Copper (Cu) Back Catalog number: 59259 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended SC-490534 10-Hydroxybenzo[h]quinoline-7-sulfonate sodium salt, 100mg Price on request 677184 3,3'-Dichlorobenzidine, 100mg Price on request 30151 EPA Method 515.3 - Derivatized acids Price on request