Heptachlor epoxide (isomer B), 1000µg/ml in MeOH, 1ml Back Catalog number: 70193 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 52316 GFAA Spike Standard Price on request 96077 MPP+ iodide Price on request 50626 Nitrite (NO2-) as N Price on request