Supplier: SIGMA ALDRICH MICROSCOPY

3,4,5-Triidrossibenzoato di propile ≥98% (by HPLC) for histology and pathology, for diagnostic, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Trypan blue is a tetrasulfonated anionic, hydrophilic azo dye derived from toluidine. The non-permeable cell membrane dye is a vital dye that selectively stains dead or non-viable cells, that pass through damaged but not through intact cell membranes.

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Ehrlich’s reagent III, Loeffler’s Methylene Blue. Methylene Blue was earlier recognized as a good nuclear stain, the staining solutions are always either aged or alkalized, if not both. More importantly it is an excellent stain for ribonucleic acid, which is the important stainable constituent of bacterial bodies, of lymphocyte and hemoportoal cytoplasm, and of nerve cell tigroid granules. It can also be employed in capsule stain. The capsule stain begins as a negative stain leaving the organisms colorless. The capsule are clearly seen as halo surrounding the bacterial cell. Another staining procedure is performed with nigrosin (Cat. No. 43925).

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Khellin, for microscopy (4,9-Dimethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one)

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3,4,5-Trihydroxybenzamide 98%, Sigma-Aldrich®

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1-Amino-4-bromoanthraquinone-2-sulphonic acid sodium salt, Sigma-Aldrich®

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Violamine R 60% (dye content), Sigma-Aldrich®

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The Epoxy Embedding Medium Kit is a very widely used embedding medium for electron microscopy. The embedding formulation originally published by Luft (1961) is excellent for both plant and animal tissues. Due to the low viscosity of the resin, it penetrates the tissue specimen faster than Araldite and other polymers. It hardens easily and uniformly at low temperatures with the addition of dodecenylsuccinic anhydride (DDSA), methyl nadic anhydride (MNA), and the accelerator 2,4,6-tris(dimethylaminomethyl)phenol (DMP-30). Slight shrinkage may occur during curing. This kit is useful for embedding a variety of tissues as a wide range of hardness can be obtained with this resin to suit a specific tissue type by using two different anhydride curing agents (DDSA and MNA).

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Suitable for titration of morpholine

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4-(4-Isothiocyanatophenylazo)-N,N-dimethylaniline,97% (4-(Dimethylamino)azobenzene-4'-isothiocyanate; DABITC)

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4-(2-Pyridylazo)resorcinol (PAR) is a monosodium salt(1), dibasic acid that forms the protonated complexes with most metal ions.

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3,3′-Diethylthiacyanine iodide (DTTHCI) is a fluorophore. 3,3′-Diethylthiacyanine iodide has been used to investigate the kinetics of fluorescence staining in bacteria (two Gram-negative and two Gram-positive species).

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Metachromatic dye

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1-Heptyl-4-(4-pyridyl)pyridinium bromide,95%

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4'-Hydroxybiphenyl-4-carboxylic acid 99%, Sigma-Aldrich®

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Ethyl 3,5-dimethyl-2-pyrrolecarboxylate,98%

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1,4-Dimethylpyridinium p-toluenesulfonate,98%

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7-Amino-4-(trifluoromethyl)coumarin (AFC) is a novel fluorescent marker used for the detection of proteinases. Suitable as laser dye.

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2,7,12,17-Tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine has been used in multifunctional drug delivery investigations from ionic triblock terpolymer micelles.

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2-(Phenylsulfonyl)ethanol,97%

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3,4,5,6-Tetrabromophenolsulfonephthalein, Dye content 95 %

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Coomassie Violet R200, Dye content 50 % (Acid violet 17)

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Building block for 'Anti-Bredt' strained molecules.

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Orange G solution, alcoholic, for the colorimetric method according to Papanicolaou (OG-6)

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REACTIVE GREEN 19 PRACTICAL GRADE 1 * 25 g

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CALMAGITE TRIETHANOLAMMONIUM 1 * 1 g

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WRIGHT-GIEMSA STAIN SET 1 * 1 SET

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TETRANITRO BLUE TETRAZOLIUM 1 * 100 mg

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1-(MESITYLENSULFONYL)-3-NITRO-1H-1,2 1 * 1 g

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DISPERSE BLACK 9 1 * 5 g