WS Disinfection By-Products - Cal Check 3 Back Catalog number: 93985 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677179 4-Nonylphenol-di-ethoxylate, 50 µg/ml, Acetone, Price on request 72096 Amoxicillin, 1000µg/mL in water, 1ml Price on request 675026 2-Isopropyl-6-methyl-4-pyrimidinol, 10 µg/ml, Cyc Price on request