EPA Method 525 - Perchlorinates Back Catalog number: 30029 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0202.22-100-T Dibenz[a,c]anthracene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 215-58-7 Price on request 681472 D12-Benzo[a]pyrene, 10.0 µg/ml, Acetonitrile, 10 Price on request 12114.4-10MG Metformin-d6 hydrochloride (dimethyl-d6),neat,neat,10mg, Price on request