Protein Modification Reagents
STA PHARMACEUTICAL US LLC Fmoc-NH-PEG5-CH2COOH | 5 g | CAS 635287-26-2 | InChIKey LNIFRTLAPAPKAG-UHFFFAOYSA-N
Fmoc-NH-PEG5-CH2COOH is a Amino Acid reagent (Subcategory: PEG AA) sold by WuXi TIDES. Offered in 5 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 635287-26-2
- MDL: No data
- InChIKey: LNIFRTLAPAPKAG-UHFFFAOYSA-N
- Molecular Weight: 517.575
- Molecular Formula: C27H35NO9
- Purity: ≥95%
- Container Type: 30 mL HDPE
- Pack Size: 5 g
- Net Weight: 5 g
- Gross Weight: 16.5 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: 1-(9H-fluoren-9-yl)-3-oxo-2,7,10,13,16,19-hexaoxa-4-azahenicosan-21-oic acid
- SMILES: O=C(COCCOCCOCCOCCOCCNC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)O
![Medchemexpress LLC Poly(oxy-1,2-ethanediyl), α-[(9R)-6-hydroxy-6-oxido-1,12-dioxo-9-[(1-oxooctadecyl)oxy]-5,7,11-trioxa | 474922-26-4 | 99.5% | 1000 g/mol (average) | (C2H4O)nN2O10P·NH3 | 100 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000281149.png-250.jpg)
Medchemexpress LLC Poly(oxy-1,2-ethanediyl), α-[(9R)-6-hydroxy-6-oxido-1,12-dioxo-9-[(1-oxooctadecyl)oxy]-5,7,11-trioxa | 474922-26-4 | 99.5% | 1000 g/mol (average) | (C2H4O)nN2O10P·NH3 | 100 MG
DSPE-PEG-Amine is an amine-terminated polyethylene glycol-conjugated phospholipid used to functionalize liposomes and nanoparticles for targeted delivery and surface bioconjugation. The terminal primary amine enables covalent coupling to a wide range of crosslinkers, allowing attachment of ligands, dyes, or polymers to control surface chemistry and improve in vivo behavior.
- Amine-terminated PEG-lipid enabling covalent bioconjugation.
- Average molecular weight ≈ 1000 g/mol for short PEG spacer.
- High purity (≈99.5%) suitable for research applications.
- Solid, white to off-white form with stable cold storage.
- Facilitates liposome and nanoparticle surface functionalization.
- Improves circulation and steric stabilization when PEGylated.
Medchemexpress LLC t-Boc-Aminooxy-PEG4-NHS ester | 2401831-99-8 | 99.9% | C20H34N2O11 | 50 MG
t-Boc-Aminooxy-PEG4-NHS ester is a PEG-based PROTAC linker. It is used in the synthesis of PROTACs, which are molecules designed to exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins. This product is intended for research use only.
- PEG-based PROTAC linker
- Used in the synthesis of PROTACs
- Exploits the intracellular ubiquitin-proteasome system
- Selectively degrades target proteins
- For research use only
Medchemexpress LLC Dspe-peg-nhs | MFCD03098978 | 80.0% | 5000 (average) | 100 MG
DSPE-PEG-NHS (average molecular weight 5000) is a PEG-modified phospholipid bearing an N-hydroxysuccinimide (NHS) ester. It functions as an amphiphilic linker reagent for covalent attachment of primary amine-containing ligands to lipid surfaces, enabling targeted modification of liposomes and other nanoparticle systems used in drug delivery research.
- Amphiphilic PEG-lipid suitable for liposome and nanoparticle surface functionalization.
- NHS ester enables efficient covalent coupling to primary amines under mild conditions.
- Average molecular weight 5000 provides extended hydrophilicity and steric stabilization.
- Supplied as a powder, stable under recommended frozen storage for long-term use.
- Useful for preparing targeted delivery systems and conjugating biomolecules.
- Purity approximately 80.0% as provided by the manufacturer.
Medchemexpress LLC S-(2-carboxyethyl)-L-cysteine | 4033-46-9 | MFCD03424208 | 98.6% | 193.22 g·mol⁻1 | C6H11NO4S | 10 MG
S-(2-Carboxyethyl)-L-cysteine is an amino acid-derived research reagent provided as a solid for biochemical and pharmacological studies that require a cysteine derivative. The compound is characterized with analytical data to support research use and is offered in small quantities for laboratory experiments.
- High purity: 98.6%.
- Chemical formula: C6H11NO4S.
- Molecular weight: 193.22 g·mol⁻1.
- Physical form: solid; soluble in water at 5 mg/mL with ultrasonic assistance.
- Available sizes: includes 10 mg and 25 mg; larger sizes available by quote.
- Supporting documents: data sheet, COA, SDS, HNMR, RP-HPLC, MS.
Medchemexpress LLC HY-112496 100mg Medchemexpress, Cl-C6-PEG4-O-CH2COOH CAS:1799506-30-1 Purity:>98%
Medchemexpress, HY-112496 100mg Cl-C6-PEG4-O-CH2COOH CAS:1799506-30-1 Cl-C6-PEG4-O-CH2COOH (PROTAC Linker 4) is a PEG-based PROTAC linker can be used in the synthesis of chloroalkane-containing PROTACs (HaloPROTACs). Purity:>98% Medchemexpress has over 10000 novel life-science reagents, reference compounds, APIs and natural compounds for laboratory and scientific use. Other quantity can also be offered.
eMolecules 118591-57-4 | Ms-PEG3 | Broadpharm | MFCD22574807 | 184.210 | C5H12O5S | 98.000 | CS(=O)(=O)OCCOCCO | 1g | 137364363
Ms-PEG3 | Broadpharm | 118591-57-4 | MFCD22574807 | 184.210 | C5H12O5S | 98.000 | CS(=O)(=O)OCCOCCO | 1g | 137364363
![eMolecules 1415800-37-1 | Bromoacetamido-PEG5-azide | Broadpharm | MFCD22683281 | 427.296 | C14H27BrN4O6 | 0.000 | BrCC(=O)NCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 500mg | 200183271](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502202979.JPG-250.jpg)
eMolecules 1415800-37-1 | Bromoacetamido-PEG5-azide | Broadpharm | MFCD22683281 | 427.296 | C14H27BrN4O6 | 0.000 | BrCC(=O)NCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 500mg | 200183271
Bromoacetamido-PEG5-azide | Broadpharm | 1415800-37-1 | MFCD22683281 | 427.296 | C14H27BrN4O6 | 0.000 | BrCC(=O)NCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 500mg | 200183271
![eMolecules 940005-81-2 | Bromoacetamido-PEG3-azide | Broadpharm | MFCD22683302 | 339.190 | C10H19BrN4O4 | 0.000 | BrCC(=O)NCCOCCOCCOCCN=[N+]=[N-] | 1g | 200183383](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502202985.JPG-250.jpg)
eMolecules 940005-81-2 | Bromoacetamido-PEG3-azide | Broadpharm | MFCD22683302 | 339.190 | C10H19BrN4O4 | 0.000 | BrCC(=O)NCCOCCOCCOCCN=[N+]=[N-] | 1g | 200183383
Bromoacetamido-PEG3-azide | Broadpharm | 940005-81-2 | MFCD22683302 | 339.190 | C10H19BrN4O4 | 0.000 | BrCC(=O)NCCOCCOCCOCCN=[N+]=[N-] | 1g | 200183383
Medchemexpress LLC Dspe-peg-biotin | 385437-57-0 | 99.9% | 50 MG
Dspe-peg-biotin is a Peg-based PROTAC linker that can be used in the synthesis of PROTACs. PROTACs are compounds designed with two distinct ligands connected by a linker; one ligand is tailored to bind to an E3 ubiquitin ligase, while the other targets a specific protein. This mechanism enables PROTACs to exploit the intracellular ubiquitin-proteasome system for the selective degradation of target proteins.
- Peg-based PROTAC linker.
- Utilized in the synthesis of PROTACs.
- PROTACs are composed of two distinct ligands joined by a linker.
- One ligand specifically targets an E3 ubiquitin ligase.
- The other ligand binds to the protein intended for degradation.
- Operates by harnessing the intracellular ubiquitin-proteasome system.
- Facilitates the selective degradation of target proteins.
Medchemexpress LLC Methyltetrazine-PEG5-NHS ester | 1802907-92-1 | MFCD28122951 | 97.0% | C24H31N5O9 | 250 MG
Methyltetrazine-PEG5-NHS ester is a PEG-based PROTAC linker used in the synthesis of PROTACs. PROTACs contain two different ligands connected by a linker; one ligand binds to an E3 ubiquitin ligase, and the other to the target protein. This mechanism exploits the intracellular ubiquitin-proteasome system for selective degradation of target proteins. It is intended for research use only.
- PEG-based PROTAC linker
- Used in synthesis of PROTACs
- Exploits intracellular ubiquitin-proteasome system
- Selectively degrades target proteins
- Solid appearance, purple to purplish red color
- Solubility in DMSO: 100 mg/mL
- Powder storage: -20°C for 3 years
- For research use only
Medchemexpress LLC DBCO-PEG4-Desthiobiotin | 2032788-37-5 | 96.4% | C39H53N5O8 | 25 MG
DBCO-PEG4-Desthiobiotin is a PEG-based PROTAC linker used in the synthesis of PROTACs. It also functions as a click chemistry reagent, featuring a DBCO group that enables strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing azide groups. This product is intended for research use only.
- PEG-based PROTAC linker
- Used in PROTAC synthesis
- Click chemistry reagent
- Facilitates strain-promoted alkyne-azide cycloaddition (SPAAC)
- Reacts with azide groups
- For research use only
Medchemexpress LLC Dde Biotin-PEG4-DBCO | 1807512-43-1 | 96.17% | C47H61N5O9S | 100 MG
Dde Biotin-PEG4-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. It is also a click chemistry reagent, containing a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups. PROTACs consist of two different ligands connected by a linker; one for an E3 ubiquitin ligase and the other for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
- PEG-based PROTAC linker
- Used in the synthesis of PROTACs
- Click chemistry reagent
- Contains a DBCO group
- Enables strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules that have azide groups
- Utilizes the intracellular ubiquitin-proteasome system to selectively degrade target proteins
TARGETMOL CHEMICALS INC BIOTIN-PEG4-AZIDE 100MG
Also available in 25 mg 50 mg and bulk. Please contact Fisher for quotes. Biotin-PEG4-azide is a biotin-labeled PEG-based PROTAC linker that can be used in PROTAC synthesis. purity: 99%
Medchemexpress LLC N-DBCO-N-bis(PEG2-C2-acid) | 2110449-00-6 | 96.7% | C33H40N2O10 | 50 MG
N-DBCO-N-bis(PEG2-C2-acid) is a PEG-based PROTAC linker used in the synthesis of PROTACs. It also functions as a click chemistry reagent, containing a DBCO group that facilitates strain-promoted alkyne-azide cycloaddition (SPAAC) with azide-containing molecules. PROTACs are composed of two different ligands connected by a linker, enabling selective degradation of target proteins via the intracellular ubiquitin-proteasome system.
- PEG-based PROTAC linker
- Used in the synthesis of PROTACs
- Click chemistry reagent with a DBCO group
- Facilitates strain-promoted alkyne-azide cycloaddition (SPAAC)
- Enables selective degradation of target proteins