D-Neopterin-13C5, 1mg Back Catalog number: SC-218032 Availability: In the manufacturer's stock Price on request - + Recommended 1553.23-K-IOX5 n-Tricosane-d48, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 203784-75-2 Price on request SC-264042 Perfluorododecane, 1g Price on request 82751 EPA Method 8275A Mix #2 Price on request