Petroleum Marker Standard Conc Back Catalog number: 95590 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0974.29-100-IO d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 100µg/mL in Isooctane, 1ml Price on request 678116 Benzyldimethyltetradecylammonium chloride, 100 µg/ Price on request 8380.9-K-IP 3,5-Dimethylanisole, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 874-63-5 Price on request