CLP Acid & Base/Neutral Surrogate Mix Back Catalog number: 21056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2025.6-100-DC Pentachlorobenzene, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 608-93-5 Price on request 680963 Imidazole, 250mg Price on request 673681 Propyzamide, 10.0 µg/ml, Ethyl acetate, 10ml Price on request