Laboratory equipment, pharmaceutical and cosmetic

Italy

I am looking for the following products: 1) Spectra/por® 3, 11,5mm diam. 3.5 KD MWCO Standard RC dry dialysis kits pack of 5 mtr 2) METHOTREXATE 1 G Pharmaceutical secondary standard; certified reference material (CAS: 59-05-2) 3) Ethanol absolute, for hplc, >=99.8%, Assay (gc) min. 99.8 vol.%, Non-volatile matter max. 0.001 %, Water (karl fischer) max. 0.2 %, Free acid (as ch3cooh) max. 0.001 % (CAS: 64-17-5) 4) : Ethanethiol, 99+% 500 ML, Syn : ethyl mercaptan, Appearance (color) clear colorless, Appearance (form) liquid, GC >=99.0 % (CAS: 75-08-1) 5) Clear vials 4ml (13mm) 15x45mm screw caps - borosilicate type 70 6) Black closed top screw caps (13mm), red ptfe/white silicone septa 7) Clear vials 8ml (14,5mm) 17x60mm screw caps 8) Black PP closed top screw caps (14,5mm), preassemled with natural ptfe/white silicone septa 9) Gilson® tips 100-1000 μl 10) Gilson® tips 5-200 μL