1057 Ergebnisse für: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Lugol′s solution is a ready-to-use solution that comprises 6% iodine in 4% potassium iodide. It is commonly used as a mordant for Gram staining in bacteriology. It is used for staining bacterial target structures for diagnostic purposes by fixing, staining, counterstaining, and mounting bacteriological specimen materials.

Supplier: SIGMA ALDRICH MICROSCOPY

Coumarin is also known as benzoαpyrone. Coumarin 7 is a laser dye that is usually found in the nature. Its derivatives are used in medicine and chemistry. It is present in plants in the form of glucosides. Coumarin acts as an antimutagen as it controls the mutagenic effects of several chemicals like aflatoxin B1and physical agents like ultraviolet light. Suitable as a laser dye.

Supplier: SIGMA ALDRICH MICROSCOPY

A preweighed vial containing 50 mg o-Dianisidine. o-Dianisidine (3,3′-dimethoxybenzidine) is a peroxidase substrate suitable for use in ELISA procedures. This substrate produces a soluble end product that is yellow-orange in color and can be read spectrophotometrically at 405 nm. The reaction may be stopped with 5 M HCl.

Supplier: SIGMA ALDRICH MICROSCOPY

Disperse Yellow 3, Dye content 30 % (4-(2-Hydroxy-5-methylphenylazo)acetanilide; N-[4-(2-Hydroxy-5-methylphenylazo)phenyl]acetamide)

Supplier: SIGMA ALDRICH MICROSCOPY

Kit component of Gram Stain kits HT90A and HT90T (for staining of heat-fixed films and tissue, respectively).

Supplier: SIGMA ALDRICH MICROSCOPY

N,N,N',N'-Tetramethyl-p-phenylendiamin Dihydrochlorid ≥95%, Pulver, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Fast Blue BB Salt hemi (zinc chloride) salt, also known as Cl Azoic diazo 20 (Cl 37175) is a diazonium salt that possesses a lipophilic amine lipophilic with an aromatic system of moderate size. It is commercially available as the zinc chloride double salt. It has been used for alkaline phosphatase staining in cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Neutral red (C.I. 50040) is a protonated diaminophenazine dye. It is aminodimethylaminomethylphenazinehydrochloride, C15H17N4Cl.

Supplier: SIGMA ALDRICH MICROSCOPY

Giemsa stain is a versatile differential stain that is widely used in hematology for blood and bone marrow specimens, clinical cytology specimens, bacteriology, histological biopsies, and tumor samples. Giemsa's staining solution is composed of methylene blue, azure, and eosin. It is a major histological stain due to its unique staining of chromatin, nuclear membranes, and cytoplasmic elements. The stain is frequently used in combination with other dye solutions: May-Grünwald’s solution for Pappenheim (MGG) and Wright-Giemsa.

Supplier: SIGMA ALDRICH MICROSCOPY

4-Methoxybiphenyl has been used as a standard reagent whose fluorescence intensity is associated with the fluorescence characteristics of the products of derivatisation reaction for aryl halides with phenylboronic acid (PBA).

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

2-(Phenylsulfonyl)ethanol,97%

Supplier: SIGMA ALDRICH MICROSCOPY

2-Hydroxy-1,4-naphthoquinone is one among the forensic reagents used for fingerprint detection. 2-Hydroxy-1,4-naphthoquinone, produced from Lawsonia inermis, is an orange dye. It belongs to the class of naphthoquinone dyes. 2-Hydroxy-1,4-naphthoquinone is used to dye hair and to color textiles. It has antibacterial, antifungal, anti-inflammatory, antiviral and antineoplastic properties. 2-Hydroxy-1,4-naphthoquinone inhibits tumor cell growth. It stimulates the production of reactive oxygen species (ROS).

Supplier: SIGMA ALDRICH MICROSCOPY

Substrate for the histochemical demonstration of acid and alkaline phosphatase. Substrate for the fluorometric assay of acid and alkaline phosphatases. Demonstration of acid phosphatase in paraffin embedded tissue. Cytofluorometric assay of acid phosphatase in single living cells.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

Osmium tetroxide (OsO₄) is a heavy tetrahedral, symmetrical molecule composed of osmium, a third-row transition metal. Osmium tetroxide is both a dye, and a non-coagulant fixative agent in electron microscopy primarily used for the examination of biological tissue components in the histopathology laboratory. Specimens are postfixed with osmium testroxide to ensure preservation of the lipids.

Supplier: SIGMA ALDRICH MICROSCOPY

May-Grünwald stain is a Romanowsky neutraldye stain based on the combination ofmethylene blue azures as the basic dyecomponent and eosin as the acid dyecomponent.It is intended for use in staining blood films orbone marrow films. It is used routinely for diagnostic purposes in hematology.

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan IV has been used to in en-face staining of aorta, stains the lipid rich plaques. It has also been used to stain lipids atherosclerotic lesions of mice.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

Acid Phosphatase, Lymphocyte Kit, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Chief ingredient of Giemsa Stain.

Supplier: SIGMA ALDRICH MICROSCOPY

Yellow counterstain suitable for a wide range of histological staining procedures.

Supplier: SIGMA ALDRICH MICROSCOPY

Auramin O, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Tartrazine may be used as a reference standard in the determination of tartrazine in food samples using ion-pair liquid chromatography coupled with photodiode-array and electrospray mass spectrometry detector.

Supplier: SIGMA ALDRICH MICROSCOPY

DNA, RNA stain with advantageous spectral properties for cytometric applications.

Supplier: SIGMA ALDRICH MICROSCOPY

Kanadabalsam, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Naphthol AS phosphate disodium salt is intended for use as a substrate for the histochemical demonstration of acid and alkaline phosphatase activities.

Supplier: SIGMA ALDRICH MICROSCOPY

Acridine is a small cationic and planar dye that mainly binds to RNA and DNA. These dyes are strongly fluorescent. It resembles the structure of xanthene except that the heteroatom is nitrogen, not oxygen. Acridine is suitable for nucleic acid staining, particularly for cell cycle determination. Acridines are used as fluorescent materials for visualisation of biomolecules, and in laser technologies.

Supplier: SIGMA ALDRICH MICROSCOPY

5-Carboxyfluorescein has been used as an internal marker in capillary isotachophoresis to quantify the charge-based low density lipoprotein subfractions.

Supplier: SIGMA ALDRICH MICROSCOPY

Fuchsin basisch, Sigma-Aldrich®