EPA Method 507 Pesticides Back Catalog number: 95463 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3914.16-100-ME Crotaline, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 315-22-0 Price on request 672860 Imazethapyr, 100mg Price on request 0978.10-K-IOX10 Naphthalene-d8, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 1146-65-2 Price on request