PCB Congener Internal Standard Mix Back Catalog number: 94569 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2241.25-5MG T-2 Toxin, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 21259-20-1 Price on request 60039 Canadian Drinking Water Chlorinated Pesticides Price on request 3706.10-100-05HC Gonyautoxin-1 and -4, 106+35µM, Solvent-HCl/AcOH(Aq), Unit 0.5mL, # of units-1, Cas.no. 60748-39-2/64296-26-0 Price on request