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 10346.18-25MG Duloxetine hydrochloride Price on request 53064 Spiking Standard 1 Price on request 9058.7-K-IP 4,5,6-Trichloroguaiacol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 2668-24-8 Price on request