Method 1640Mix A Back Catalog number: 53146 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C10512000 Bentazone-8-hydroxy, 5mg Price on request 2-B-378-CDD 2-Bromo-3,7,8-trichlorodibenzo-p-dioxin (>95%), 1.2ml x 48ug/ml, toluene Price on request X9147 4-Nitroquinoline-1-oxide Price on request