Hexavalent Chromium (Cr 6+) Back Catalog number: 54161 Availability: In the manufacturer's stock Price on request - + Recommended 2700.8-100MG Isocaffeine (1,3,9-Trimethylxanthine),neat,neat,100mg, Price on request 2817.11-100-IO 1-Methyl-2-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1076-26-2 Price on request 8595.6-K-IP 3,4-Dibromophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 615-56-5 Price on request