Heptachlor, 100 µg/ml, Ethyl acetate, 1ml Back Catalog number: 676691 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 70232 N-Nitrosodi-n-propylamine, 1000µg/mL in MeChl, 1ml Price on request 97617 3,4,5,6-Tetrachloroguaiacol Price on request 2321.17-100 Epoxiconazole, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 133855-98-8 Price on request