mL in Isooctane, 1ml