For research use only. Not for therapeutic Use.
Biotin-PEG4-OH(CAT: I014205) is a monofunctional polyethylene glycol (PEG) derivative that combines the high-affinity biotin moiety with a short PEG4 spacer terminating in a hydroxyl group. The biotin unit enables strong and specific binding to avidin or streptavidin proteins, making it a powerful tool in affinity purification, biomolecule labeling, and detection assays. The PEG4 chain enhances solubility, improves flexibility, and minimizes steric hindrance, facilitating efficient conjugation and interaction with target molecules. The hydroxyl terminus can be further derivatized or used in surface modifications. Biotin-PEG4-OH is widely utilized in chemical biology, diagnostics, and nanotechnology applications requiring biotin–streptavidin coupling.
| CAS Number | 1217609-84-1 |
| Synonyms | 5-[(3aR,4R,6aS)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]-N-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethyl]pentanamide |
| Molecular Formula | C18H33N3O6S |
| Purity | ≥95% |
| IUPAC Name | 5-[(3aR,4R,6aS)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]-N-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethyl]pentanamide |
| InChI | InChI=1S/C18H33N3O6S/c22-6-8-26-10-12-27-11-9-25-7-5-19-16(23)4-2-1-3-15-17-14(13-28-15)20-18(24)21-17/h14-15,17,22H,1-13H2,(H,19,23)(H2,20,21,24)/t14-,15-,17-/m1/s1 |
| InChIKey | ZXIIDTTUJDVFCP-BFYDXBDKSA-N |
| SMILES | C1C2C(C(S1)CCCCC(=O)NCCOCCOCCOCCO)NC(=O)N2 |
| Chemistry Calculators | Dilution Calculator In vivo Formulation Calculator Molarity Calculator Molecular Weight Calculator Reconstitution Calculator |
