Biotin and derivatives
eMolecules Azido-PEG11-alcohol | 2252392-53-1 | MFCD29052166 | 1g
Broadpharm | Azido-PEG11-alcohol | 1g | 296213197 | BP-22977 | 98.000 | 2252392-53-1 | MFCD29052166 | 527.612 | C22H45N3O11
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Medchemexpress LLC Biotin LC hydrazide | 109276-34-8 | MFCD00077659 | 99.8% | 371.50 g/mol | C16H29N5O3S | 25 MG
Biotin LC hydrazide is a long-chain biotinylation reagent that reacts with aldehyde groups generated by periodate oxidation of glycoproteins, enabling selective labeling of carbohydrate-containing biomolecules for detection and affinity capture.
- Reacts with periodate-oxidized glycoproteins for selective carbohydrate labeling.
- Provides a long spacer arm to reduce steric hindrance in conjugation.
- Enables affinity purification and detection via biotin-streptavidin interactions.
- Solid powder stable when stored protected from light at 4°C; in solvent, store frozen for extended stability.
- High chemical purity supports reproducible conjugation performance.
Medchemexpress LLC CXADR Mouse Biotin 100ug
CXADR protein is a key component of the epithelial apical junction complex which maintains the integrity of tight junctions and enables leukocyte migration through adhesive interactions with JAML This interaction activates - T cells and promotes tissue repair through cell signaling involving PI3 kinase and MAP kinase CXADR Protein Mouse (Biotinylated HEK293 Avi-His) is the recombinant mouse-derived CXADR protein expressed by HEK293 with C-Avi C-6 His labeled tag
Medchemexpress LLC Biotin-Ahx-angiotensin II human | 115102-72-2 | 100.0% | 1385.63 g/mol | C66H96N16O15S | 5 MG
Biotin-Ahx-Angiotensin II human is a biotin-labeled peptide based on the human angiotensin II sequence, modified with an aminohexanoic acid spacer and provided as a lyophilized powder for research use. It is designed for biochemical and receptor-binding studies where a biotin tag enables affinity capture or detection using streptavidin-based methods.
- Biotin tag enables streptavidin-based capture and detection.
- Aminohexanoic acid spacer helps preserve biological activity and accessibility.
- Sequence corresponds to human angiotensin II for receptor-binding studies.
- Supplied as a powder for convenient storage and handling.
- High purity suitable for biochemical and binding assays.
Medchemexpress LLC M-PEG14-NHS ester | 00-00-0 | 95.0% | 773.86 g/mol | C34H63NO18 | 5 MG
m-PEG14-NHS ester is a methoxy-terminated polyethylene glycol linker bearing an N-hydroxysuccinimide (NHS) ester functional group. It is designed for amine-reactive conjugation in the synthesis of proteolysis targeting chimeras (PROTACs) and related bioconjugation workflows, supplied as a white to off-white solid for research use only.
- Provides an m-PEG14 spacer for flexible linker length
- NHS ester enables efficient coupling to primary amines
- High purity suitable for synthetic applications
- Offered in small quantities for laboratory-scale synthesis
- Stable when stored sealed at low temperature and protected from moisture
Medchemexpress LLC Iodoacetyl-LC-biotin | 93285-75-7 | MFCD00054987 | 99.2% | 510.43 g/mol | C18H31IN4O3S | 5 MG
Iodoacetyl-LC-biotin is a thiol-reactive, biotinylated electrophile reagent used for site-specific labeling and enrichment of cysteine-containing proteins. It reacts with sulfhydryl groups to form stable thioether bonds, enabling affinity capture and detection in proteomics and biochemical assays.
- Thiol-specific labeling of cysteine residues for targeted modification.
- Forms stable thioether bonds for irreversible protein labeling.
- Enables affinity enrichment and sensitive detection of modified proteins.
- Compatible with proteomics workflows and subcellular proteome analysis.
- Supplied as a solid with high purity for research applications.
Medchemexpress LLC DBCO-NHS ester 3 50mg | 1393350-27-0 | 416.43 g/mol | C24H20N2O5 | 50 MG
DBCO-NHS ester 3 is an amine-reactive dibenzylcyclooctyne (DBCO) N-hydroxysuccinimide (NHS) ester used for copper-free click chemistry and as a linker in antibody-drug conjugate and bioconjugation workflows. It reacts with primary amines to install a DBCO handle for strain-promoted alkyne-azide cycloaddition (SPAAC) with azide-functionalized partners.
- Amine-reactive NHS ester for efficient conjugation to primary amines.
- Facilitates copper-free strain-promoted alkyne-azide cycloaddition (SPAAC).
- Suitable for use as a linker in antibody-drug conjugate and bioconjugation workflows.
- Supplied as a white to off-white solid, compatible with low-temperature storage.
- Typical purity around 95.6% and molecular weight 416.43 g/mol support reliable reaction performance.
Medchemexpress LLC PD-L1 Mouse Biotin 50ug | 50ug
PD-L1 protein serves as a ligand for the inhibitory receptor PDCD1/PD-1 and is critical for maintaining immune tolerance This interaction modulates T cell activation limits effector responses and may stimulate IL10-producing T cell subsets PD-L1 Protein Mouse (Biotinylated HEK293 His) is the recombinant mouse-derived PD-L1 protein expressed by HEK293 with C-His labeled tag
Medchemexpress LLC PD-L1 Mouse Biotin 20ug | 20ug
PD-L1 protein serves as a ligand for the inhibitory receptor PDCD1/PD-1 and is critical for maintaining immune tolerance This interaction modulates T cell activation limits effector responses and may stimulate IL10-producing T cell subsets PD-L1 Protein Mouse (Biotinylated HEK293 His) is the recombinant mouse-derived PD-L1 protein expressed by HEK293 with C-His labeled tag
Medchemexpress LLC MeCY5-NHS ester triethylamine | 00-00-0 | 96.2% | 777.94 g/mol | C36H40N3KO10S2 | 5 MG
MeCY5-NHS ester (potassium) is an amine-reactive Cy5-family fluorescent dye supplied as the NHS-ester potassium salt for labeling proteins, peptides, and nucleic acids in fluorescence assays and imaging.
- Reactive N-hydroxysuccinimide (NHS) ester for covalent labeling of primary amines.
- Cy5-family near-infrared fluorescence, approx. 649/670 nm excitation/emission.
- Potassium salt form with improved water solubility for aqueous labeling.
- Supplied with analytical documentation, including SDS, COA, 1H NMR, and LC-MS.
- Available in lab-scale quantities suitable for conjugation experiments.
TARGETMOL CHEMICALS INC DBCO-NHS ester 50MG
Also available in 1 mL, 5 mg, 10 mg, 25 mg, 100 mg and bulk. Please contact Fisher for quotes. DBCO-NHS ester is an ADC linker, cleavable 3-unit PEG, which can also be used to synthesize antibody drug conjugates (ADCs). Purity 98.02%
Medchemexpress LLC ATRA-biotin (biotin-ATRA-conjugate) | 2226143-93-5 | 98.4% | 625.90 | C36H55N3O4S | 5 MG
ATRA-biotin is a biotin-conjugated derivative of all-trans retinoic acid designed to track ATRA localization and interactions in cells and tissues. The biotin moiety permits detection and affinity capture using streptavidin/avidin reagents, facilitating imaging, pull-down, and binding studies. The compound is supplied at high reported purity and includes documentation for characterization and safe handling.
- Biotin tag enables streptavidin-based detection and affinity capture.
- Suitable for tracking ATRA localization in cells and tissue samples.
- High reported purity supports biochemical and cell-based assays.
- Available in multiple pack sizes for scalability of experiments.
- Provided with datasheet, COA, and SDS for characterization and safety.