2,4-DB Back Catalog number: 3354.10-100-CY Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 12698.40-100-ME Bisoprolol hemifumarate, 100µg/ml in MeOH, 1ml Price on request DF-IS-J Mass-Labelled PCDD Internal Standard Solution, 1.2ml, nonane Price on request 71642 Isopropyl sulfide Price on request