WS Disinfection By-Products - Cal Check 2 Back Catalog number: 93984 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 14181.13-K-ME Bupropion HCl, 1000μg/ml in MeOH, 1ml Price on request 681772 Octocrylene, 100 µg/ml, Acetonitrile, 1ml Price on request 680266 Trichlorfon, 10 µg/ml, Cyclohexane, 10ml Price on request