Method 1640 Tuning Standard Back Catalog number: 52147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0151.17-500-IO 4-n-Pentyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147792-34-5 Price on request 50288 STD - CRQL Price on request 3893.5-100-ME 3-Methyl-2-buten-1-thiol,100 µg/mL,MeOH,1mL, Price on request