"SIGMA ALDRICH MICROSCOPY"
1-Iodo-3,5-dinitrobenzene 97%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
1-Iodo-3,5-dinitrobenzene 97%, Sigma-Aldrich®
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May Grunwald's eosin-methylene blue solution, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
May Grunwald's eosin-methylene blue solution, Sigma-Aldrich®
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Eosin B for microscopy, Sigma-Aldrich®
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Eosin B for microscopy, Sigma-Aldrich®
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Schiff’s fuchsin-sulphite reagent, Sigma-Aldrich®
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Suitable for detection of glycoproteins
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FITC (fluorescein-5-isothiocyanate, fluorescein isothiocyanate isomer I) ≥90% (by HPLC), powder suitable for protein labeling, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Fluorescein isothiocyanate (FITC) is yellow-orange in color with an absorption maximum at 495nm. Upon excitation, it emits a yellow-green color with an emission maximum at 525 nm. It is widely used to attach a fluorescent label to proteins via the amine group. The isothiocyanate group reacts with amino terminal and primary amines in proteins. It has been used for the labeling of proteins including antibodies and lectins. Fluorescein isothiocyanate isomer I has been proposed as a contact sensitiser.
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Bromothymol blue sodium salt in ACS Reagent grade water, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Bromothymol blue has been used for freshwater pH measurements over a broad range of buffer intensities.
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Safranine O for microscopy, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Safranin O, also known as basic red 2, is a basic, cationic, and metachromatic azine dye used as a biological stain. The characteristic azine chromophore contains the phenazine, a planar, tricyclic dibenzopyrazine, which consists of two non-planar benzene rings linked by two nitrogen atoms. A delocalised positive charge, an alternation of aromatic and quinonoid structures, and diazotisable amine groups constitute the chromophoric system. c-Methylation makes this dye of moderate overall size. The trimethyl cationic form of safranine is lipophilic, whereas the dimethyl forms are weakly hydrophilic. The dye is commercially available as a chloride.
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Brilliant yellow, Sigma-Aldrich®
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Brilliant Yellow has been used to determine the transfer of inoculum from male moths to females during mating.
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Safranine O, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Safranine O, Sigma-Aldrich®
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trans-4-Stilbenemethanol
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trans-4-Stilbenemethanol
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Sodium metatungstate monohydrate ≥85% WO₃ basis, purum p.a., Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Reagent for the preparation of heavy liquid, for sink-float analysis.
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Leishman's eosin-methylene blue for histology, stain, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Leishman stain is a Romanowsky-type dye, similar to Wright stain. Leishman stain is used in hematology and tropical medicine to differentiate and identify leukocytes, malarial parasites, and trypanosomes. It is also known as eosin-polychrome methylene blue.
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Rhodamine B base 97% (dye content), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Rhodamine B base, Dye content 97% (Solvent Red 49).
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Bromophenol blue sodium salt for molecular biology, suitable for electrophoresis, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Bromophenol blue (BroB), an arylmethane color marker dye has a molecular mass of 670 Da.
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Toluidine blue O, Technical Grade, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Toluidine Blue O (TBO) is a thiazine dye of the quinone-imine family and is cationic in nature. It has been employed in polychromatic staining of paraffin embedded plant cell walls. It is a metachromatic dye suitable for a wide variety of histological staining procedures. A metachromatic dye suitable for a wide variety of histological staining procedures. Toluidine Blue O has been used to stain a variety of specimens like mesenchymal cells, taste buds, osteoblasts, matrix, and more.
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DAF-2 diacetate, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Cell permeable fluorescent detector of nitric oxide in living cells. 4,5-Diaminofluorescein diacetate (DAF-2 DA) has been used as a fluorescent dye for NO (nitric oxide) detection.



