CLP Semi-Volatile Internal Standard Back Catalog number: 10019R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675714 Pyraflufen monohydrate (free acid), 10mg Price on request DF-IS-F200 Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request C16176000 Phthalic acid, bis-phenyl ester, certified, 0.5g Price on request