CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 20006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98515 BTEX (2.0 µg/mL) Price on request 11719.12-100-IO 2,2',4,5,6'-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 71243 4-Aminophenol Price on request