Interference Standard 4 Back Catalog number: 52041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8703.12-5MG 2,2',4,4',6-Pentachlorobiphenyl, 100µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 39485-63-1 Price on request 3432.10-100-CY MCPA-methyl ester Price on request 3153.6-K-IO Methyl pentanoate (Methyl valerate), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 624-24-8 Price on request