Protein Modification Reagents
Medchemexpress LLC 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-(PEG2000) (ammonium salt) | 474922-26-4 | 99.96% | 2790.52 | (C2H4O)nC44H87N2O10P.NH3 | 5MG
DSPE-PEG(2000) Amine is an amine-terminated PEGylated phospholipid used to functionalize liposomes and lipid nanoparticles for surface conjugation and targeted delivery. The hydrophobic DSPE tail anchors the molecule in lipid bilayers, while the PEG2000 spacer provides steric stabilization and improved colloidal stability; the terminal primary amine enables covalent coupling to activated esters, dyes, linkers, or targeting ligands.
- Amine-terminated PEGylated phospholipid for surface functionalization.
- Hydrophobic tail anchors stably in lipid bilayers.
- Peg spacer provides steric stabilization and reduces aggregation.
- Terminal primary amine enables covalent coupling chemistries.
- Offered as an ammonium salt in powder and solution forms.
- High purity suitable for research use (supplier-stated ~99.96%).
- Store at -20°C; soluble in chloroform:methanol mixtures.
Selleck Chemical LLC (S.R.S)-AHPC-PEG4-NH2 hydrochloride S3502-5mg
(S R S)-AHPC-PEG4-NH2 hydrochloride (VH032-PEG4-NH2 hydrochloride VHL Ligand-Linker Conjugates 4 hydrochloride E3 ligase Ligand-Linker Conjugates 7) is a PROTAC E3 ligase ligand-linker conjugate that incorporates the (S R S)-AHPC based VHL ligand and 4-unit PEG linker
[C@H](O)CS | 50g | 398006754](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000159305.jpg-250.jpg)
eMolecules 3483-12-3 | (+/-) Dithiothreitol molecular biology grade | Apollo Scientific US - Building Blocks154.240 | C4H10O2S2 | 99.000 | O[C@H](CS)[C@H](O)CS | 50g | 398006754
(+/-) Dithiothreitol molecular biology grade | Apollo Scientific US - Building Blocks | 3483-12-3154.240 | C4H10O2S2 | 99.000 | O[C@H](CS)[C@H](O)CS | 50g | 398006754
Medchemexpress LLC N3-PEG4-C2-NHS ester | 944251-24-5 | MFCD13184948 | >90% | 388.37 g/mol | C15H24N4O8 | 50 MG
N3-PEG4-C2-NHS ester is an azide-functionalized, non-cleavable polyethylene glycol (PEG) linker containing an N-hydroxysuccinimide (NHS) ester for amine coupling and an azide (N3) group for click chemistry applications such as antibody-drug conjugate (ADC) synthesis and bioconjugation.
- Azide-functionalized 4-unit PEG linker suitable for bioconjugation.
- N-hydroxysuccinimide (NHS) ester for efficient amine coupling.
- Compatible with copper-catalyzed and strain-promoted azide-alkyne cycloaddition.
- High solubility in DMSO; stock solutions commonly prepared per datasheet guidance.
- Storage recommendations: pure form -20°C up to 3 years; in solvent -80°C for 6 months or -20°C for 1 month.
Medchemexpress LLC Tetrazine-SS-PEG4-biotin | 99.4% | 824.05 Da | C35H53N9O8S3 | 5 MG
Tetrazine-SS-PEG4-Biotin is a cleavable PEG-based bioconjugation reagent containing a tetrazine reactive group and a biotin affinity tag for labeling and affinity workflows. It is designed for inverse electron-demand Diels-Alder (iEDDA) click reactions and can be used as an ADC linker or for general bioconjugation in research applications.
- Cleavable disulfide linker with four PEG units for improved solubility and cleavability.
- Tetrazine moiety enables rapid iEDDA click chemistry with trans-cyclooctene partners.
- Biotin tag supports affinity capture and detection workflows.
- High purity suitable for bioconjugation (99.4%).
- Storage stable when protected from light and stored under inert atmosphere at low temperatures.
eMolecules 24615-84-7 | 2-Carboxyethyl acrylate | Aladdin Scientific Corporation | MFCD00040709 | 144.126 | C6H8O4 | 90.000 | OC(=O)CCOC(=O)C=C | 25g | 845207849
2-Carboxyethyl acrylate | Aladdin Scientific Corporation | 24615-84-7 | MFCD00040709 | 144.126 | C6H8O4 | 90.000 | OC(=O)CCOC(=O)C=C | 25g | 845207849
STA PHARMACEUTICAL US LLC Fmoc-NH-PEG8-CH2COOH | 10 g | CAS 868594-52-9 | MDL MFCD27635163
Fmoc-NH-PEG8-CH2COOH is a Amino Acid reagent (Subcategory: PEG AA) sold by WuXi TIDES. Offered in 10 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 868594-52-9
- MDL: MFCD27635163
- InChIKey: JRLUSGRARXJCNA-UHFFFAOYSA-N
- Molecular Weight: 649.734
- Molecular Formula: C33H47NO12
- Purity: ≥95%
- Container Type: 60 mL HDPE
- Pack Size: 10 g
- Net Weight: 10 g
- Gross Weight: 25 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-nonaoxa-4-azatriacontan-30-oic acid
- SMILES: O=C(COCCOCCOCCOCCOCCOCCOCCOCCNC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)O
