EPA Method 524.2 - Revision 4.0 Back Catalog number: 33001 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 3621.10-50-IO 2,7-Dichloronaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 2198-77-8 Price on request 11646.10-K-ME (+/-)-Metanephrine hydrochloride,1000 µg base/mL,MeOH,1mL, Price on request 90872 Isofenphos Price on request