Protein Modification Reagents
Medchemexpress LLC Biotin-PEG4-amide-C6-azide | 1006592-62-6 | MFCD30478293 | 99.1% | C27H49N7O7S | 10MG
Biotin-PEG4-amide-C6-azide is a biotinylated PEG4 amide linker terminating in an azide group, formulated as a high-purity research reagent for click chemistry and bioconjugation. It is suitable for linker assembly, affinity capture, and labeling workflows, and is soluble in DMSO and common co-solvent systems.
- High purity suitable for analytical and preparative applications.
- Terminal azide enables copper-catalyzed azide-alkyne cycloaddition for efficient conjugation.
- PEG4 spacer provides flexibility and improved aqueous solubility.
- Soluble in DMSO and compatible with typical in vivo co-solvent formulations.
- Well suited for affinity capture, labeling, and linker assembly workflows.
Worthington Biochemical Corporation WORTHINGTON BIOCHEMICAL CORPORATION
NC3928492 COLLAGENASE TYPE IV
Medchemexpress LLC Cyclooct-4-en-1-yl (2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethyl)carbamate | 1800507-93-0 | 95.0% | C17H32N2O5 | 10MG
TCO-PEG3-amine is a trans-cyclooctene (TCO)-functionalized PEG3 linker terminating in a primary amine, designed for bioconjugation and linker assembly in targeted degrader and chemical biology workflows. It combines a hydrophilic PEG spacer with a fast-reacting TCO handle for bioorthogonal labeling and a free amine for conventional coupling chemistries.
- Provides a trans-cyclooctene handle for rapid bioorthogonal click reactions.
- Contains a PEG3 spacer to improve solubility and reduce steric hindrance.
- Features a terminal primary amine for amide bond formation and conjugation.
- Suitable for PROTAC linker assembly, bioconjugation, and labeling applications.
- Offered as a high-purity research reagent with defined molecular properties.
STA PHARMACEUTICAL US LLC Fmoc-NH-PEG20-CH2CH2COOH | 100 g | CAS 1952360-93-8 | MDL MFCD21363316
Fmoc-NH-PEG20-CH2CH2COOH is a Amino Acid reagent (Subcategory: PEG AA) sold by WuXi TIDES. Offered in 100 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 1952360-93-8
- MDL: MFCD21363316
- InChIKey: YIKBHNBKAGGRHQ-UHFFFAOYSA-N
- Molecular Weight: 1192.397
- Molecular Formula: C58H97NO24
- Purity: ≥95%
- Container Type: 500 mL HDPE
- Pack Size: 100 g
- Net Weight: 100 g
- Gross Weight: 160.5 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: 1-(9H-fluoren-9-yl)-3-oxo-2,7,10,13,16,19,22,25,28,31,34,37,40,43,46,49,52,55,58,61,64-henicosaoxa-4-azaheptahexacontan-67-oic acid
- SMILES: O=C(CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(OCC1C2=C(C=CC=C2)C3=C1C=CC=C3)=O)O
eMolecules 1835759-82-4 | t-Boc-Aminooxy-PEG3-acid | Broadpharm | MFCD29052175 | 337.369 | C14H27NO8 | 97.000 | CC(C)(C)OC(=O)NOCCOCCOCCOCCC(O)=O | 100mg | 296213224
t-Boc-Aminooxy-PEG3-acid | Broadpharm | 1835759-82-4 | MFCD29052175 | 337.369 | C14H27NO8 | 97.000 | CC(C)(C)OC(=O)NOCCOCCOCCOCCC(O)=O | 100mg | 296213224
Medchemexpress LLC Biotin-PEG11-SH | 1650579-23-9 | 98.0% | C34H65N3O13S2 | 10MG
BIOTIN-PEG11-SH is a thiol-reactive biotinylation reagent featuring an 11-unit polyethylene glycol spacer and a terminal thiol (-SH). Provided as a solid with typical purity of 98%, it enables efficient biotin labeling of proteins and other biomolecules via thiol chemistry while improving solubility and reducing steric hindrance.
- Enables biotin labeling via thiol-reactive chemistry.
- Reduces steric hindrance with an 11-unit PEG spacer.
- Improves aqueous solubility of labeled biomolecules.
- Suitable for protein conjugation and affinity capture workflows.
- Provided as a stable solid with high purity for consistent results.
Avanti Polar Lipids DSPE-PEG 2000 MALEIMIDE, Powder, White, 10 mg
DSPE-PEG(2000) Maleimide is a highly purified, functionalized polyethylene glycol (PEG) lipid designed for advanced research applications in targeted drug delivery. This lipid enables precise conjugation of bioactive molecules to nanoparticle systems, ensuring reliable results in therapies for genetic disorders, cancer, and neurological conditions. Its exceptional purity is confirmed through HNMR analysis, making it a preferred choice for researchers focused on enhancing the specificity and efficacy of drug delivery systems.
- Highly purified PEG lipid for advanced drug delivery
- Facilitates conjugation with thiol-containing bioactive molecules
- Verified structural integrity with no detectable maleimide ring opening
- Application in targeted therapies for genetic disorders and cancer
- Stored at -20°C and shipped with dry ice for optimal stability
- Purity greater than 99% verified by TLC
Medchemexpress LLC Azide-PEG-azide | 00-00-0 | 95.0% | 10MG
Azide-PEG-azide (MW 10000) is a bifunctional polyethylene glycol (PEG) linker with azide groups at both termini. It is designed for click chemistry conjugation and linker construction in chemical biology and medicinal chemistry, providing spacer length and solubility advantages for bioconjugation and PROTAC design.
- High average molecular weight suitable for spacing and solubility optimization.
- Azide termini enable copper-catalyzed azide-alkyne cycloaddition (click chemistry).
- Good purity for research applications, supporting reproducible conjugation.
- Available in small-scale and bulk quantities for screening and scale-up.
- Stable under recommended storage, facilitating reliable long-term use.
![eMolecules 1257063-35-6 | N3-PEG4-CH2CH2COOH | Acrotein ChemBio Inc. | MFCD12406155 | 291.304 | C11H21N3O6 | 97.000 | OC(=O)CCOCCOCCOCCOCCN=[N+]=[N-] | 10g | 851113878](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000482689.jpg-250.jpg)
eMolecules 1257063-35-6 | N3-PEG4-CH2CH2COOH | Acrotein ChemBio Inc. | MFCD12406155 | 291.304 | C11H21N3O6 | 97.000 | OC(=O)CCOCCOCCOCCOCCN=[N+]=[N-] | 10g | 851113878
N3-PEG4-CH2CH2COOH | Acrotein ChemBio Inc. | 1257063-35-6 | MFCD12406155 | 291.304 | C11H21N3O6 | 97.000 | OC(=O)CCOCCOCCOCCOCCN=[N+]=[N-] | 10g | 851113878