Protein Modification Reagents
Medchemexpress LLC Biotin-PEG2-C6-azide 100mg | 1011268-29-3 | 513.65 g/mol | C22H39N7O5S | 100 MG
Biotin-PEG2-C6-azide is a biotinylated polyethylene glycol linker bearing a terminal azide functional group used for bioconjugation, click chemistry, and PROTAC linker synthesis.
- Provides a terminal azide for copper-catalyzed azide-alkyne cycloaddition.
- Contains a PEG2 spacer to improve solubility and reduce steric hindrance.
- Biotin tag enables streptavidin-based capture and detection workflows.
- Molecular formula C22H39N7O5S; molecular weight ~513.65 g/mol.
- CAS number 1011268-29-3.
- Purity typically ≥98%; appearance white solid; store at -20 °C.
- Available in small-scale research quantities (e.g., 2 mg, 10 mg, 100 mg), packaging varies by supplier.
Molecular Dimensions 50% PEG SMEAR BROAD 250ML
PEG is an effective crystallization agent due to its protein-protein interaction promoting properties. The BCS Screen overcomes the impracticality of sampling all PEG varieties that has led to a few variants predominating in the most common screens. PEG Smears are designed primarily for efficient screening of chemical space. It is generally thought that well-defined, single PEG species produce the best diffracting crystals. Thus, optimization might involve identifying the single PEG compound that produces the best crystal for structural studies. MOLECULAR DIMENSIONS INC mfg# MD2-250-261
CONJU PROBE LLC DBCO-PEG4-Amine | 1255942-08-5 | MFCD22380748 | 100 mg
DBCO-PEG4-Amine | Purity: >95% | Mol Wt: 523.62 | 1255942-08-5 | MFCD22380748 | 100 mg
eMolecules Broadpharm / Azido-PEG36-alcohol / 100mg / 229582571 / BP-21927 / 97.000 / 73342-16-2 / MFCD21363269 / 1628.937 / C72H145N3O36
Broadpharm / Azido-PEG36-alcohol / 100mg / 229582571 / BP-21927 / 97.000 / 73342-16-2 / MFCD21363269 / 1628.937 / C72H145N3O36
eMolecules Broadpharm / SPDP-PEG-24-NHS ester / 100mg / 229582551 / BP-21937 / 95.000 / / MFCD13185007 / 1440.710 / C63H113N3O29S2
Broadpharm / SPDP-PEG-24-NHS ester / 100mg / 229582551 / BP-21937 / 95.000 / / MFCD13185007 / 1440.710 / C63H113N3O29S2
Medchemexpress LLC PTAD-PEG8-alkyne | 684.73 | 5 MG
PTAD-PEG8-alkyne is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs).
- Used as a cleavable ADC linker
- Target: ADC linker
- Pathway: Antibody-drug conjugate/ADC related
- Storage: Pure form: -20°C for 3 years
- Storage: In solvent: -80°C for 6 months, -20°C for 1 month
Sigma Aldrich Fine Chemicals Biosciences Endoproteinase Asp-N Sequencing Grade, 3 x 2 ug
Use Endoproteinase Asp-N Sequencing Grade for protein structure analysis and sequence analysis.
eMolecules Pomalidomide-PEG3-NH-Boc | | | 500mg
Broadpharm | Pomalidomide-PEG3-NH-Boc | 500mg | 533795541 | BP-25117 | 98.000 | | | 548.593 | C26H36N4O9
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Ambeed Fmoc-NH-PEG12-CH2CH2COOH | 1952360-91-6 | 840.0 g/mol |
Fmoc-NH-PEG12-CH2CH2COOH | 1952360-91-6 | 840.0 g/mol |
eMolecules DBCO-PEG4-triethoxysilane | 2353410-02-1 | | 250mg
Broadpharm | DBCO-PEG4-triethoxysilane | 250mg | 550804542 | BP-24137 | 98.000 | 2353410-02-1 | | 755.981 | C39H57N3O10Si
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