"SIGMA ALDRICH MICROSCOPY"
o-Tolidine ≥95%
Supplier: SIGMA ALDRICH MICROSCOPY
o-Tolidine is a diacidic dye which is sparingly soluble in water and easily soluble in ether and alcohol. On exposure to chlorine or bromine vapors, it forms an intense blue color. This forms the basis for detection of chlorine, nitrates and hydrogen peroxide in air or water. It turns yellow on reacting with free chlorine. o-Tolidine easily forms acid salts.
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5-Aminofluorescein (isomer I), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Fluoresceinamine, isomer I has been used as a probe in immobilization and is used to determine its ability to potentiate the antiviral activity of poly r (A-U).
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Control slides, TISSUE-TROL™, Sigma-Aldrich
Supplier: SIGMA ALDRICH MICROSCOPY
Acid Fast TISSUE-TROL™ Control Slides from mouse lung tissue containing Mycobacterium gordonae, TISSUE-TROL™
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Rhodamine 6G ~95% (dye content), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Rhodamine 6G has been used as a leukocyte marker to study the interaction between leukocytes and the vascular endothelium. It has also been used to label platelets.
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Tartrazine, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Yellow counterstain suitable for a wide range of histological staining procedures.
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Giemsa's stain modified, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
When blood films are stained using Giemsa Stain, the nucleus and cytoplasm of white blood cells take on characteristic blue or pink coloration. The use of purified eosin and thiazine dyes minimizes lot-to-lot variation.
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bisbenzimide H-33342 trihydrochloride (Hoechst 33342) ≥98% (by HPLC, TLC), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Useful for staining DNA, chromosomes and nuclei. May be used for fluorescence microscopy or flow cytometry.
Excitation max. = 346 nm
Emission max. = 460 nm
bisBenzimide H 33342 trihydrochloride has been used for the staining of viable and apoptotic.
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Haematoxylin solution Gill III, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Gill formulation No. 3 may be used for cytology and/or histology as a progressive or regressive stain depending on length of staining time. Used with hematoxylin and eosin staining.
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Fast Red Violet LB Salt ≥90% (dye content), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Fast Red Violet LB Salt has been used for the detection of tartrate-resistant acid phosphatase (TRAP) in tissue sections.
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Methylene blue solution, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Loefflers Methylene Blue stain is used for the identification of diphteria bacilli, since it differentiates the deeply staining metachromatic granules from the pale blue-staining cytoplasm.
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Quinoline yellow sulphonic acid sodium salt (Acid yellow 3), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Quinoline Yellow, Mixture of the mono- and disulfonic acids of Quinoline Yellow (Acid Yellow 3)
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RenLam® M-1 for microscopy, suitable as a embedding medium, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
To be used with SIAL 69571 Ren HY 956 (Hardener for Epoxy Embedding Medium)
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Sigma-Sil-A, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Trimethylchlorosilane: hexamethyldisilazane: pyridine (1:3:9) reagent for preparing TMS derivatives of amino acids, sugars, etc.
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1,3-Diphenylacetone-p-toluenesulphonylhydrazone ≥98%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
1,3-Diphenylacetone-p-toluenesulphonylhydrazone ≥98%, Sigma-Aldrich®
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Dihydroethidium ≥95%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Redox indicator. Blue fluorescence until oxidized to ethidium. Dihydroethidium has been used as a superoxide probe in bovine pulmonary artery endothelial cell (BPAEC).
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Ethyl 4′-hydroxy-4-biphenylcarboxylate ≥98%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Ethyl 4'-hydroxy-4-biphenylcarboxylate,98%