Biotin and derivatives
Medchemexpress LLC N3-C2-NHS ester | 850180-76-6 | MFCD24452814 | 99.8% | 212.16 g/mol | C7H8N4O4 | 10 MG
N3-C2-NHS ester is a noncleavable ADC linker and NHS-activated ester reagent used for bioconjugation and the synthesis of antibody-drug conjugates. It is an oil-like, colorless to off-white small molecule with high purity and good solubility in DMSO for research applications.
- Noncleavable ADC linker for antibody-drug conjugation.
- NHS-activated ester enables amine-selective bioconjugation.
- High purity suitable for synthetic chemistry (≈99.8%).
- Soluble in DMSO; ultrasonic assistance may be required.
- Store at -20 °C in pure form; follow solvent-storage guidelines.
- Available in small research sizes, including 10 MG.
Medchemexpress LLC Endo-BCN-NHS carbonate | 1426827-79-3 | MFCD19705416 | 99.5% | 291.30 g/mol | C15H17NO5 | 1 G
endo-BCN-NHS carbonate is an NHS carbonate reagent that installs a bicyclo[6.1.0]non-4-ynyl (BCN) strained alkyne onto primary amines, forming carbamate linkages. The BCN handle enables copper-free strain-promoted azide-alkyne cycloaddition (SPAAC) for efficient bioconjugation of proteins, peptides, and polymers, and is commonly used to functionalize biomolecules for hydrogel cross-linking and cell-encapsulation studies.
- Reacts with primary amines to form stable carbamate linkages.
- Provides a strained alkyne handle for copper-free SPAAC bioconjugation.
- Enables efficient functionalization of proteins, peptides, and polymers.
- Facilitates hydrogel cross-linking and cell encapsulation applications.
- Supplied as a high-purity solid suitable for research use.
TARGETMOL CHEMICALS INC DSPE-NHS 25MG
Also available in 5 mg, 10 mg, 50 mg, 100 mg and bulk. Please contact Fisher for quotes. DSPE-NHS is a lipid that is often combined with other compounds to form nanoemulsions that can be used in skin care products and pharmaceuticals. Purity 99.85%
Medchemexpress LLC KAT6A protein, human (biotinylated, Avi) | 93.5% | 10UG
KAT6A Protein, Human (Biotinylated, Avi) is a recombinant fragment of the human histone acetyltransferase KAT6A (residues G497-I780), expressed in E. coli and N-terminally labeled with an Avi biotinylation tag. The material is provided at microgram scale for research use, characterized by reducing SDS-PAGE, and has an expected molecular weight of approximately 35.6 kDa.
- Biotinylated via Avi tag for streptavidin-based capture and detection.
- Suitable for protein-protein interaction and binding assays.
- Purity greater than 90% as determined by reducing SDS-PAGE.
- Recombinantly expressed in E. coli for scalable production.
- Covers the KAT6A domain G497-I780 for domain-specific studies.
- Supplied in microgram quantities for biochemical and biophysical assays.
Medchemexpress LLC Bis-PEG9-NHS ester 250mg | 1008402-79-6 | 250 MG
Bis-PEG9-NHS ester is a homobifunctional polyethylene glycol (PEG) linker bearing two N-hydroxysuccinimide (NHS) ester reactive groups, used for amine-directed bioconjugation in the synthesis of PROTACs and antibody-drug conjugates. The PEG9 spacer increases hydrophilicity to improve solubility and reduce steric hindrance during conjugation.
- Contains two NHS ester reactive groups for amine coupling.
- PEG9 spacer increases hydrophilicity and solubility in aqueous media.
- High purity (≥98.0%) suitable for research and conjugation chemistry.
- Molecular weight 708.71 g/mol and chemical formula C30H48N2O17.
- Viscous, colorless to light yellow appearance for easy handling.
- Applicable to protein labeling, bioconjugation, and linker synthesis.
Cell Signaling Technology Goat Anti-Mouse IgG3 Antibody
Goat Anti-Mouse IgG3 Antibody (Biotin Conjugate) 1 mg
Medchemexpress LLC MeCY5-NHS ester triethylamine | 00-00-0 | 95.3% | C42H56N4O10S2 | 10MG
The triethylamine salt of a Cy5-family N-hydroxysuccinimide (NHS) ester for covalent fluorescent labeling of biomolecules. It reacts with primary amines on proteins, peptides, and oligonucleotides to form stable amide linkages, enabling far-red fluorescence detection in imaging and biochemical assays. The reagent is supplied in research-scale vials for conjugation workflows.
- Reacts with primary amines to form stable amide bonds.
- Suitable for labeling proteins, peptides, and oligonucleotides.
- Cy5-family fluorophore for far-red detection.
- Supplied as a triethylamine salt for handling and solubility.
- Available in small pack sizes for research use.
- Purity 95.3%.
Sigma Aldrich Fine Chemicals Biosciences (+)-Biotin Hydrazide | 66640-86-6 | MFCD00078532 | 100mg
(+)-Biotin Hydrazide | Purity: 97% | Mol Wt: 258.34 | 66640-86-6 | MFCD00078532 | 100mg