WS Disinfection By-Products - Cal Check 2 Back Catalog number: 93984 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677025 1,4-Phenylenediamine, 100mg Price on request SC-258725 1-Chloroperfluorohexane, 5g Price on request 676187 Halofenozide, 10 µg/ml, Acetonitrile, 10ml Price on request