Sodium arsenate dibasic heptahydrate (As) Back Catalog number: 50647 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 4-B-2378-CDF 4-Bromo-2,3,7,8-tetrachlorodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 10557.16-1G Indigo dye Price on request 92131-1G Trimethoprim, >99%, 1g Price on request