tender for purchase of chemicals , purchase of chemicals and glassware , dichloromethane, 99% - 25 l , n-hexane 99% - 25 l , ethyl acetate, 99% - 25 l , acetone, 99% - 25 l , chloroform, 99% - 25 l , petroleum ether, 60/80 - 25 l , toluene, 99% - 25 l , acetonitrile, 99% - 25 l , acetic acid, 99% - 2.5 l , n,n-dimethylformamide dry, 99% -2.5 l , tetrahydrofuran (dry) -500 ml , calcium chloride, anhydrous, 98% -5 kg , sodium hydrogen carbonate, 98% -5 kg , sodium hydroxide, pellets, 98% -1 kg , potassium hydroxide, 85% flakes -1 kg , potassium carbonate, 98% -1 kg , 2,2,6,6-tetramethylpiperidinyloxy, 98% -25 g , 2-iodobenzoic acid, 98% -25 g , 5,5-dimethylcyclohexane-1,3-dione, 98% 25 g , sodium sulfate, anhydrous -5 kg , trimethylsilylacetylene, 98% -25 g , molecular sieves 4a -250 g , 4-nitro-o-phenylenediamine -25 g , diaminomaleonitrile -25 g