Potassium (K) Back Catalog number: 54158 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended DF-LCS-A Mass-Labelled PCDD/PCDF Solution/Mixture , 1.2ml , nonane Price on request 72998 Novaluron Price on request 677860 Diisoheptyl phthalate (tech mixture), 100mg Price on request