Histology Reagents
Scytek Laboratories Eosin Y Solution, 500 mL, Newly Formulated
Eosin Y Solution (Modified Alcoholic) is intended for use in histology and cytology applications. This newly formulated Eosin provides the benefits of a traditional alcoholic formula with significant improvements in usability. Advantages include lower evaporation rate, better color patterns, reduced tendency to spill over container, hands, and countertops, and improved surface tension to remain on tissue section.
Biotium EOSIN-5-Maleimide
Eosin-5-maleimide is a good photosensitizer and can be used to selectively label thiols. It has a quantum yield of 0.57 for singlet oxygen generation, which makes it useful for photoconversion of electron-rich materials such as diaminobenzidine (DAB) or fluorescent dyes into highly electron-dense materials for high resolution electron microscopy studies. Additionally, eosin is a good fluorescence acceptor for fluorescein (FAM), dansyl and coumarin dyes in fluorescence resonance energy transfer (FRET). Properties: Ex/Em (MeOH) = 524/545 nm; e = 100,000; Orange solid soluble in DMF or DMSO; Store at -20°C and protect from light; C24H9Br4NO7; MW: 742.95.
Electron Microscopy Sciences Chemkit for Preparations of Biological Specimens
This package is arranged to enable a laboratory to perform standard preparations of biological specimens with enough supplies to last. Includes:
Fixatives-osmium tetroxide crystal, osmium tetroxide 4% solution, glutaraldehyde EM grade 50%, glutaraldehyde EM grade 8%, and paraformaldehyde Prill.
Buffers-sodium phosphate monobasic, sodium phosphate dibasic, sodium hydroxide pellets, and sodium cacodylate trihydrate.
Dehydrants-propylene oxide and acetone.
Embedding media-EMBed-812 kit and low viscosity kit (Dr. Spurr).
Stains-toluidine blue, borax tetra, sodium borate, uranyl acetate, lead citrate, and epoxy tissue stain.
Electron Microscopy Sciences Bismuth Stain Kit 2
Bismuth specifically stains Golgi beads and interchromatin granules after fixation with glutaraldehyde, whereas it stains nucleoli, basic protein, and biogenic amines after formaldehyde fixation. Bismuth staining of sections is relatively nonspecific: it can stain glycogen, lysosomes, ribosomes, polysaccharides, ferritin, and DNA. M.A. Hayat, "Basic Techniques for TEM" p. 184 (1986). Enhancing Contrast in General (Riva, 1974). Kit contains 5x10 ml Solution A(Sodium tartrate in NaOH) 5x200mg Ingredient B (Bismuth subnitrate).
Electron Microscopy Sciences Glutaraldehyde Aqueous 25%, Biological Grade 2 450 ML
OCHCH₂CH₂CH₂CHO F.W. 100.12
Aqueous glutaraldehyde, the universal fixative for electron microscopy, is purified to EM grade from commercial grade by "all-glass vacuum-distillation". It is the highest possible quality, free from polymers and other contaminents. Each lot is assayed prior to shipping assuring consistent purity and the highest possible quality.
If stored properly, our Glutaraldehyde has a very long shelf life. EM grade aqueous glutaraldehyde, stored in volumes greater than 100 ml, with repeated defrosting and recapping, will polymerize in time, producing an absorption peak of 235nm rather than the 280nm of pure EM grade. The presence of polymerized glutaraldehyde greatly reduces its efficiency as a cross-linking agent, preventing proper fixation. For this reason, we provide 10 ml ampoules sealed under dry nitrogen and 100 ml bottles that are kept refrigerated until it is shipped.
Grade: Biological 2
Electron Microscopy Sciences Glutaraldehyde Aqueous 50%, EM Grade 10 ML
OCHCH₂CH₂CH₂CHO F.W. 100.12
Aqueous glutaraldehyde, the universal fixative for electron microscopy, is purified to EM grade from commercial grade by "all-glass vacuum-distillation". It is the highest possible quality, free from polymers and other contaminents. Each lot is assayed prior to shipping assuring consistent purity and the highest possible quality.
If stored properly, our Glutaraldehyde has a very long shelf life. EM grade aqueous glutaraldehyde, stored in volumes greater than 100 ml, with repeated defrosting and recapping, will polymerize in time, producing an absorption peak of 235nm rather than the 280nm of pure EM grade. The presence of polymerized glutaraldehyde greatly reduces its efficiency as a cross-linking agent, preventing proper fixation. For this reason, we provide 10 ml ampoules sealed under dry nitrogen and 100 ml bottles that are kept refrigerated until it is shipped.
Grade: EM Grade
Visikol Inc Visikol Plant Biology 100mL
Laboratory Reagent, Histological Reagent, Tissue Clearing Reagent, Visikol for Plant Biology, 100mL, A simple to use rapid tissue clearing formula optimized for botanical microscopy, Clears most tissues within 12 hours, Great for taxanomical morphological and pathological identification, Comes in a white HDPE bottle with black cap.
Electron Microscopy Sciences Formaldehyde Glutaraldehyde 3% Sodium Cacodylate Buffer, 7.4 pH 10 ML
Premixed, prebuffered fixatives, are pH adjusted for immediate laboratory use. They are freshly prepared upon receipt of order to ensure maximum shelf life. The fixatives are filled in 20 ml glass vials (10 ml/vial). This allows for the immediate fixation of your specimens without costly and time consuming transfer associated with ampoule contained fixatives. In Sodium Cacodylate.
pH: 7.4
Newcomer Supply Formaldehyde 37-40%, ACS, 500 ml
Shelf Life is 2 years from date of manufacture. Store at 15-30°C.
Electron Microscopy Sciences 10% Glutaraldehyde in Methanol 10 ML
C₅H₈O₂
Rapid-Freezing on a polished metal surface, at the temp. of liquid helium or liquid nitrogen, followed by freeze-substitution in osmium-acetone, has been shown to be a very useful technique for capturing rapid cellular events and for preserving cell ultrastructure.
Electron Microscopy Sciences Aqueous Glutaraldehyde 25% in Serum, EM Grade 10 ML
Over the years, many of our valued customers have requested purchasing our aqueous Glutaraldehyde in serum vials. This packaging allows the user to puncture the special non-reactive seal with a hypodermic syringe and draw out the exact quantity of aqueous Glutaraldehyde needed without opening the container. This packaging assures freshness and purity of the aqueous Glutaraldehyde at all times.
Grade: EM Grade
Electron Microscopy Sciences Glutaraldehyde Aqueous 8%, EM Grade 10 ML
OCHCH₂CH₂CH₂CHO F.W. 100.12
Aqueous glutaraldehyde, the universal fixative for electron microscopy, is purified to EM grade from commercial grade by "all-glass vacuum-distillation". It is the highest possible quality, free from polymers and other contaminents. Each lot is assayed prior to shipping assuring consistent purity and the highest possible quality.
If stored properly, our Glutaraldehyde has a very long shelf life. EM grade aqueous glutaraldehyde, stored in volumes greater than 100 ml, with repeated defrosting and recapping, will polymerize in time, producing an absorption peak of 235nm rather than the 280nm of pure EM grade. The presence of polymerized glutaraldehyde greatly reduces its efficiency as a cross-linking agent, preventing proper fixation. For this reason, we provide 10 ml ampoules sealed under dry nitrogen and 100 ml bottles that are kept refrigerated until it is shipped.
Grade: EM Grade