Protein Modification Reagents
eMolecules 16-(Amine-PEG4-ethylcarbamoyl)pentadecanoic-t-butyl ester | Broadpharm |560.817 | C30H60N2O7 | 95.000 | CC(C)(C)OC(=O)CCCCCCCCCCCCCCC(=O)NCCOCCOCCOCCOCCN | 100mg | 795361477
16-(Amine-PEG4-ethylcarbamoyl)pentadecanoic-t-butyl ester | Broadpharm |560.817 | C30H60N2O7 | 95.000 | CC(C)(C)OC(=O)CCCCCCCCCCCCCCC(=O)NCCOCCOCCOCCOCCN | 100mg | 795361477
eMolecules 2055042-60-7 | N-(Boc-PEG3)-N-bis(PEG2-alcohol) | Broadpharm | MFCD30182039 | 556.694 | C25H52N2O11 | 97.000 | CC(C)(C)OC(=O)NCCOCCOCCOCCN(CCOCCOCCO)CCOCCOCCO | 500mg | 309208953
N-(Boc-PEG3)-N-bis(PEG2-alcohol) | Broadpharm | 2055042-60-7 | MFCD30182039 | 556.694 | C25H52N2O11 | 97.000 | CC(C)(C)OC(=O)NCCOCCOCCOCCN(CCOCCOCCO)CCOCCOCCO | 500mg | 309208953
Medchemexpress LLC Cy3-peg-biotin | 95.0% | 2000 (average) | 10 MG
Cy3-PEG-biotin is a polyethylene glycol conjugate bearing a Cy3 fluorescent dye and a biotin affinity tag; it is designed for fluorescence labeling and capture of biomolecules via biotin-streptavidin interactions for microscopy, flow cytometry, and nucleic acid or protein labeling.
- Provides Cy3 fluorescence for detection (max emission ≈ 562-570 nm).
- Biotin tag enables high-affinity capture by streptavidin/avidin.
- PEG spacer (average MW 2000) improves solubility and reduces steric hindrance.
- Available in small laboratory quantities suitable for labeling workflows.
NCCOCCNC(=O)CCCCC(=O)N1Cc2ccccc2C#Cc2ccccc12)(OCC)OCC | 25mg | 627958419](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502480452.JPG-250.jpg)
eMolecules DBCO-PEG-Silane, MW 5,000 | Broadpharm |666.891 | C35H50N4O7Si | 0.000 | CCO[Si](CCCNC(=O)NCCOCCNC(=O)CCCCC(=O)N1Cc2ccccc2C#Cc2ccccc12)(OCC)OCC | 25mg | 627958419
DBCO-PEG-Silane, MW 5,000 | Broadpharm |666.891 | C35H50N4O7Si | 0.000 | CCO[Si](CCCNC(=O)NCCOCCNC(=O)CCCCC(=O)N1Cc2ccccc2C#Cc2ccccc12)(OCC)OCC | 25mg | 627958419
Medchemexpress LLC BODIPY FL alkyne | 1MG
BODIPY FL alkyne (BOD FL alkyne) is a green-fluorescent dye (Ex 503 nm Em 512 nm) a bright and photostable fluorophore which emits in fluorescein (FAM) channel BODIPY FL alkyne can be conjugated with a number of azide-containing molecules by copper-catalyzed Click Chemistry
Medchemexpress LLC Dope-peg-azide | 99.6% | 1000 (average) | 5 MG
DOPE-PEG-Azide (MW 1000) is a DOPE-based phospholipid functionalized with a polyethylene glycol (PEG) chain terminating in an azide group. The azide handle enables bioorthogonal click chemistry for conjugation and surface modification of liposomes, lipid nanoparticles, and other lipid-based formulations. The material is polydisperse with an average PEG molecular weight of 1000 and is supplied for research use.
- Provides azide functional group for copper-catalyzed or copper-free click chemistry.
- Average PEG molecular weight 1000 (polydisperse).
- High purity suitable for formulation and bioconjugation (purity listed as 99.62%).
- Suitable for liposome and lipid nanoparticle functionalization.
- Available in small pack sizes for screening and method development.
- Store at -20 °C in pure form.
eMolecules 1235514-18-7 | t-Boc-Aminooxy-PEG3-amine | Broadpharm | MFCD24471202 | 308.375 | C13H28N2O6 | 98.000 | CC(C)(C)OC(=O)NOCCOCCOCCOCCN | 500mg | 303671296
t-Boc-Aminooxy-PEG3-amine | Broadpharm | 1235514-18-7 | MFCD24471202 | 308.375 | C13H28N2O6 | 98.000 | CC(C)(C)OC(=O)NOCCOCCOCCOCCN | 500mg | 303671296
![eMolecules 642091-68-7 | t-Boc-N-Amido-PEG3-azide | Broadpharm | MFCD22056317 | 318.374 | C13H26N4O5 | 98.000 | CC(C)(C)OC(=O)NCCOCCOCCOCCN=[N+]=[N-] | 500mg | 112541417](https://assets.fishersci.com/TFS-Assets/CCG/product-images/NC1681017.jpg-250.jpg)
eMolecules 642091-68-7 | t-Boc-N-Amido-PEG3-azide | Broadpharm | MFCD22056317 | 318.374 | C13H26N4O5 | 98.000 | CC(C)(C)OC(=O)NCCOCCOCCOCCN=[N+]=[N-] | 500mg | 112541417
t-Boc-N-Amido-PEG3-azide | Broadpharm | 642091-68-7 | MFCD22056317 | 318.374 | C13H26N4O5 | 98.000 | CC(C)(C)OC(=O)NCCOCCOCCOCCN=[N+]=[N-] | 500mg | 112541417
Medchemexpress LLC Ald-Ph-amido-PEG4-C2-acid | 1309460-27-2 | 99.1% | 397.42 g/mol | C19H27NO8 | 500 MG
Ald-Ph-amido-PEG4-C2-acid is a noncleavable polyethylene glycol (PEG4) linker designed for use in antibody-drug conjugates (ADCs). It provides a stable, noncleavable connection between an antibody and a cytotoxic payload for research applications. The compound has molecular formula C19H27NO8, molecular weight 397.42 g/mol, and high purity suitable for conjugation workflows.
- Noncleavable PEG4 linker for ADC development.
- High purity, 99.1%.
- CAS number 1309460-27-2 for unambiguous identification.
- Supplied as 500 MG for laboratory-scale conjugation.
- Intended for research use only; not for human therapeutic use.
Medchemexpress LLC Propargyl-PEG4-GGFG-DXd | 2762518-94-3 | 100.0% | 1083.12 g/mol | C54H63FN8O15 | 5 MG
Propargyl-PEG4-GGFG-DXd is a drug-linker conjugate for antibody-drug conjugate (ADC) research that couples a cleavable GGFG peptide-PEG4 linker with a propargyl handle to the DXd topoisomerase I inhibitor. It is supplied as an off-white to light yellow solid, with high purity and DMSO solubility for use in conjugation and payload studies.
- High purity, 99.99% (HPLC)
- Molecular weight 1083.12 g/mol
- Chemical formula C54H63FN8O15
- Physical appearance: solid, off-white to light yellow
- Storage: 4°C as supplied; in solvent -80°C (up to 6 months) or -20°C (up to 1 month)
- Solubility: DMSO up to 100 mg/mL (use ultrasonic)
- Intended use: research use only for ADC linker-payload development
Cayman Chemical dPE-PEG 2000 MaleImIde 50mg
A MEK inhibitor (IC50 5.73 nM) and an active metabolite of CI-1040 reduces viral titers in A549 and MDCK cells infected with influenza A (EC50s 6.356 and 4.498 UM respectively) increases survival in H1N1pdm09 influenza A-infected mice at 50 mg/kg per day
Medchemexpress LLC 3,6,9,12,15,18-hexaoxanonadecanoic acid | 16142-03-3 | 99.9% | 310.34 | C13H26O8 | 250 MG
m-PEG5-CH2COOH is a methyl-terminated PEG5 linker bearing a terminal carboxylic acid, designed for use in antibody-drug conjugate (ADC) and PROTAC linker synthesis as well as general bioconjugation and medicinal chemistry research.
- High purity (99.9%).
- Methyl-terminated PEG5 chain with a terminal carboxylic acid functional group.
- Suitable for ADC and PROTAC linker synthesis and general bioconjugation.
- Soluble in DMSO at 200 mg/mL; sonication recommended.
- Stable when stored sealed and protected from moisture; in solution store at -80°C (6 months) or -20°C (1 month).
- Supplied in research-scale packaging suitable for synthetic workflows.
Medchemexpress LLC Tamra-peg4-acid | 1909223-02-4 | 95.3% | C36H43N3O10 | 25 MG
TAMRA-PEG4-acid is a dye derivative of TAMRA containing 3 PEG units. It is for research use only and not sold to patients.
- Dye derivative of TAMRA
- Contains 3 PEG units
- Used in fluorescent dye applications
- Related to labeling chemistry
- A functional group type
- Belongs to rhodamine dyes
Chemscene ChemScene | Mal-amido-PEG8-NHS ester | 100MG | CS-W020873 | 0.98 | 756525-93-6| MFCD11041144 | 689.71
ChemScene | Mal-amido-PEG8-NHS ester | 100MG | CS-W020873 | 0.98 | 756525-93-6| MFCD11041144 | 689.71
eMolecules 2098799-77-8 | Thalidomide-O-PEG4-Propargyl | Broadpharm488.493 | C24H28N2O9 | 98.000 | O=C1N(C2CCC(=O)NC2=O)C(=O)c2c1cccc2OCCOCCOCCOCCOCC#C | 100mg | 490840986
Thalidomide-O-PEG4-Propargyl | Broadpharm | 2098799-77-8488.493 | C24H28N2O9 | 98.000 | O=C1N(C2CCC(=O)NC2=O)C(=O)c2c1cccc2OCCOCCOCCOCCOCC#C | 100mg | 490840986