CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 21016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8484.15-K-ME Metoprolol (free base), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 51384-51-1 Price on request 679893 2,4,5-Trimethylaniline, 100 µg/ml, Acetonitrile, Price on request 8808.10-10MG Famphur, 10mg, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 52-85-7 Price on request