Use P# 72115 Back Catalog number: 71998 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4415-20-25PEX4 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 59451 Conductance @ 20°C [84 µmho/cm] Price on request 94520 Haloacetic Mix, 1000µg/ml in MTBE, 1ml Price on request