Heptachlor, 1000µg/ml in Hexane, 1ml Back Catalog number: 79022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10769.19-100-ME Iohexol, 100µg/ml in MeOH, 1ml Price on request 675345 Di-n-propyltin dichloride, 100 µg/ml, Methanol, Price on request 55103 RCRA Metals in Soil #2 Price on request