1051 Résultats pour : "SIGMA ALDRICH MICROSCOPY"

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Benzaldehyde tosylhydrazone,98%

Supplier: SIGMA ALDRICH MICROSCOPY

1-Phenyl-2,3-naphthalenedicarboxylic anhydride,98%

Supplier: SIGMA ALDRICH MICROSCOPY

PolyFreeze is a water-soluble support matrix and a form of embedding medium for frozen sectioning. PolyFreeze sections flawlessly at routine frozen specimen thickness of 5-6 μ and leaves no slide residue. It provides for -20 ºC cryostat sectioning in rapid set embedment. This medium freezes quickly supporting the tissue for sectioning at 3 mm and up with no cracking of the matrix at temperatures from -8 °C to -25 °C.

Supplier: SIGMA ALDRICH MICROSCOPY

Suitable as a laser dye.

Supplier: SIGMA ALDRICH MICROSCOPY

Gill formulation No. 2 may be used for cytology and/or histology as a progressive or regressive stain depending on length of staining time.

Supplier: SIGMA ALDRICH MICROSCOPY

Contains sodium and potassium phosphates. Intended for use in the Sigma Butyrate Esterase Procedure, No. 181B.

Supplier: SIGMA ALDRICH MICROSCOPY

Bleu de méthyle, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Silver enhancer solution B has been used in the enhancement of metallic nanoparticles and silver staining.

Supplier: SIGMA ALDRICH MICROSCOPY

This kit may be useful in study of diseases of connective tissue and muscle characterised by fibrotic and dystrophic changes. For in vitro diagnostic use.

Supplier: SIGMA ALDRICH MICROSCOPY

Ethidium bromide monoazide. ≥95% (HPLC), solid (3-Amino-8-azido-5-ethyl-6-phenylphenanthridinium bromide; Ethidium monoazide bromide)

Supplier: SIGMA ALDRICH MICROSCOPY

N,N,N',N'-Tétraméthyl-p-phénylenediamine, dichlorhydrate ≥95%, en poudre, 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.

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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).

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

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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-Trihydroxybenzamide 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.

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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.

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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.

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

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Acid Phosphatase, Lymphocyte Kit, Sigma-Aldrich®

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Chief ingredient of Giemsa Stain.

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

Supplier: SIGMA ALDRICH MICROSCOPY

Auramine 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.