Protein Labeling Reagents
Cayman Chemical BIotIn-LC-LC-NHS 10mg
A biotinylation reagent; contains an NHS moiety to facilitate coupling reactions and 30.5 Å spacer to decrease steric hindrance; has been used to biotinylate small molecules such as paclitaxel and coenzyme Q10
Cayman Chemical BIotIn-LC-LC-NHS 25mg
A biotinylation reagent; contains an NHS moiety to facilitate coupling reactions and 30.5 Å spacer to decrease steric hindrance; has been used to biotinylate small molecules such as paclitaxel and coenzyme Q10
Cayman Chemical BIotIn-LC-LC-NHS 5mg
A biotinylation reagent; contains an NHS moiety to facilitate coupling reactions and 30.5 Å spacer to decrease steric hindrance; has been used to biotinylate small molecules such as paclitaxel and coenzyme Q10
Cayman Chemical C6 Biotin Ganglioside GM1 d1
An affinity probe for ganglioside GM1 binding partners; has been used to detect ganglioside GM1 binding partners in vitro
Medchemexpress LLC Desthiobiotin-NHS ester | 80750-24-9 | MFCD08062086 | 98.0% | 311.33 g·mol⁻¹ | C14H21N3O5 | 50 MG
Desthiobiotin-NHS ester is an amine-reactive biotinylation reagent (N-hydroxysuccinimide ester) used to covalently label primary amines on proteins and other biomolecules. The desthiobiotin tag binds streptavidin with lower affinity than biotin, allowing reversible capture and mild elution for affinity workflows. The compound is provided as a dry solid intended for storage at low temperature and use in standard bioconjugation protocols.
- Reacts with primary amines to form stable amide bonds.
- Enables reversible streptavidin-based capture and mild elution.
- High purity for reliable conjugation results.
- Suitable for protein labeling, affinity purification, and probe construction.
- Available in small-scale packages for laboratory use.
Medchemexpress LLC Desthiobiotin polyethyleneoxide iodoacetamide | 00-00-0 | MFCD06202009 | 97.7% | C21H38IN5O6 | 10MG
Desthiobiotin polyethyleneoxide iodoacetamide is a cysteine-reactive labeling reagent for chemoproteomic workflows that derivatizes thiol groups for enrichment and analysis. It couples a desthiobiotin affinity tag to targets via a polyethylene oxide spacer and an iodoacetamide electrophile that alkylates cysteine residues. Supplied for research use only.
- Enables selective labeling of cysteine residues for downstream enrichment and mass spectrometry analysis.
- Includes desthiobiotin affinity tag for reversible streptavidin-based capture.
- Polyethylene oxide spacer improves solubility and reduces steric hindrance.
- Iodoacetamide electrophile provides rapid and specific thiol alkylation under mild conditions.
- Provided with reported purity suitable for proteomic applications.
Medchemexpress LLC Desthiobiotin-NHS ester | 80750-24-9 | MFCD08062086 | 98.0% | 311.33 g/mol | C14H21N3O5 | 10 MG
Desthiobiotin-NHS ester is an N-hydroxysuccinimide (NHS)-activated biotin analog used to covalently label primary amines on proteins and other biomolecules. The reagent reacts with lysine residues to form stable amide bonds, enabling affinity capture and detection with streptavidin-based tools.
- NHS-activated ester reacts selectively with primary amines.
- Forms stable amide bonds for durable conjugation.
- Enables streptavidin-based affinity capture and detection.
- Suitable for protein labeling, pull-down assays, and probe development.
- High purity, commonly supplied at 98.0%.
- Available in small lab-scale quantities such as 10 mg.
Cayman Chemical 17a-hydroxy Pregnolon 500mg
A metabolite of pregnenolone; a precursor in the biosynthesis of DHEA; plasma levels are elevated in patients with type II 3β-hydroxysteroid dehydrogenase deficiency
Biotium CD63 (Late Endosomes Marker)(LAMP3/2881), Biotin conjugate, 0.1mg/mL
This MAb recognizes protein of 26 kDa-60 kDa, which is identified as CD63. The tetraspanins are integral membrane proteins expressed on cell surface and granular membranes of hematopoietic cells and are components of multi-molecular complexes with specific integrins. The tetraspanin CD63 is a lysosomal membrane glycoprotein that translocates to the plasma membrane after platelet activation. CD63 is expressed on activated platelets, monocytes and macrophages, and is weakly expressed on granulocytes, T cell and B cells. It is located on the basophilic granule membranes and on the plasma membranes of lymphocytes and granulocytes. CD63 is a member of the TM4 superfamily of leukocyte glycoproteins that includes CD9, CD37 and CD53, which contain four transmembrane regions. CD63 may play a role in phagocytic and intracellular lysosome-phagosome fusion events. CD63 deficiency is associated with Hermansky-Pudlak syndrome and is strongly expressed during the early stages of melanoma pr
Cayman Chemical Fluorescein 5-isothiocyanate
An amine- and thiol-reactive fluorescent probe; forms conjugates with proteins, lipids, and other molecules for detection by a variety of fluorescent-based applications; ex/em = 494/519 nm, respectively
