EPA Method 525 Internals & Surrogates Back Catalog number: 91161 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 687726 Lamotrigine, 100mg Price on request 2402.9-K-IPX5 2,3,6-Trimethylphenol-d11, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 347841-83-2 Price on request 673834 Tricyclazole, 100mg Price on request