CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 23016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S699061 Sulfadimethoxine-d4, 1mg Price on request 94192 EPA 525 Cal Mix 1 Price on request 685011 D3-(-)-Altenuene, 100 µg/ml, Acetonitrile, 1ml Price on request