Biotin and derivatives
Medchemexpress LLC B7-H4 Human Biotin 100ug | 100ug
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 Fp-biotin | 259270-28-5 | MFCD02094222 | 99.8% | 592.75 g/mol | C27H50FN4O5PS | 5 MG
FP-Biotin is a biotin-labeled organophosphorus activity-based probe for detecting and quantifying serine hydrolase enzymes in biochemical and proteomic assays. Supplied as a solid or as a 10 mM solution in DMSO, it enables enrichment of biotinylated peptides by avidin/streptavidin capture for downstream analysis of FAAH, ABHD6, and MAG-lipase activity.
- High purity (99.8%) suitable for analytical applications.
- Biotin tag enables efficient avidin/streptavidin-based enrichment.
- Detects and quantifies serine hydrolase activity such as FAAH, ABHD6, MAG-lipase.
- Available as solid and ready-to-use DMSO solution formats.
- Compatible with plasma and proteomic workflows for biomarker discovery.
Medchemexpress LLC IL-13 Human Biotin 20ug
IL-13 protein is a cytokine involved in allergic inflammation immune response to parasites and B cell proliferation IL-13 Protein Human (Biotinylated HEK293 Avi-His) is the recombinant human-derived IL-13 protein expressed by HEK293 with C-Avi C-6 His labeled tag
Medchemexpress LLC DBCO-NHS ester 2 1g | 1384870-47-6 | 1 G
DBCO-NHS ester 2 is a dibenzoazacyclooctyne (DBCO)-containing N-hydroxysuccinimide (NHS) ester reagent for strain-promoted alkyne-azide cycloaddition (SPAAC). It is used to install a DBCO handle on amine-containing molecules for copper-free click conjugation to azide-functionalized partners and as a cleavable linker in bioconjugation workflows.
- Amine-reactive NHS ester for efficient coupling to primary amines.
- DBCO group enables strain-promoted copper-free click chemistry with azides.
- Suitable for bioconjugation and linker formation in antibody-drug conjugates.
- High reported purity for reproducible conjugation performance.
- Supplied as a 1 g quantity for small-scale synthesis and labeling.
Medchemexpress LLC DBCO-NHS ester 2 250mg | 1384870-47-6 | 250 MG
DBCO-NHS ester 2 is a dibenzocyclooctyne-derived N-hydroxysuccinimide (NHS) ester used as an amine-reactive linker for copper-free click chemistry and antibody-drug conjugate synthesis. The activated NHS ester enables rapid conjugation to primary amines, while the DBCO moiety enables strain-promoted azide-alkyne cycloaddition (SPAAC) without copper catalysts.
- Amine-reactive NHS ester for efficient amide bond formation
- Enables strain-promoted azide-alkyne cycloaddition (SPAAC) for copper-free click chemistry
- High purity (99.69%) suitable for bioconjugation applications
- Molecular weight 430.45 Da; formula C25H22N2O5
- Powder form; store at -20°C for long-term stability
- Packaged as a 250 mg solid for laboratory use
Medchemexpress LLC EphA2 Human Biotin 20ug
The EphA2 protein is an important member of the ephrin receptor subfamily that mediates developmental events particularly in the nervous system It has a single kinase domain and an extracellular region that binds ephrin-A ligands EphA2 Protein Human (Biotinylated HEK293 His-Avi) is the recombinant human-derived EphA2 protein expressed by HEK293 with C-6 His C-Avi labeled tag