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 79507 Tetrahydrofuran Price on request S-4258-SET Aromatics Calibration Standards Kit (4 Internal Standard Version) 24 Analytes + 4 ISTD, each Vol.% as listed in isooctane; units: 5x1mL Set, one of each Std. 1-5 + opt. 1x1mL (Std. 6) To these calibration standards are 4 deuterated Internal Standards Price on request 0551.30-10MG Urs-12-en-3-one, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 638-96-0 Price on request