Esta buscando: SIGMA ALDRICH MICROSCOPY

Numero del catalogo: (201960-10G)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Acid Yellow 25, Dye content 40 %

UOM: 1 * 10 g

Promoción

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Siliconizing reagent for glass and other surfaces. Sigmacote® is a solution of a chlorinated organopolysiloxane in heptane that readily forms a covalent, microscopically thin film on glass.

Certificados

Numero del catalogo: (C1154-100MG)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: 4-Chloro-7-sulphobenzofurazan ammonium salt, en polvo

UOM: 1 * 100 mg

Promoción

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Pyrocatechol Violet (PV) is a sulfone phthalein dye. It chelates metal ions. The metal-PV complex is bluish-violet in colour.

Numero del catalogo: (201820-25G)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Acid Red 183, Dye content 30 %

UOM: 1 * 25 g

Promoción

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Melanin is a ubiquitous and prominent pigment responsible for color of skin, hair and eyes. Melanin is classified into eumelanin and pheomelanin. Eumelanin is black to dark brown pigment and is present in black hair and retina of the eye. Pheomelanin is yellow to reddish brown pigment present is red hair and red feathers. Melanins are high molecular weight pigments synthesised from phenolic or indolic precursors and is widely present in animals, plants and microorganisms.

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Fluoresceína 95% (dye content), Sigma-Aldrich®

Numero del catalogo: (318701-500ML)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Bromocresol green is a sulfonephthalein dye. It is mainly used for measuring serum albumin. In acidic conditions, bromocresol green interacts with albumin, thereby resulting in an increase in absorbance at 630 nm. The change in absorbance is linked with the concentration of albumin. Bromocresol Green is also a pH indicator, changing from yellow (pH 3.8) to blue color (5.4). It is widely used as a colloidal pigment.

UOM: 1 * 500 mL

Promoción

Numero del catalogo: (P6863-25MG)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Fluorescent diazoalkane useful as an HPLC derivatization reagent for carboxylic acid detection with better detection limit parameters and greater chemical stability than the commonly used 9-anthryldiazomethane.

UOM: 1 * 25 mg

Promoción

Numero del catalogo: (646679-5G)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: 1,1,2-Trimethyl-3-(4-sulfobutyl)benz[e]indolium, inner salt, Dye content 90 % (1,1,2-Trimethyl-3-(4-sulfobutyl)-1H-benz[e]indolium hydroxide, inner salt; 1-(4-Sulfobutyl)-2,3,3-trimethyl-4,5-benzindolium, inner salt)

UOM: 1 * 5 g

Promoción

Numero del catalogo: (454648-5G)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: 4-tert-Butylphthalic anhydride has been used to synthesise novel yellow quinophthalone dyes for LCD colour filters.

UOM: 1 * 5 g

Promoción

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Poly-L-lysine is a positively charged amino acid polymer with approximately one HBr per lysine residue. The hydrobromide allows the poly-L-lysine to be in a crystalline form soluble in water. A small amount of product may be found in the beta structure because the HBr interferes with hydrogen bonding between amino and either the carboxyl groups or N or O containing moieties.

Numero del catalogo: (510998-5G)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Azul de bromoclorofenol 95% (dye content), Sigma-Aldrich®

UOM: 1 * 5 g

Promoción

Numero del catalogo: (861-10ML)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Kit component for Sigma Alkaline Phosphatase Procedure, kits 86C and 86R

UOM: 1 * 10 mL

Promoción

Numero del catalogo: (A0885-25G)

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Aurintricarboxylic acid ammonium salt has been used as a nuclease inhibitor to study its effects on transfection.

UOM: 1 * 25 g

Promoción

Proveedor: SIGMA ALDRICH MICROSCOPY

Descripción: Estriol 3-sulfate sodium salt, (1,3,5(10)-Estratriene-3,16alpha,17beta-triol 3-sulfate; 3,16alpha,17beta-Trihydroxy-1,3,5(10)-estratriene 3-sulfate)