Internal Standard Back Catalog number: 93185 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95002 8151A QC Standard Price on request 2480.13-K-IO 1,2-Dihydro-3,5,8-trimethylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 30316-18-8 Price on request B197910 Benz[j]aceanthrylene and Benz[e]aceanthrylene_x000B_(70:30Mixture), 2,5mg Price on request