Indicateurs
Les indicateurs sont des substances utilisées dans les titrations et autres analyses chimiques pour signaler un changement de pH ou de composition chimique. Ils sont essentiels pour des mesures précises dans les contextes de recherche et industriels. Chez CymitQuimica, nous offrons une sélection complète d'indicateurs conçus pour garantir précision et reproductibilité dans les applications de laboratoire, notamment pour les réactions acido-basiques et rédox.
575 produits trouvés pour "Indicateurs"
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Resorufin
CAS :The substructure resorufin is a fluorescent dye that changes color from orange to bright pink; excitation/emission maxima = 563/587 nm.Formule :C12H7NO3Degré de pureté :Min. 95 Area-%Couleur et forme :Purple PowderMasse moléculaire :213.19 g/mol5-Carboxy-X-rhodamine, succinimidyl ester
CAS :Single isomer of 5(6)-ROX. It is a fluorescent dye used in RT-PCR methods as an internal reference to determine fluorescence variation that is not associated with the amplification process (plastic of the wells, small differences in concentration or volume, instrument measurements). It produces a constant fluorescence emission signal during the PCR process that is used to normalise the emission produced by the reporter. The fluorescence signal is compatible with that of most reporters. It is used to label the 5â end of oligonucleotides as a reporter in the presence of a quencher at the 3â end (dual labelled probe). During amplification, the dye is cleaved, and the fluorescence increases proportionally with the amount of the specific sequence amplified during the PCR process. The development of the fluorescence signal is therefore specifically related to the amplification of the target sequence. 6-ROX with NHS-activated carboxylic acids reacts with primary amines.Formule :C37H33N3O7Degré de pureté :Min. 95%Couleur et forme :Red To Violet To Black SolidMasse moléculaire :631.67 g/mol5(6)-Carboxyeosin diacetate
CAS :Brominated analog of carboxyfluorescein; singlet oxygen generatorFormule :C25H12Br4O9Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :775.97 g/mol5-(6)-Carboxytetramethylrhodamine
CAS :5-(6)-Carboxytetramethylrhodamine (TAMRA) is a fluorescent dye that is used as a probe for DNA-based analysis. It binds to the 5' end of dsDNA, forming an intrastrand duplex. The fluorescence of TAMRA increases when it binds to dsDNA and can be used as a measure of the amount of DNA in a sample. TAMRA has been shown to be useful in the diagnosis of bowel disease and in the investigation of gene expression during body formation. This dye is also used as a marker for covalent linkages and high molecular weight proteins such as cyclin D2.Formule :C25H22N2O5Degré de pureté :Min. 95 Area-%Couleur et forme :Red PowderMasse moléculaire :430.45 g/mol2',7'-Dichlorodihydrofluorescein diacetate
CAS :Cell permeable reagent for use in detection of peroxidase activityFormule :C24H16Cl2O7Degré de pureté :Min. 97 Area-%Couleur et forme :PowderMasse moléculaire :487.29 g/mol5-Carboxyfluorescein
CAS :5-Carboxyfluorescein (5-FAM) is a self-quenching dye and one of the most common labelling agents for biomolecules, cell staining and localisation studies. The fluorescence is pH dependent, therefore it has been used to measure the internal pH of cells. As it is only membrane permeable to dead cells, it can be used as a staining agent to distinguish viable and non-viable cells. It is also used in PCR to label the 5â end of oligonucleotides in the presence of a quencher at the 3â end (dual labelled probe). During the amplification process, the dye is cleaved and the fluorescence increases proportionally with the amount of the specific sequence amplified during the PCR process. The development of the fluorescence signal is therefore specifically related to the amplification of the target sequence. The carboxylic acid can be activated to react with a primary amine.Formule :C21H12O7Degré de pureté :Min. 98 Area-%Couleur et forme :Yellow PowderMasse moléculaire :376.32 g/mol4-Hydroxyphenethyl alcohol
CAS :Produces a fluorogenic signal in the presence of peroxidaseFormule :C8H10O2Degré de pureté :Min. 98 Area-%Couleur et forme :PowderMasse moléculaire :138.16 g/molICG-alkyne
CAS :The non-invasive near-infrared fluorescence imaging dye ICG is used in ophthalmologic angiography to determine cardiac output and liver blood flow and function. The ICG alkyne can be used to label azido functionalised biomolecules eg glycans, lipids and peptides via click chemistry protocols.Formule :C48H53N3O4SDegré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :768 g/mol4-Ethylphenol
CAS :Produces a fluorogenic signal in the presence of peroxidaseFormule :C8H10ODegré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :122.16 g/molIndocyanine green
CAS :Indocyanine green is a fluorescent dye with a variety of applications in medical imaging. It has been used to diagnose and evaluate the activity of cancer cells and brain functions. Indocyanine green has also been used as an angiographic agent for diagnosis of solid tumours. In addition, it can be used to evaluate liver function and the blood flow in the brain. The biological properties of indocyanine green have not yet been fully elucidated, but it is known that it binds to hepatocyte-like cells in culture and is found at high levels in human serum. This dye shows fluorescence when bound to DNA or RNA, which indicates its possible use as a molecular probe for detecting carcinoma cells.
Indocyanine green is a STT3B inhibitor and has been shown to prevent α-amanitin toxicity in mice (Wang et al, 2023). This means it could be a possible antidote to poisoning by Amanita, such as death cap mushroom Amanita phalloides, which is the cause of over 90% of fatal mushroom poisoning.Formule :C43H47N2O6S2·NaDegré de pureté :(%) Min. 95%Couleur et forme :Green PowderMasse moléculaire :774.96 g/mol5-Carboxytetramethylrhodamine
CAS :5-Carboxytetramethylrhodamine - (TAMRA) is a widely employed fluorescent dye (orange/red) that is suitable for different uses. In PCR applications, it has been used as both a reporter at the 5â or as a quencher at the 3â end. TAMRA-labelled oligonucleotides have been used to study interactions with DNA or DNA/protein interactions. It is an excellent fluorescent acceptor for FRET applications with a suitable dye pair. It is used as a protein/antibody labelling agent for structural studies, immunochemistry and flow cytometry. Bioconjugation is generally performed through coupling of the carboxylic acid to a primary amine at the N-terminus of a protein, on lysine side chains or amino-modified oligonucleotide.Formule :C25H22N2O5Degré de pureté :Min. 95 Area-%Couleur et forme :Green PowderMasse moléculaire :430.45 g/mol3-Bodipy-propanoic acid
CAS :Reactive fluorescent labeling reagentFormule :C14H15BF2N2O2Couleur et forme :Red PowderMasse moléculaire :292.09 g/mol6-NBDG
CAS :Nonhydrolyzable fluorescent glucose analog used to monitor glucose uptakeFormule :C12H14N4O8Degré de pureté :Min. 95%Couleur et forme :PowderMasse moléculaire :342.26 g/molArsenazo III [Spectrophotometric reagent for U, Th, Zr and other metals, Indicator for the precipitation titration of SO4 with Ba]
CAS :Formule :C22H18As2N4O14S2Degré de pureté :>90.0%(T)Couleur et forme :Dark green to Dark red to Black powder to crystalineMasse moléculaire :776.362,6-Dichloroindophenol Sodium Salt Dihydrate
CAS :Formule :C12H6Cl2NNaO2·2H2ODegré de pureté :>95.0%(T)Couleur et forme :Green to Dark green powder to crystalMasse moléculaire :326.10Calmagite [Metal indicator for Ca, Mg etc.]
CAS :Formule :C17H14N2O5SCouleur et forme :Red to Dark blue to Black powder to crystalMasse moléculaire :358.37Variamine Blue B Sulfate (=4-Amino-4'-methoxydiphenylamine Sulfate) [for Iron-Titration]
CAS :Formule :C13H14N2O·H2SO4Degré de pureté :>97.0%(N)Couleur et forme :Gray to Dark blue to Black powder to crystalMasse moléculaire :312.34Nuclear Fast Red
CAS :Formule :C14H8NNaO7SCouleur et forme :Dark brown to maroon, powderMasse moléculaire :357.27Reactive Red 21 (Remazol Red BB)
CAS :Formule :C26H19N4Na3O15S4Degré de pureté :min. 98%Couleur et forme :Dark red, PowderMasse moléculaire :824.68
![Calmagite [Metal indicator for Ca, Mg etc.]](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F3B%2Fthumb-webp%2FC0008.webp&w=3840&q=75)
![Variamine Blue B Sulfate (=4-Amino-4'-methoxydiphenylamine Sulfate) [for Iron-Titration]](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F3B%2Fthumb-webp%2FM0495.webp&w=3840&q=75)
