Protein Modification Reagents
eMolecules Gly-PEG3-amine, TFA salt | 2110448-97-8 | | 250mg
Broadpharm | Gly-PEG3-amine, TFA salt | 250mg | 550804396 | BP-23749 | 98.000 | 2110448-97-8 | | 277.365 | C12H27N3O4
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Medchemexpress LLC Cholesterol-PEG 600 | 69068-97-9 | <1% | 1055.60 g/mol | C68H110O8 | 250 MG
Cholesterol-PEG 600 is a cholesterol-polyethylene glycol conjugate supplied for research use, provided as an off-white to light yellow oil. It is designed to introduce cholesterol moieties into membranes or to increase water solubility of lipid-modified constructs for biochemical and formulation studies.
- Cholesterol-PEG conjugate for membrane anchoring and formulation.
- Soluble in water (~60 mg/mL) with ultrasonic and warming.
- Appearance: off-white to light yellow oil.
- Storage: store pure material at -20°C; in solvent, -80°C for long term; aliquot to avoid freeze-thaw.
- Certificate of analysis shows total cholesterol ~20.4% and free cholesterol <1%.
- Available in multiple pack sizes from milligram to gram quantities.
eMolecules N-Boc-PEG36-alcohol | | MFCD29052163 | 1g
Broadpharm | N-Boc-PEG36-alcohol | 1g | 296213186 | BP-22981 | 96.000 | | MFCD29052163 | 1703.056 | C77H155NO38
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eMolecules N-(Mal-PEG6)-N-bis(PEG3-amine) TFA salt | 2055040-99-6 | MFCD29918257 | 250mg
Broadpharm | N-(Mal-PEG6)-N-bis(PEG3-amine) TFA salt | 250mg | 303671177 | BP-23174 | 98.000 | 2055040-99-6 | MFCD29918257 | 854.005 | C38H71N5O16
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eMolecules Bromoacetamido-PEG8-t-butyl ester | 2055041-16-0 | MFCD29918248 | 500mg
Broadpharm | Bromoacetamido-PEG8-t-butyl ester | 500mg | 550804297 | BP-23183 | 98.000 | 2055041-16-0 | MFCD29918248 | 618.559 | C25H48BrNO11
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eMolecules Aminooxy-PEG3-bromide | 1895922-73-2 | MFCD29764339 | 1g
Broadpharm | Aminooxy-PEG3-bromide | 1g | 311074478 | BP-23143 | 98.000 | 1895922-73-2 | MFCD29764339 | 272.139 | C8H18BrNO4
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eMolecules N-(azide-PEG3)-N'-(Ac-PEG3)-Cy7 | 2107273-00-5 | MFCD29079412 | 10mg
Broadpharm | N-(azide-PEG3)-N'-(Ac-PEG3)-Cy7 | 10mg | 550804282 | BP-23015 | 97.000 | 2107273-00-5 | MFCD29079412 | 792.420 | C43H58ClN5O7
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eMolecules N-(Hydroxy-PEG3)-N-bis(PEG4-t-butyl ester) | 2112734-70-8 | MFCD30730366 | 500mg
Broadpharm | N-(Hydroxy-PEG3)-N-bis(PEG4-t-butyl ester) | 500mg | 347153824 | BP-23630 | 98.000 | 2112734-70-8 | MFCD30730366 | 802.009 | C38H75NO16
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eMolecules t-Boc-Aminooxy-PEG3-amine | 1235514-18-7 | MFCD24471202 | 500mg
Broadpharm | t-Boc-Aminooxy-PEG3-amine | 500mg | 303671296 | BP-23127 | 98.000 | 1235514-18-7 | MFCD24471202 | 308.375 | C13H28N2O6
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Nanocs Vitamin B12 PEG Biotin, 5000 Da, 5 mg
Vitamin B12 PEG Biotin is one of Nanocs bioactive PEG derivatives that can be used for bioassay development. Vitamin B12, also known as cobalamin or cyanocobalamin, is a water soluble vitamin that is involved in the metabolism of cells in human body. Product Specifications:Form: Solid powderColor: RedSolubility: Soluble in waterFunctional ligand: biotinBinding target: Avidin, streptavidin or neutravidinApplications: Bioassay development
Medchemexpress LLC Dbco-nhco-peg4-nh-boc | 1255942-12-1 | 623.74 g·mol⁻1 | C34H45N3O8 | 100 MG
DBCO-NHCO-PEG4-NH-Boc is a DBCO-functionalized PEG4 linker containing a Boc-protected amine used for copper-free click chemistry, PROTAC and ADC linker synthesis, and general bioconjugation.
- Enables strain-promoted alkyne-azide cycloaddition (SPAAC) for copper-free click reactions.
- PEG4 spacer improves solubility and provides flexible linkage.
- Boc-protected amine allows orthogonal deprotection and downstream conjugation.
- Suitable for PROTAC and ADC synthesis and other bioconjugation workflows.
- Refer to the product datasheet for storage, handling, and lot-specific purity information.
Medchemexpress LLC Mal-amido-PEG4-NHS ester | 756525-99-2 | MFCD11041113 | 99.2% | 513.50 | C22H31N3O11 | 1 G
Mal-amido-PEG4-NHS ester is a PEG-based bifunctional linker bearing a maleimide and an N-hydroxysuccinimide (NHS) ester. It is designed for bioconjugation and PROTAC synthesis to connect thiol- and amine-containing ligands while providing a flexible, hydrophilic spacer that can improve solubility and linker reach.
- Bifunctional: maleimide for thiol coupling and NHS ester for amine coupling.
- PEG4 spacer increases hydrophilicity and solubility in aqueous media.
- High purity suitable for research and synthetic applications.
- Available in multiple pack sizes to support small- and large-scale work.
- Soluble in DMSO at high concentrations; ultrasonic treatment may aid dissolution.
- Store frozen for long-term stability; follow solvent storage guidance for solutions.
STA PHARMACEUTICAL US LLC Fmoc-N-amido-PEG-9-COOH | 100 g | CAS 1191064-81-9 | MDL MFCD28385470
Fmoc-N-amido-PEG-9-COOH 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: 1191064-81-9
- MDL: MFCD28385470
- InChIKey: NEESTRVILHNOJT-UHFFFAOYSA-N
- Molecular Weight: 707.814
- Molecular Formula: C36H53NO13
- 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-decaoxa-4-azatetratriacontan-34-oic acid
- SMILES: O=C(CCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)O