Quantitative Crude Oil Standard ASTM D-5307 Back Catalog number: 51122 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended A575403 Aloe-emodin-D4 (major), 1mg Price on request 0991.13-100-IO 2-Methyl-1-hexylcyclohexane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 92031-89-5 Price on request 10378.20-100-ME EDDP perchlorate,100 µg/mL (as pyrrolinium) ,MeOH,1mL, Price on request