WS Sulphate/TOC Back Catalog number: 55070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9016.4-K-DC N-Nitrosopyrrolidine-d8, 1000µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 1219802-09-1 Price on request 30452 Carbon tetrachloride Price on request A15935000WL-100 Penicillin G potassium, 100µg/mL in Acetonitrile, 1ml Price on request