Copper (Cu) Back Catalog number: 59259 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2635.27-1UG 18 alpha(H)-22,29,30-Trisnorneohopane, neat, Solvent-neat, Unit ca. 1µg, # of units-1, Cas.no. 55199-72-9 Price on request 70084 2-Chlorophenol-d4 Price on request 82701 EPA Method 8270A - Mix #14 Price on request