Biotin and derivatives
Medchemexpress LLC LAIR1 Human Biotin 20ug
LAIR1 protein has a negative regulatory effect on NK cells B cells and T cells It activates the phosphatases PTPN6 and PTPN11 inhibits calcium increases in B cells and regulates cytokine production in CD4 T cells LAIR1 Protein Human (Biotinylated HEK293 Avi-His) is the recombinant human-derived LAIR1 protein expressed by HEK293 with C-Avi C-6 His labeled tag
Medchemexpress LLC LAIR1 Human Biotin 100ug
LAIR1 protein has a negative regulatory effect on NK cells B cells and T cells It activates the phosphatases PTPN6 and PTPN11 inhibits calcium increases in B cells and regulates cytokine production in CD4 T cells LAIR1 Protein Human (Biotinylated HEK293 Avi-His) is the recombinant human-derived LAIR1 protein expressed by HEK293 with C-Avi C-6 His labeled tag
Medchemexpress LLC B7-H4 Human Biotin 50ug | 50ug
The B7-H4 protein acts as a negative regulator inhibiting T cell-mediated immune responses including activation proliferation cytokine production and cytotoxicity When expressed on tumor macrophages it cooperates with regulatory T cells to suppress tumor-associated antigen-specific T cell immunity B7-H4 Protein Human (Biotinylated HEK293 His-Avi) is the recombinant human-derived B7-H4 protein expressed by HEK293 with C-Avi C-His labeled tag
Medchemexpress LLC Cyanine5.5 NHS ester chloride | 1469277-96-0 | MFCD28385524 | 95.7% | 716.31 g·mol-1 | C44H46ClN3O4 | 5 MG
Cyanine5.5 NHS ester chloride is a near-infrared reactive dye supplied as a solid NHS-activated ester that covalently labels primary amines in proteins, peptides, antibodies, and small molecules for fluorescence detection and imaging. The reagent is provided with analytical documentation to support purity and identity.
Medchemexpress LLC IL-12 Human Biotin 100ug | 100ug
IL-35 protein plays a key role in immune regulation forming IL-12 cytokine with IL12B or IL-35 cytokine with EBI3/IL27B IL-12 modulates T cell and natural killer cell responses and induces interferon gamma production IL-12 Protein Human (Biotinylated HEK293 His-Avi) is a recombinant protein dimer complex containing human-derived IL-12 protein expressed by HEK293 with C-Avi C-His labeled tag IL-12 Protein Human (Biotinylated HEK293 His-Avi) has molecular weight of 40-45 kDa
Medchemexpress LLC DBCO-NHS ester 2 500mg | 1384870-47-6 | 430.45 | C25H22N2O5 | 500 MG
DBCO-NHS ester 2 is a dibenzylcyclooctyne (DBCO)-derived N-hydroxysuccinimide (NHS) ester used as an amine-reactive linker for bioconjugation and antibody-drug conjugate synthesis. The reagent enables copper-free click chemistry via strain-promoted alkyne-azide cycloaddition (SPAAC) and is supplied as a powder for laboratory use.
- Enables strain-promoted alkyne-azide cycloaddition (SPAAC) for copper-free click chemistry.
- Amine-reactive NHS ester for efficient labeling of proteins, peptides, and small molecules.
- Appropriate for antibody-drug conjugate (ADC) linker synthesis and general bioconjugation.
- High reported purity in product documentation.
- Powder form with long-term storage at -20°C; soluble in DMSO (≈14.29 mg/mL) with ultrasonic assistance.
Medchemexpress LLC Bis-PEG9-NHS ester 500mg | 1008402-79-6 | 708.71 | C30H48N2O17 | 500 MG
Bis-PEG9-NHS ester is a PEG9-based bifunctional linker bearing two N-hydroxysuccinimide (NHS) ester groups, designed for amine-targeted bioconjugation and linker applications such as PROTAC and ADC synthesis. It provides a hydrophilic spacer to improve solubility and reduce aggregation during conjugation.
- Bifunctional amine-reactive crosslinker with two NHS ester groups.
- PEG9 spacer increases hydrophilicity and solubility in aqueous media.
- Suitable for PROTAC, ADC, and general bioconjugation to primary amines.
- High chemical purity (≥98%) for reliable conjugation performance.
- Viscous, colorless to light yellow material; moisture sensitive - store sealed and protected from moisture.
- Molecular weight ≈ 708.71 g/mol; molecular formula C30H48N2O17.
Apexbio Technology LLC Biotin-11-CTP 1ml (100 mM)
Biotin-11-CTP is a substrate for SP6 T3 and T7 RNA polymerases It can substitute CTP in RNA labeling reactions with biotin during in vitro transcription Biotin-labeled RNA probes can be detected using streptavidin conjugates and are widely utilized in many molecular biology applications such as in situ hybridization and gene expression microarrays