Internal Standard Spiking Solution, 1.2ml, nonane Back Catalog number: EPA-513ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 8539.18-100MG n-Pentyl iso-pentyl phthalate (n-Pentyl 3-methlybutyl phthalate), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 776297-69-9 Price on request 675980 D5-Atrazine, 100 µg/ml, Acetone, 1ml Price on request 680464 alpha-Methylstyrene, 1ml Price on request