Biotin and derivatives
eMolecules Z-D-Phe-ONp | 2578-85-0 | MFCD00069875 | 1g
Combi-Blocks | Z-D-Phe-ONp | 1g | 117565853 | SS-9041 | 95.000 | 2578-85-0 | MFCD00069875 | 420.421 | C23H20N2O6
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Medchemexpress LLC Biotin hydrazide | 66640-86-6 | MFCD00078532 | 258.34 g/mol | C10H18N4O2S | 1 ML
Biotin hydrazide is a carbonyl-reactive biotinylation reagent used to label oxidized glycans, glycoproteins, and other carbonyl-containing biomolecules. It is supplied as a solid or as a 10 mM solution in DMSO for use in conjugation, detection, and enrichment workflows.
- Reacts with carbonyl groups to form stable hydrazone linkages.
- Supplied as solid or as a 10 mM solution in DMSO for convenience.
- Enables biotin-based detection and affinity purification workflows.
- Soluble in DMSO and moderately soluble in water, with solubility data provided.
- Stable when stored under recommended temperatures for long-term use.
Medchemexpress LLC PCSK9 Human Biotin 20ug
The PCSK9 protein is an important regulator of plasma cholesterol homeostasis affecting LDL receptor family members such as LDLR and VLDLR It promotes their intracellular degradation and enhances hepatic LDLR degradation through non-proteolytic mechanisms PCSK9 Protein Human (Biotinylated V474I G670E HEK293 Avi) is the recombinant human-derived PCSK9 protein expressed by HEK293 with C-Avi labeled tag and V474I G670E mutation
eMolecules H-Leu-onp hcl | 75691-76-8 | MFCD00270558 | 1g
Combi-Blocks, Inc. | H-Leu-onp hcl | 1g | 603149427 | SS-5718 | 95.000 | 75691-76-8 | MFCD00270558 | 288.730 | C12H17ClN2O4
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![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.
Medchemexpress LLC m-PEG1-NHS ester 250mg | 1027371-75-0 | 201.18 g/mol | C8H11NO5 | 250 MG
m-PEG1-NHS ester is a PEG/alkyl/ether-based N-hydroxysuccinimide (NHS) ester linker used for assembling proteolysis targeting chimeras (PROTACs) and for amine-directed bioconjugation. Supplied as a solid, it provides a short PEG spacer with an activated ester for efficient coupling in synthetic workflows.
- PEG/alkyl/ether-based linker for PROTAC synthesis.
- N-hydroxysuccinimide ester reactive toward primary amines.
- Molecular weight 201.18 g/mol.
- Chemical formula C8H11NO5.
- Purity 95.0%.
- Appearance white to light yellow solid.
- Storage: powder -20°C (3 years); in solvent -80°C (6 months), -20°C (1 month).
- Available package size 250 MG.