CLP Volatile BTEX Standard Back Catalog number: 21001 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677349 N-2,4-Dimethylphenyl-N'-methylformamidine HCl, 100 Price on request DF-IS-D200 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 51145 WA EPH Matrix Spike Mix Price on request