Biotin and derivatives
Apexbio Technology LLC Cy3 NHS ester(Et)(Synonyms: Cy3 NHS ester, Cy3 NHS Ester (ethyl), Cyanine3 NHS ester, Cyanine 3 NHS ester, Cy3 Mono NHS Ester), 5mg.
Cy3 NHS ester(Et) is a small molecule commonly employed in biomedical research as a reactive fluorescent reagent Through its N-hydroxysuccinimide (NHS) ester functionality it readily forms stable covalent linkages with primary amine groups present on proteins peptides and other biomolecules Due to its fluorescent character Cy3 NHS ester(Et) is extensively utilized for labeling biological targets enabling visualization and tracking in fluorescence microscopy and imaging analyses This property facilitates investigations into molecular localization trafficking processes and pathology-associated pathways in various experimental models
Medchemexpress LLC Biotin-C5-azide | 1260586-88-6 | 98.9% | 255.34 g/mol | C10H17N5OS | 10 MG
Biotin-C5-Azide is a biotinylation reagent containing a terminal azide group for click chemistry. It is intended for research use to prepare biotinylated conjugates via copper-catalyzed or strain-promoted azide-alkyne cycloaddition.
![Medchemexpress LLC Succinimidyl 6-[3-(2-pyridyldithio)propionamido]hexanoate | 158913-22-5 | MFCD00083163 | 98.1% | 425.52 g/mol | C18H23N3O5S2 | 1G](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000238902.png-250.jpg)
Medchemexpress LLC Succinimidyl 6-[3-(2-pyridyldithio)propionamido]hexanoate | 158913-22-5 | MFCD00083163 | 98.1% | 425.52 g/mol | C18H23N3O5S2 | 1G
Succinimidyl 6-[3-(2-pyridyldithio)propionamido]hexanoate is an alkyl/ether-based PROTAC linker containing an N-hydroxysuccinimide (NHS) ester for amine coupling and a pyridyldisulfide moiety for thiol-directed conjugation. It is used in PROTAC and bioconjugation synthesis and features a reducible disulfide that enables controlled cleavage in downstream applications.
- Provides an NHS ester for efficient conjugation to primary amines.
- Contains a pyridyldisulfide cleavable disulfide for thiol chemistry.
- Suitable as a linker in PROTAC and bioconjugation synthesis.
- Molecular formula C18H23N3O5S2; molecular weight 425.52 g/mol.
- Soluble in DMSO at approximately 50 mg/mL; may require sonication.
- Store powder at -20°C for long-term stability; solvent solutions require low-temperature storage.
- High purity (98.1%) suitable for research applications.
Medchemexpress LLC Dbco-biotin | 1418217-95-4 | MFCD22380751 | 98.5% | 502.63 g/mol | C28H30N4O3S | 25MG
DBCO-Biotin is a copper-free click chemistry reagent that installs a biotin tag on azide-functionalized biomolecules via strain-promoted alkyne-azide cycloaddition (SPAAC). Supplied as a white powder, it is used for bioconjugation, affinity purification and detection, and as a linker component in targeted degrader synthesis. Store at -20 °C, protect from light, and maintain under inert atmosphere when possible.
- Enables copper-free SPAAC bioconjugation to azide-labeled targets.
- Introduces a biotin affinity handle for pull-down and detection assays.
- High purity suitable for analytical and preparative applications.
- Stable solid form when stored at -20 °C and protected from light.
- Compatible with proteins, peptides, and other biomolecules.
Apexbio Technology LLC Sulfo-NHS-LC-Biotin, 100mg. Cas: 127062-22-0 MFCD: MFCD00078534. Amine-reactive biotinylation reagent, long chain
Intermediate length, water-soluble biotinyltation reagent used to attach biotin to primary amines 127062-22-0. MFCD00078534
Medchemexpress LLC Sulfo-TAG NHS ester (disodium) | 482618-42-8 | 88.4% | 1185.12 g/mol | C43H39N7Na2O16RuS4 | 1 MG
Sulfo-TAG NHS ester (disodium) is a water-soluble N-hydroxysuccinimide (NHS) ester reagent for covalent labeling of proteins and antibodies via primary amine groups. The reagent contains a ruthenium-based electrochemiluminescent tag that enables sensitive electrochemiluminescence (ECL) detection when conjugated to antibodies. Supplied as a solid for research use; handle and store according to the supplier's SDS and COA.
- Couples to primary amine groups on proteins and antibodies for stable conjugation.
- Enables electrochemiluminescence (ECL) detection when attached to antibodies.
- Water-soluble formulation suitable for aqueous conjugation reactions.
- Provided with storage recommendations to maintain stability.
- Supplied with certificate of analysis (COA) and safety data sheet (SDS) specifying purity and molecular data.
Apexbio Technology LLC Biotin-16-dUTP(Synonyms: Biotin-16-2'-deoxyuridine-5'-triphosphate, Biotin-16-dUTP nucleotide), 10ul (5 mM).
Biotin-16-dUTP is a biotin-labeled nucleotide analog utilized extensively in biomedical research for nucleic acid modification and detection Structurally modified to contain a biotin moiety linked via a 16-carbon spacer this compound functions by enzymatic incorporation into DNA strands mediated by DNA polymerases Following integration the biotin group serves as an affinity tag enabling subsequent detection through biotin-binding proteins such as streptavidin Applications include DNA labeling techniques in fluorescence microscopy and flow cytometry facilitating the visualization and analysis of nucleic acids in vitro