EPA Method 525 Pesticide Standard Back Catalog number: 92134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70931 2,4-DB methyl ester Price on request 2543.20-100MG Amitriptyline hydrochloride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 549-18-8 Price on request 681358 Phenylbutazone, 100mg Price on request