QC Standard 4 Back Catalog number: 53087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681689 2,4-Dimethylphenol, 100 µg/ml, Methanol, 5ml Price on request 22016 CLP Semi-Volatile Base/Neutral Surrogate Std Price on request 95150 Freon/Oxy ICAL Conc & Sub-Mix Price on request