EPA Method 8270C Mix #26

2-Ethynyl-3-methylpyrazine,1000 µg/mL,isooctane,1mL,

1,2,3-Trimethylbenzene, 250mg

2 alpha,17 alpha(H),21ß(H)-2-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 126208-29-7