Protein Modification Reagents
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%
eMolecules Amino-PEG36-t-butyl ester | 872340-65-3 | MFCD21363263 | 1g
Broadpharm | Amino-PEG36-t-butyl ester | 1g | 296213789 | BP-21921 | 95.000 | 872340-65-3 | MFCD21363263 | 1731.110 | C79H159NO38
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eMolecules Propargyl-PEG5-OSu | 1393330-40-9 | 1G | Purity: 98%
Broadpharm | Propargyl-PEG5-OSu | 1G | 1393330-40-9 | MFCD13189136 | MW:389.38
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eMolecules Propargyl-PEG5-NHS ester | 1393330-40-9 | 100MG | Purity: 98%
Broadpharm | Propargyl-PEG5-NHS ester | 100MG | 1393330-40-9 | MFCD13189219 | MW:389.38
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eMolecules Tos-PEG3-CH2CO2tBu | Broadpharm | 882518-89-0 | MFCD27977515 | 374.450 | C17H26O7S | 0.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCC(=O)OC(C)(C)C | 250mg | 229582215
Tos-PEG3-CH2CO2tBu | Broadpharm | 882518-89-0 | MFCD27977515 | 374.450 | C17H26O7S | 0.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCC(=O)OC(C)(C)C | 250mg | 229582215
eMolecules DBCO-C2-alcohol | 1839049-33-0 | | 250mg
Broadpharm | DBCO-C2-alcohol | 250mg | 550804611 | BP-24380 | 98.000 | 1839049-33-0 | | 348.402 | C21H20N2O3
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Formumax Scientific Inc DOXOVES- PEGYLATED LIPOSOMAL
Doxoves® - PEGylated Liposomal Doxorubicin HCl (2.0mL, 2.0mg/mL)Doxorubicin HCl is loaded into PEGylated liposomes composed of HSPC/CHOL/mPEG2000-DSPE (56.2:38.5:5.3 mol/mol) with ammonium gradient by the active loading approach. It is comparable to the commercial product DOXIL®. The liposomes are prepared to very high quality with consistent lot-lot characteristics. Narrow particle size distribution and high drug encapsulation efficiency. Note the high drug concentration (4mg/mL compared to 2 mg/mL for DOXIL®) allows the researchers to perform experiments at higher concentration/doses.Plain control liposomes for this product: F30204B-C2-2 (please inquire)Product For Research only and NOT for Human Use
eMolecules Bromoacetamido-PEG2-Boc-amine | 182244-33-3 | MFCD28142467 | 1g
Broadpharm | Bromoacetamido-PEG2-Boc-amine | 1g | 296213749 | BP-22338 | 98.000 | 182244-33-3 | MFCD28142467 | 369.256 | C13H25BrN2O5
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Medchemexpress LLC Cholesterol-PEG-MAL | 95.1% | 2000 (average) | 100 MG
Cholesterol-PEG-MAL (MW 2000) is a cholesterol-terminated polyethylene glycol bearing a terminal maleimide group. It serves as a pegylated lipid for liposome and nanoparticle preparation, enabling membrane anchoring and covalent conjugation to thiol-containing molecules. Supplied as a light yellow solid, it is soluble in DMSO and intended for research use.
- enables thiol-specific covalent conjugation via maleimide chemistry.
- provides a hydrophobic anchor for stable membrane insertion.
- average molecular weight 2000 for predictable spacer length.
- high purity suitable for research applications.
- soluble in DMSO at high concentration with sonication.
- stable when stored frozen as a powder.
Medchemexpress LLC NH2-PEG4-CH2CH2COOH | 663921-15-1 | 99.9% | 265.30 g/mol | C11H23NO6 | 500 MG
NH2-PEG4-CH2CH2COOH is a cleavable four-unit polyethylene glycol (PEG4) linker with terminal amino and carboxylic acid functional groups used in the synthesis of antibody-drug conjugates (ADCs) and PROTACs. The material is supplied as a solid with high purity and shows good solubility in DMSO.
- Cleavable PEG4 linker with terminal amino and carboxyl groups
- Purity 99.9%
- CAS number 663921-15-1
- Molecular weight 265.30 g/mol
- Solubility: DMSO (10 mg/mL with warming)
- Pack size: 500 MG
eMolecules N-(Azido-PEG3)-N-Boc-PEG4-NHS ester | 2112731-96-9 | MFCD30723220 | 500mg
Broadpharm | N-(Azido-PEG3)-N-Boc-PEG4-NHS ester | 500mg | 343283657 | BP-23586 | 98.000 | 2112731-96-9 | MFCD30723220 | 663.722 | C28H49N5O13
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eMolecules 17-(Amino-PEG6-ethylcarbamoyl)heptadecanoic acid | | | 500mg
Broadpharm | 17-(Amino-PEG6-ethylcarbamoyl)heptadecanoic acid | 500mg | 550804614 | BP-24390 | | | | 620.869 | C32H64N2O9
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Medchemexpress LLC Amino-PEG4-CH2COOH | 195071-49-9 | >=98.0% | 251.28 g/mol | C10H21NO6 | 100 MG
Amino-PEG4-CH2COOH is a PEG-based bifunctional linker supplied as a purified solid for use in synthetic chemistry. It provides an amino terminus and a terminal carboxylic acid for conjugation and spacer functionality in bifunctional molecules such as PROTACs and antibody-drug conjugates.
- Bifunctional linker with amino and carboxylic acid termini.
- Four-unit polyethylene glycol (PEG4) spacer for flexible linkage.
- High purity suitable for synthesis and research use.
- Low molecular weight and defined formula for analytical consistency.
- Available in small-scale research quantities for lab-scale synthesis.
Medchemexpress LLC 5,8,11-trioxa-2-azatetradecanedioic acid, 1-(4-cycloocten-1-yl) ester | 2141981-86-2 | ≥98.0% | 373.44 g/mol | C18H31NO7 | 5 MG
TCO-PEG3-acid is a trans-cyclooctene-functionalized PEG3 carboxylic acid used as a click-chemistry reagent for rapid bioorthogonal conjugation. The TCO moiety undergoes inverse-electron-demand Diels-Alder (iEDDA) reactions with tetrazine derivatives, enabling fast and selective labeling or linker assembly in chemical biology and bioconjugation workflows.
- Provides rapid, bioorthogonal iEDDA conjugation with tetrazine partners.
- Includes a PEG3 spacer to improve solubility and reduce steric hindrance.
- Terminal carboxylic acid enables standard coupling chemistries.
- High solubility in DMSO; ultrasonic assistance may aid dissolution.
- Stable under recommended storage conditions (for example, -20°C for extended storage).
- Suitable for labeling, linker synthesis, and bioconjugation applications.