GLC reference standard GLC-673-B, 100mg Back Catalog number: GLC-673-B Availability: In the manufacturer's stock Price on request - + Recommended 32103 EPA Method 551.1 Internal Standard Price on request 0603.27-100-IO alpha alpha alpha (20S)-Cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 41083-75-4 Price on request 11258.11-100-AN Dioxacarb-d3 (N-methyl-d3),100 µg/mL,acetonitrile,1mL, Price on request