Propionic acid, 1ml Back Catalog number: 680167 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 2635.27-5UG 18?(H)-22,29,30-Trisnorneohopane,neat,neat,ca. 5 µg, Price on request 11754.12-100-IO 2,3',4,4',5',6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 72061 2,6-Dinitrotoluene-a,a,a-d3 Price on request