Multi-Element Standard Back Catalog number: 50729 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0974.29-100-IOX10 d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. Price on request 11009.22-K-IO Diisoheptyl phthalate (mixture of C7 isomers),1000 µg/mL,isooctane,1mL, Price on request 95394 n-Hydrocarbon Mix C8 - C40, 2000µg/ml in MeCl2 : CS2 [3:1], 1ml Price on request