Naptalam, 100 µg/ml, Acetone, 1ml Back Catalog number: 680799 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 3656.6-K-IO 1,2,4,5-Tetrachlorobenzene, 1000µg/mL in Isooctane, 1ml Price on request 673730 Ametryn, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 82708 Appendix IX Semi-Volatiles Mix #13 Price on request