1070 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

For use in the Naphthol AS-D Chloroacetate Esterase and Naphthyl Acetate Esterase Procedures, Kits 91C and 91A.

Supplier: SIGMA ALDRICH MICROSCOPY

Sulforhodamine B (also known as SRB, kiton rhodamine B, lissamine rhodamine B, or sulphorhodamine B) is a bright-pink anionic, aminoxanthene dye carrying two sulfonate substituents.

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

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

Supplier: SIGMA ALDRICH MICROSCOPY

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

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

For use in the Acid Phosphatase (Leukocyte) Kit No. 387A

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan Red 7B has been used to stain the fat bodies of Ostrinia nubilalis (Hübner) larvae. Sudan red 7B, also known as fat red, is a non-fluorescent stain.[2] It is effectively used to stain lipids and is used to indicate the presence of suberin in cell walls.[2][3][4] Sudan red 7B acts as a marker for formosan subterranean termite, Coptotermes fornosanus Shiraki.

Supplier: SIGMA ALDRICH MICROSCOPY

DPX Mountant for histology has been used as a slide mountant to fix sections.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Useful for staining fresh, fixed, unembedded or plastic-embedded sections of bone. Villanueva osteochrome bone stain gives uniform and reproducible results. Useful in studying biopsy or postmortem tissue.

Supplier: SIGMA ALDRICH MICROSCOPY

Fluoromount™ Aqueous Mounting Medium for use with fluorescent dye-stained tissue.

Supplier: SIGMA ALDRICH MICROSCOPY

Used as a kit component in Procedure 91 for the demonstration of specific esterase activity in peripheral blood smears or paraffin sections.

Supplier: SIGMA ALDRICH MICROSCOPY

A fluorescent conjugate of bisindolylmaleimide that specifically binds phosphokinase C at the active site. Can monitor enzyme activation and translocation. This reagent is not membrane permeable. The diacetate form (Sigma No. F9801) is membrane permeable.

Supplier: SIGMA ALDRICH MICROSCOPY

Rose Bengal lactone 95%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Tetrachlorophthalonitrile,98%

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

3,4-Pyridinedicarboxamide,98% (Cinchomeronamide)

Supplier: SIGMA ALDRICH MICROSCOPY

4-Nitrophthalonitrile 99%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

D.P.X mounting medium is a mixture of distyrene (polystyrene), a plasticizer (tricresyl phosphate), and xylene. It facilitates the protection of stains and can dry quickly.

Supplier: SIGMA ALDRICH MICROSCOPY

4-(2-Pyridylazo)resorcinol monosodium salt is a chromophoric indicator and chromogenic chelator employed for the spectrophotometric determination of several metal ions.

Supplier: SIGMA ALDRICH MICROSCOPY

Fluorescein-5-EX N-hydroxysuccinimide ester has been used for the labeling of antibodies.

Supplier: SIGMA ALDRICH MICROSCOPY

Regular Paraplast with approx. 0,8% DMSO added for enhanced ease of infiltration and sectioning. Paraffin polyisobutylene mixture is a tissue embedding medium composed of highly purified paraffin and polyisobutylene and a low level of dimethyl sulfoxide (DMSO) to enhance the rate of tissue penetration. Paraffin-polyisobutylene (76258) supports thin wrinkle-free sectioning down to 4 µm with more flexible and continuous ribbons.

Supplier: SIGMA ALDRICH MICROSCOPY

Nitro Blue Tetrazolium is a tetrazole compound with two tetrazole rings.

Supplier: SIGMA ALDRICH MICROSCOPY

DASPEI has been used for the labelling of hair cells in larval zebrafish. It accumulates in the mitochondria and has a large fluorescence stokes shift. It is also used for the relative measurements of mitochondrial membrane potential. Suitable as a mitochondrial stain in live cells. Storage temperature is 2 to 8 °C.

Supplier: SIGMA ALDRICH MICROSCOPY

Silver nitrate along with iodine are among several inorganic substances used to induce colour in microscopical preparations. Silver nitrate as a biological stain exploits the strong colors of colloidal metallic silver. Silver nitrate is an important component of the silver staining that is used for the detection of proteins separated by polyacrylamide gel electrophoresis. Silver nitrate is a component of the silver stain kit. It is required for image development in diamine as well as non-diamine silver staining.

Supplier: SIGMA ALDRICH MICROSCOPY

Ethyl viologen dibromide (1,1-diethyl- 4,4-bipyridinium dibromide) has been used as an internal standard in analysis of paraquat and diquat in the serum using high-performance liquid chromatography.

Supplier: SIGMA ALDRICH MICROSCOPY

Ethyl viologen diperchlorate has been used in in-situ spectroscopic studies of viologen based electrochromic device.

Supplier: SIGMA ALDRICH MICROSCOPY

Ethylene glycol-bis(succinic acid N-hydroxysuccinimide ester) has been used as a cross-linking agent.

Supplier: SIGMA ALDRICH MICROSCOPY

Ionophore highly selective for Ca2+. Potentiates responses to NMDA but not to quisqualate. In cell culture, stimulates nitric oxide production by calmodulin-dependent constitutive nitric oxide synthase.