NWTPH-Gx Surrogate Mix Back Catalog number: 51139 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C16174700 Phthalic acid, bis-4-methyl-2-pentyl ester, certified, 0.1g Price on request 0176.14-500-IO 2-Ethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 8916-98-8 Price on request 15900-1450-100AN5 Desmetryn, 100μg/ml in Acetonitrile, 5ml Price on request