Surrogate Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-23SSS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 9193.19-K-ME Nortriptyline-d3 hydrochloride (N-methyl-d3) Price on request 677568 Tris(2-ethylhexyl) phosphate, 250mg Price on request 0299.19-50-T 7-Methylbenz[a]anthracene, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 2541-69-7 Price on request