PCB Congener Surrogate Standard Mix Back Catalog number: 94568 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9145 2-Nitrophenol Price on request 71839 N-Nitrosodimethylamine-d6 Price on request 9284.17-K-ME Sertraline hydrochloride, 1000µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 79559-97-0 Price on request