Cation Mix #1 Back Catalog number: 50330 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83540 Benzaldehyde-DNPH Price on request 8017.9-K-IO 5-Nitroisoquinoline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 607-32-9 Price on request 1577.23-100-ME Pholcodine, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 509-67-1 Price on request