Internal Standard for AB SIM Back Catalog number: 94541 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679866 1,2-Dibromo-4-(1,2-dibromoethyl)cyclohexane, 100 µ Price on request 94885 Benzo(a)pyrene & Fluoranthene Price on request 50201 Fluoride (F-) Price on request