Tri(propylene glycol)methyl ether

C27 Ring-C Monoaromatic sterane (5ß(H),10ß(CH3)/5 alpha(H),10ß(CH3)), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 98819-92-2 / 98819-91-1

2,3,4,6,7,8-Hexachlorodibenzofuran ,50 µg/mL,n-nonane,1mL,

Method 429 Internal Standard Stock Solution, 1.2ml, isooctane