Internal Standard for AB SIM Back Catalog number: 94541 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EN-1948ES Extraction Standard Solution, in nonane/3.2% toluene, 1,2ml Price on request 79544 Captan Price on request 2444.7-K-IP 4-Nitroanisole, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 100-17-4 Price on request