Isophoronediamine (cis- and trans- mixture), 25ml Back Catalog number: I0228 Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-C40 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 679431 D3-Sulfamethoxypyridazine, 10mg Price on request 682850 Pyrogallol, 1000mg Price on request