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Displaying 751-800 of 12116 results.
Sigma Cat.No.Description
122791,2-Propanediol
analytical standard
12282Hoyle′s tellurite agar, base
suitable for microbiology, NutriSelect® Plus
12292Lithium Standard for ICP
TraceCERT®, 1 g/L Li in nitric acid (nominal concentration)
12309p-Benzoquinone
for spectrophotometric det. of amines, ≥99.5% (HPLC)
12313Cadmium Standard for ICP-MS
TraceCERT®, 1 mg/L Cd in nitric acid (nominal concentration)
12331Tryptose (vegetable)
suitable for microbiology
12398CP ChromoSelect Agar
NutriSelect® Basic, suitable for microbiology
124052Bromoethane
reagent grade, 98%
124508Gallocyanine
Dye content 90 %
124737Glycolic acid
ReagentPlus®, 99%
12479Silica gel
technical grade (w/ Ca, ~0.1%), 60Å, 230-400 mesh particle size, Ca 0.1-0.3 %
12540Benzene
analytical standard
125431Cyclohexene
inhibitor-free, ReagentPlus®, 99%
125660Leucomalachite Green
powder
125733Phthalic anhydride
ReagentPlus®, 99%
12584Dioctyl phenylphosphonate
Selectophore
1259031,3-Dibromopropane
ReagentPlus®, 99%
12608Benzyl cyanide
analytical standard
12620Benzenesulfonyl chloride
derivatization grade (HPLC)
126225Chromotropic acid disodium salt dihydrate
technical grade
12665Potassium (poly)sulfide
≥42% K2S basis
12669Potassium thiosulfate
≥95%
12674IQ/OQ/PQ Kit for Ion Chromatography
certified reference material
12801Ammonium tetrachlorocuprate(II) dihydrate
purum, ≥98%
12805(Benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate
purum, ≥97.0% (TLC)
12806O-(Benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate
≥97.0% (N)
12809O-(Benzotriazol-1-yl)-N,N,N′,N′-bis(tetramethylene)uronium hexafluorophosphate
≥98.0%
12818Silver Standard for ICP
TraceCERT®, 1 g/L Ag in nitric acid (nominal concentration)
12838HybriScanD Cronobacter spp.
suitable for microbiology
128465Glyoxal solution
40 wt. % in H2O
13005Sulfate API Agar
NutriSelect® Plus, suitable for microbiology
1310834-Phenylazophenol
98%
1311053,6-Diaminoacridine hydrochloride
Dye content 95 %
131164Indigo carmine
certified by the BSC, Dye content 85 %
13118Magnesium carbonate basic
purum, light, ≥40% Mg (as MgO) basis, powder (light)
13180Benzylamine
derivatization grade (GC derivatization), LiChropur, ≥99.0%
13198Redox standard
250 mV
13220Manganese(II) chloride monohydrate
≥97.0%
13259Dimethyl carbonate
analytical standard
132934Aniline
ReagentPlus®, 99%
13295Ethyl benzenesulfonate
certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
13404Sodium aluminate
technical
134236Morpholine
ReagentPlus®, ≥99%
13425Sodium ferrocyanide decahydrate
≥98.0%
1343681,2-Propanediol
ReagentPlus®, 99%
13468Sodium sulfide hydrate
≥60%, scales
1350111,2-Dihydroxybenzene
ReagentPlus®, ≥99%
14007Potassium titanium oxide oxalate dihydrate
14010Titanium(III) chloride solution
10-15% TiCl3 basis
14023Titanium(IV) oxysulfate
≥29% Ti (as TiO2) basis, technical

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