Thorium (Th) Back Catalog number: 57390 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59508 Element Mix #2 Price on request 1497.24-K-IO 2-Methyltricosane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1928-30-9 Price on request S-4415-20-25PE ISO 9377-2MOD Extraction Solvent Stock Solution I 20ul of n-Heptane and 20mg of n-Tetracontane solved in 1000ml n-Pentane Price on request