Biotin and derivatives
Apexbio Technology LLC Concanavalin A (Con A)-Biotin 5x5mg(5 mg/mL)
Concanavalin A (Con A) is a lectin protein derived from Canavalia ensiformis (jack bean) with a molecular weight of approximately 104 kDa Each subunit can bind one Ca2 and one Mn2 ion and contains a carbohydrate-binding site Upon binding these metal ions Con A specifically binds to glycoproteins glycolipids and carbohydrates containing -D-glucose and -D-mannose residues Biotin is a small-molecule water-soluble vitamin that exhibits very strong affinity to avidin Concanavalin A-Biotin is a labeled protein conjugate composed of Concanavalin A linked to biotin widely used in biological research especially for detecting and quantifying biomolecules containing specific carbohydrate structures through immunohistochemistry (IHC) immunocytochemistry (ICC) and enzyme-linked immunosorbent assay (ELISA)
Medchemexpress LLC NOTA-NHS ester | 1338231-09-6 | MFCD30747764 | 90.0% | 400.38 | C16H24N4O8 | 10 MG
NOTA-NHS ester is an N-hydroxysuccinimide (NHS) ester used to conjugate a NOTA chelator to biomolecules for subsequent fluorescent or radioactive nuclide labeling in research applications. It is supplied as a solid reagent with defined molecular characteristics for use in radiopharmaceutical and probe development.
- Provides an NHS-ester functional group for amine conjugation.
- Suitable for fluorescent labeling and radioactive nuclide labeling applications.
- Documented molecular formula C16H24N4O8 and molecular weight 400.38.
- Available in small research pack sizes for synthesis and probe preparation.
- Typically soluble in DMSO for conjugation reactions.
Sigma Aldrich Fine Chemicals Biosciences Biotin powder, BioReagent, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture, >=99% | 58-85-5 | MFCD00005541 | 500MG
Biotin powder, BioReagent, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture, >=99% | Purity: >=99% | Mol Wt: 244.31 | 58-85-5 | MFCD00005541 | 500MG
Medchemexpress LLC Bis-SS-C3-NHS ester | 98604-88-7 | 98.0% | 432.47 g/mol | C16H20N2O8S2 | 100 MG
Bis-SS-C3-NHS ester is a cleavable antibody-drug conjugate (ADC) linker containing a disulfide-based spacer and N-hydroxysuccinimide (NHS) ester reactive groups for amine coupling. It is used to attach cytotoxic payloads to antibodies and enable controlled payload release inside target cells.
- Molecular formula: C16H20N2O8S2.
- Molecular weight: 432.47 g/mol.
- Cas number: 98604-88-7.
- Purity: 98.0%.
- Appearance: white to off-white solid.
- Storage: in solvent, -80°C for up to 6 months; -20°C for up to 1 month; store sealed and away from moisture.
- Available in multiple sizes, including 100 mg, for research use.
Medchemexpress LLC DMABA NHS ester | 58068-85-2 | MFCD16875522 | 99.0% | 262.26 g/mol | C13H14N2O4 | 25 MG
DMABA NHS ester is the N-hydroxysuccinimide ester of DMABA, a reactive labeling reagent used to derivatize primary amines for detection and analysis in biochemical workflows. It is supplied as a high-purity solid and is suitable for research applications requiring amine-specific tagging.
- Reactive toward primary amines for labeling and conjugation.
- Suitable for phospholipid, peptide, and protein derivatization for MS or fluorescence detection.
- High purity ensures minimal side products during reactions.
- Supplied as a solid for convenient storage and handling.
- Store sealed, away from moisture; long-term storage at -20°C recommended.
![Medchemexpress LLC Succinimidyl 6-[3-(2-pyridyldithio)propionamido]hexanoate | 158913-22-5 | MFCD00083163 | 98.1% | 425.52 | C18H23N3O5S2 | 500MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000238859.png-250.jpg)
Medchemexpress LLC Succinimidyl 6-[3-(2-pyridyldithio)propionamido]hexanoate | 158913-22-5 | MFCD00083163 | 98.1% | 425.52 | C18H23N3O5S2 | 500MG
SPDP-C6-NHS ester is an alkyl/ether-based PROTAC linker that features an NHS-activated ester for amine coupling and a pyridyldisulfide moiety for disulfide conjugation. Supplied as a white to off-white solid, it is used in conjugation chemistry and the synthesis of PROTACs and related bifunctional molecules.
- Alkyl/ether-based PROTAC linker with an NHS activated ester.
- Contains a pyridyldisulfide group for disulfide bond formation.
- High purity: 98.1%.
- Molecular formula C18H23N3O5S2; molecular weight 425.52.
- Soluble in DMSO at 50 mg/mL; ultrasonic treatment recommended.
- Store powder at -20°C for long term; store solutions at -80°C for short term.
- Available in small-scale solid quantities for research use.
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 Bis-SS-C3-NHS ester | 98604-88-7 | 98.0% | 432.47 g/mol | C16H20N2O8S2 | 10 MG
Bis-SS-C3-NHS ester is a cleavable disulfide-containing N-hydroxysuccinimide (NHS) ester linker used for bioconjugation. It reacts with primary amines to form stable amide bonds, and the internal disulfide provides a reducible linkage for intracellular payload release, making it suitable for antibody-drug conjugate synthesis and conjugation method development.
- Cleavable disulfide linker for controlled payload release
- N-hydroxysuccinimide (NHS) ester reactive toward primary amines
- High purity suitable for research-scale conjugation
- Available in multiple small-scale pack sizes for method development
- Stable when stored sealed at -20°C and protected from moisture