tender for supply of chemicals; supply of laboratory chemical , chromium ( 0 ) hexacarbonyl - 98% , molybdenumhexacarbonyl ≥99.9% trace metals basis , bis ( 1, 5-cyclooctadiene ) nickel ( 0 ) >95.0% ( t ) , diironnonacarbonyl 98% , silver hexafluorophosphate 99.99% trace metals basis , bis ( 1, 5-cyclooctadiene ) rhodium ( i ) trifluoromethanesulfonate 98% , chloroform-d ( 99.8 atom % d ) , water ( by karl fischer <100% water , dimethyl sulfoxide-d6 > 99.955 %atom % d purity ( gc ) > 99.0 % water ( by karl fischer ) < 0.0250 % , α-tetralone purity 97% , cyclohexanone purity 99.8%, colour test < 20 apha , phosphorus tribromide purity 99%, titration by agno3, 98.5 - 101.5 % , 1, 2-dibromobenzene purity 98% , 2-bromoaniline gc purity 98%, titration with hclo497.5 - 102.5 % , allyl bromide purity 99%, contains ≤1000 ppm propylene oxide as stabilizer , chlorobenzene anhydrous, 99.8% , ethyl acetoacetate purity 99% , pyrrole, analytical standard purity ( gc area % ) ≥ 98.0 %, water ≤ 0.5 %, refractive index n20 / d 1.508 - 1.511 , imidazole purity ( gc ) ≥ 99.0 %, titration with hclo498.5 - 101.5 % , n, n-dimethylacetamide anhydrous, 99.8%, water ( by karl fischer ) , < 0.005 % , pyridine anhydrous, 99.8%, water ( by karl fischer ) , < 0.003 % , chitosan high molecular weight, viscosity 800 - 2000 cps , benzoylformic acid purum, ≥98.0% ( t ) , titration ( t ) naoh 0.1m 98.0 - 102.0 % , palladium ( ii ) chloride purity 99.995%, % pd with dimethylglyoxime 57.9 - 62.1 % , palladium ( ii ) acetate 99.98% trace metals basis , copper ( i ) iodide purity, ≥99.5% , morpholine purity ( gc ) , ≥99% , dimethyl sulfoxide purity ( gc ) ≥99.90 % titrable acid ( meq / g ) < 0.001 , dichloromethane purity ( gc ) > 99.80 %anhydrous, water ( by karl fischer ) < 0.001 % , acetone-d6 99.9 atom % d water ( by karl fischer ) 0.025 % , acetonitrile suitable for hplc, gradient grade, ≥99.9% , copper ( i ) oxide ≥99.99% trace metals basis, anhydrous , potassium iodide acs reagent, ≥99.0% phosphate ( po4 ) < 0.001 % , cobalt ( ii ) acetylacetonate 97%, water ( by karl fischer ) < 3.5 % , ammonium molybdate 99.98% trace metals basis , vanadium ( v ) oxide 99.95% trace metals basis , copper ( ii ) trifluoromethanesulfonate 98% ( titration by na2s2o397.5- 102.5 % ) , magnesium hydroxide ≥99.0% ( kt ) , zinc ( icp ) ≤ 5 mg / kg , copper ( ii ) hydroxide technical grade, complexiometric edta> 58.3 % , d- ( + ) -mannose suitable for microbiology, ≥99.0% ( sum of enantiomers, hplc ) , glycine reagentplus®, ≥99% ( hplc ) ammonia ( nh3 ) < 0.01 % , l-cystine ≥98% ( tlc ) , crystalline , β-carotene purityby uvvs 92.5 - 101.0 % , caffeine powder, purity ( hplc ) > 99.0 % , water ( by karl fischer ) < 0.5 % , chloramine-t hydrate 95% , tetrabromomethane purity ( gc ) 99% , vanillin purity ( gc ) 99% , thiourea assay ( exn ≥ 98 % ) , phenylacetylene 98% , rac-binap purity ( hplc ) 97% , o-phenylenediamine flaked, purity ( hplc ) 99.5% , salicylaldehyde purity ( gc area % ) 98% , 1-methyl-2-pyrrolidinone anhydrous anhydrous, 99.5% , toluene-d8 99.6 atom % d, contains 0.03 % ( v / v ) tms , methanol-d4 for nmr spectroscopy, 99.8 atom % d , ethylene glycol extrapure ar, 99.5% , deuterium oxide 99.9 atom % d, contains 0.05 wt. % 3- ( trimethylsilyl ) propionic-2, 2, 3, 3-d4 acid, sodium salt , 9-phenanthrenecarboxaldehyde 97% , anthracene-9-carboxylic acid 98% , 2-methylpyridine-3-carboxylic acid 98% , 9-bromoanthracene >94 % ( gc ) ( hplc ) , 2-aminobenzonitrile 98%