Biotin-PEG4-carboxylic acid
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 2925-100mg | 100 mg | $110 | in stock | |
| 2925-1g | 1 g |
$550
|
in stock |
Biotin-PEG4-carboxylic acid is a bifunctional tetraethyleneglycol derivative bearing a carboxy group and biotin moiety. The carboxy group can be activated with peptide coupling reagents like PyBOP or carbodiimides like EDC to form a stable amide linkage with amines. Biotin-labeled biomolecules can be bound to avidin or streptavidin for further purification and detection.
The structure of this reagent features a long hydrophilic PEG4 linker that separates biotin residue from the target molecule for efficient binding with streptavidin. The linker also enhances aqueous solubility to facilitate conjugation.
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Biotin-PEG2-azide
Biotin azide is a reagent for click chemistry labeling with biotin, a well-known affinity probe to streptavidin.Biotin-PEG4-amine
Tetraethylene glycol (PEG4) based bifunctional molecule containing biotin and amine functional group.Biotin-PEG4-NHS ester
PEG4-containing activated ester for simple and efficient biotin labeling of antibodies, proteins, and other primary amine-containing biomolecules.General properties
| Appearance: | white to beige powder |
| Molecular weight: | 491.61 |
| CAS number: | 721431-18-1 |
| Molecular formula: | C21H37N3O8S |
| IUPAC name: | 3-[2-[2-[2-[2-[5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoylamino]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid |
| Solubility: | good in water, DMSO, DMF |
| Quality control: | NMR 1H and HPLC-MS (95+%) |
| Storage conditions: | 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. |
| MSDS: | Download |
| Product specifications |
Product is offered and sold for research purposes only. Product is not tested for safety and efficacy in food, drug, medical device, cosmetic, no express or implied authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, for humans or animals or for commercial purposes.
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