Protein Modification Reagents
Broadpharm Bromoacetamido-PEG2-azide, 500mg
Bromoacetamido-PEG2-azide is a heterobifunctional PEG linker containing a reactive bromoacetamido and a terminal azide.The bromoacetamidogroup is a very reactive group for nucleophilic substitution. The azide group can react with alkyne, BCN, DBCO via Click Chemistry. Please contact us for GMP-grade inquiries.
![eMolecules Broadpharm / APN-C3-PEG4-alkyne / 5mg / 374905429 / BP-23869 / 98.000 / 2183440-36-8 / [null] / 469.538 / C25H31N3O6](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502471121.JPG-250.jpg)
eMolecules Broadpharm / APN-C3-PEG4-alkyne / 5mg / 374905429 / BP-23869 / 98.000 / 2183440-36-8 / [null] / 469.538 / C25H31N3O6
Broadpharm / APN-C3-PEG4-alkyne / 5mg / 374905429 / BP-23869 / 98.000 / 2183440-36-8 / [null] / 469.538 / C25H31N3O6
Medchemexpress LLC m-PEG15-amine | 2745717-94-4 | 99.9% | 691.85 | 25 MG
m-PEG15-amine (CAS No.: 2745717-94-4) is a high-purity PEG-based PROTAC linker with a molecular formula of C31H65NO15 and a molecular weight of 691.85.
- High purity of 99.9%
- Appears as a colorless to light yellow oil
- Store at -20°C under nitrogen
- When in solvent, store at -80°C for 6 months or -20°C for 1 month under nitrogen
Medchemexpress LLC DSPE-PEG-FITC | 1000788-53-3 | 10,000 (average) | 50 MG
DSPE-PEG-FITC (MW 10000) is a fluorescent lipid-PEG conjugate composed of a DSPE lipid anchor linked to a polyethylene glycol (PEG) chain terminated with fluorescein isothiocyanate (FITC). Supplied as a yellow-orange solid, it is used to introduce fluorescent labeling and PEGylation into liposomes, lipid nanoparticles, and other lipid-based formulations for imaging, tracking, and formulation development.
- Provides fluorescent labeling for liposomes and lipid nanoparticles.
- Adds PEGylation to improve circulation and reduce nonspecific interactions.
- Suitable for in vitro and in vivo imaging and tracking applications.
- Available in multiple package sizes including 50 mg.
- Yellow to orange solid; soluble in DMSO with sonication and warming.
- Batch-specific certificate of analysis available for analytical data.
eMolecules FMOC-NH-PEG9-CH2CH2COOH | 1191064-81-9 | MFCD28385470 | 1g
AstaTech | FMOC-NH-PEG9-CH2CH2COOH | 1g | 448263062 | P50016 | 95.000 | 1191064-81-9 | MFCD28385470 | 707.814 | C36H53NO13
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eMolecules (S, R, S)-AHPC-PEG4-NHS ester | | | 500mg
Broadpharm | (S, R, S)-AHPC-PEG4-NHS ester | 500mg | 533795547 | BP-25120 | 98.000 | | | 803.930 | C38H53N5O12S
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STA PHARMACEUTICAL US LLC Fmoc-N-amido-PEG-9-COOH | 25 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 25 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: 125 mL HDPE
- Pack Size: 25 g
- Net Weight: 25 g
- Gross Weight: 54.3 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
Medchemexpress LLC Cl-C6-PEG4-C3-COOH | 2127391-58-4 | MFCD34469791 | 99.7% | 382.92 | C18H35ClO6 | 5 MG
Cl-C6-PEG4-C3-COOH is a bifunctional PROTAC linker that incorporates a chloroalkane handle for the synthesis of HaloPROTACs and other chloroalkane-containing bifunctional molecules. It is supplied as a high-purity liquid and is intended as a synthetic building block for chemical biology and drug discovery research.
- Bifunctional PROTAC linker for constructing chloroalkane-containing PROTACs.
- Molecular weight 382.92.
- CAS number 2127391-58-4.
- Purity 99.65%.
- Physical form: colorless to light yellow liquid; density 1.072 g/cm3.
- Soluble in DMSO at 100 mg/mL; ultrasonic assistance recommended.
- Storage: store at 4°C, protect from light; in solvent store -80°C (6 months) or -20°C (1 month).
Medchemexpress LLC Benzyl-PEG5-Ots 1g
Benzyl-PEG5-Ots is a PEG-based PROTAC linker can be used in the synthesis of PROTACs
Avanti Polar Lipids 18:0 PEG2000 PE Chloroform | 474922-77-5 | 200mg
18:0 PEG2000 PE Chloroform | Purity: 99% | 474922-77-5 | 200mg
Medchemexpress LLC Biotin-PEG2-acid | 1365655-89-5 | MFCD22056305 | ≥97.0% | 403.49 g·mol⁻¹ | C17H29N3O6S | 250 MG
Biotin-PEG2-acid is a biotinylated polyethylene glycol linker with a terminal carboxylic acid, used as a non-cleavable ADC and PROTAC linker for bioconjugation, affinity labeling, and linker synthesis. It is supplied in small laboratory pack sizes for conjugation workflows.
- Biotinylated PEG linker with a terminal carboxylic acid for conjugation.
- Non-cleavable two-unit PEG spacer suited for ADC and PROTAC syntheses.
- High purity (≥97.0%) for reliable conjugation performance.
- Molecular weight 403.49 g·mol⁻¹; formula C17H29N3O6S.
- Available in small-scale quantities such as 250 MG.
- Store protected from light under argon at -20°C; in solvent store at -80°C for long-term.
eMolecules endo-BCN-PEG3-amine | | | 500mg
Broadpharm | endo-BCN-PEG3-amine | 500mg | 528284354 | BP-24510 | 98.000 | | | 368.474 | C19H32N2O5
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Medchemexpress LLC HY-113697 10mg Medchemexpress, PF-05231023 CAS:1037589-69-7 Purity:>98%
Medchemexpress, HY-113697 10mg PF-05231023 CAS:1037589-69-7 PF-05231023, a long-acting fibroblast growth factor 21 (FGF21) analog, is a FGF21-receptor agonist, suitable for development as a potential treatment for T2DM[5]. 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.
Medchemexpress LLC N3-PEG2-C2-NHS ester | 1312309-64-0 | MFCD20926376 | 97.0% | 300.27 g/mol | C11H16N4O6 | 100 MG
N3-PEG2-C2-NHS ester is an azide-functional PEG2 linker supplied as an N-hydroxysuccinimide (NHS) ester for amine coupling and click-chemistry bioconjugation. It is used as a reagent in antibody-drug conjugate (ADC) synthesis and other bioconjugation workflows.
- Azide functional group enables copper-catalyzed and strain-promoted click chemistry.
- NHS ester allows rapid conjugation to primary amines.
- Peg2 spacer improves aqueous solubility and reduces steric hindrance.
- Non-cleavable two-unit linker suitable for stable bioconjugates.
- Supplied in small pack sizes for research use, suitable for analytical and preparative labeling.
Medchemexpress LLC 3,6,9,12-tetraoxatridecan-1-amine | 85030-56-4 | MFCD11041099 | 98.8% | 207.27 | C9H21NO4 | 250 MG
m-PEG4-Amine is a polyethylene glycol (PEG) based bifunctional linker bearing a terminal primary amine. It is used as a short, flexible spacer in the synthesis of PROTACs and as a cleavable linker for antibody-drug conjugates, facilitating amine-based conjugation reactions.
- Provides a PEG4 spacer (~4 ethylene glycol units)
- Terminal primary amine for amide or carbamate conjugation
- High purity (98.8%) suitable for research use
- Molecular weight 207.27 g/mol
- Typically supplied as a solid; common pack size 250 MG