EPA Method 537 Analyte Primary Dilution Standard (linear isomers only), 1.2ml, methanol Back Catalog number: EPA-537PDSL-R1 Availability: In the manufacturer's stock Price on request - + Recommended 31461 1,1,2-Trichloroethane Price on request 676541 Diethyl sulfide, 1ml Price on request 1447.9-100MG 2-n-Amylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 4861-58-9 Price on request