UV-328, 100mg Back Catalog number: 680600 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 8740.18-K-25WX5 Linear Alkyl Benzene Sulfonate Stock solution, ISO, 1000µg/ml, Solvent-water, Unit 25mL, # of units-5, Cas.no. 69669-44-9 Price on request 683391 4-Methylbenzophenone, 1000mg Price on request 23012 EPA Method 8260B Surrogate Standard Price on request