Internal Reference Standard Back Catalog number: 52187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675202 D6-Phosmet, 10mg Price on request 680186 2,4,6-Trinitrotoluene, 100 µg/ml, Acetonitrile, Price on request 677560 2-Ethylhexyl salicylate, 250mg Price on request