Biotin and derivatives
Medchemexpress LLC Biotin-PEG3-iodoacetamide | 2306161-26-0 | 97.0% | 586.48 | 100 MG
Biotin-PEG3-Iodoacetamide is a PEG derivative consisting of Biotin, 3 PEG units, and Iodoacetamide. Biotin forms a stable non-covalent bond with streptavidin, making this compound suitable for biochemical assays.
- Composed of Biotin, 3 PEG units, and Iodoacetamide
- Forms a stable non-covalent bond with streptavidin
- Suitable for biochemical assay reagents
- Soluble in DMSO: 100 mg/mL (ultrasonic)
- Purity: 97.0%
Medchemexpress LLC PD-L1 Human Biotin 20ug
Recombinant, biotinylated human PD-L1 produced in HEK293 cells and supplied as a lyophilized 20 μg vial for research use. The protein includes C-terminal human Fc and Avi tags, is characterized for purity and molecular mass, and exhibits specific binding activity suitable for PD-1/PD-L1 interaction and immunoassay applications.
- Expressed in HEK293 mammalian cells.
- Contains C-terminal human Fc and Avi tags.
- Site-specific biotinylation via Avi tag.
- Purity greater than 95% by reducing SDS-PAGE.
- Lyophilized from 20 mM PB, 150 mM NaCl, pH 7.4.
- Predicted molecular mass 54.2 kDa; apparent 70-95 kDa by SDS-PAGE.
- Demonstrated binding activity with ED50 of 15.30 ng/mL.
- Store frozen and aliquot after reconstitution for long-term stability.
Apexbio Technology LLC Concanavalin A (Con A)-Biotin 5mg(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)
eMolecules 2231747-18-3 | Medchem Express | N-piperidine Ibrutinib (hydrochloride) | 5mg | 600899891 | HY-130983 | 422.92 | C22H23ClN6O
Ambeed | 4-(Diphenylphosphino)benzaldehyde | 100mg | 633419231 | A844008 | 5068-18-8 | MFCD26743564 | 290.302 | C19H15OP
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Medchemexpress LLC Dbco-biotin | 1418217-95-4 | MFCD22380751 | 98.5% | 502.63 g/mol | C28H30N4O3S | 25MG
DBCO-Biotin is a copper-free click chemistry reagent that installs a biotin tag on azide-functionalized biomolecules via strain-promoted alkyne-azide cycloaddition (SPAAC). Supplied as a white powder, it is used for bioconjugation, affinity purification and detection, and as a linker component in targeted degrader synthesis. Store at -20 °C, protect from light, and maintain under inert atmosphere when possible.
- Enables copper-free SPAAC bioconjugation to azide-labeled targets.
- Introduces a biotin affinity handle for pull-down and detection assays.
- High purity suitable for analytical and preparative applications.
- Stable solid form when stored at -20 °C and protected from light.
- Compatible with proteins, peptides, and other biomolecules.
Medchemexpress LLC DBCO-biotin | 1418217-95-4 | MFCD22380751 | 98.5% | 502.63 | C28H30N4O3S | 50MG
DBCO-Biotin is an alkyl chain-based PROTAC linker and click-chemistry reagent that contains a dibenzocyclooctyne (DBCO) moiety conjugated to biotin, enabling copper-free strain-promoted alkyne-azide cycloaddition (SPAAC) with azide-containing molecules. Supplied as a white to off-white solid, it is used for biotinylation, conjugation, and PROTAC synthesis in chemical biology applications.
- High purity of 98.5%.
- Molecular weight 502.63 g/mol.
- Molecular formula C28H30N4O3S.
- Soluble in DMSO at 31.25 mg/mL (62.17 mM).
- Store protected from light under inert gas; solid recommended at -20°C.
- Packaged as 50 mg vial.
- Enables copper-free click conjugation via SPAAC.
![Medchemexpress LLC Succinimidyl 6-[3-(2-pyridyldithio)propionamido]hexanoate | 158913-22-5 | MFCD00083163 | 98.1% | 425.52 | C18H23N3O5S2 | 100MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000235572.png-250.jpg)
Medchemexpress LLC Succinimidyl 6-[3-(2-pyridyldithio)propionamido]hexanoate | 158913-22-5 | MFCD00083163 | 98.1% | 425.52 | C18H23N3O5S2 | 100MG
SPDP-C6-NHS ester is a heterobifunctional alkyl/ether-based linker bearing an N-hydroxysuccinimide (NHS) ester and a pyridyldithiol moiety, designed for bioconjugation and assembly of bifunctional molecules such as PROTACs. The NHS ester enables amine coupling to form stable amide bonds, while the pyridyldithiol group allows disulfide formation with thiols, providing modular chemistry for linking ligands, payloads, or proteins.