Formaldehyde-DNPH Level 4 (2ug/mL) Back Catalog number: 98861 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2235.17-5MG Aflatoxin G1, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 1165-39-5 Price on request 1356.6-100-DC Hexachlorobenzene, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 118-74-1 Price on request 10976.6-K-AN o-Toluidine-d9,1000 µg/mL,acetonitrile,1mL, Price on request