Sodium arsenate dibasic heptahydrate (As) Back Catalog number: 50647 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675976 Isofenphos, 100 µg/ml, Ethyl acetate, 5ml Price on request 55210 WS Low Level Perchlorate Price on request 50047 Metals Mix #3 Price on request