Caps (PE) for 5mm NMR-Tubes, black, 100 pcs Back Catalog number: 1187 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1233 5mm NMR Wilmad Economy NMR Tube, 7'', 500MHz,5pcs Price on request 1196 Caps (PE) for 5mm NMR-Tubes, sky, 100 pcs Price on request 1191 Caps (PE) for 5mm NMR-Tubes, purple, 100 pcs Price on request