Protein Modification Reagents
Medchemexpress LLC DBCO-PEG4-Biotin | 1255942-07-4 | 99.5% | 100 MG
DBCO-PEG4-Biotin is an azadibenzocyclooctyne-biotin derivative that features a biotin group and four polyethylene glycol (PEG) units. This versatile biotinylation reagent is utilized for the introduction of a biotin moiety to azide-labeled biomolecules. It enables copper-free strain-promoted alkyne-azide click chemistry (SPAAC) reactions, leading to the formation of a stable triazole linkage.
- Contains a biotin group and four PEG units.
- Introduces a biotin moiety to azide-labeled biomolecules.
- Facilitates copper-free strain-promoted alkyne-azide click chemistry.
- Forms a stable triazole linkage.
- Utilized for research purposes.
Medchemexpress LLC (S,R,S)-AHPC-PEG4-NH2 | 2010159-57-4 | MFCD31657338 | 95.6% | 663.83 | C32H49N5O8S | 25 MG
(S,R,S)-AHPC-PEG4-NH2 is an E3 ligase ligand-linker conjugate that combines a VHL-targeting AHPC ligand with a four-unit PEG linker for use in PROTAC design and targeted protein degradation research. It is supplied as a solid powder for laboratory synthesis and biochemical studies.
- Designed for VHL-mediated targeted protein degradation applications.
- Contains a four-unit polyethylene glycol linker to provide flexibility and solubility.
- White to off-white solid powder form suitable for synthesis workflows.
- CAS number 2010159-57-4 for unambiguous identification.
- Molecular weight 663.83 g·mol-1 and formula C32H49N5O8S.
- Recommended storage: powder -20°C (3 years) or 4°C (2 years).
Medchemexpress LLC N3-PEG4-C2-NHS ester | 944251-24-5 | MFCD13184948 | 98.9% | 388.37 | C15H24N4O8 | 25 MG
N3-PEG4-C2-NHS ester is a non-cleavable 4-unit polyethylene glycol (PEG) linker containing an azide group and an N-hydroxysuccinimide (NHS) ester for amine coupling; it is used for bioconjugation and click chemistry applications such as antibody-drug conjugate synthesis.
- Azide functional group enables copper-catalyzed azide-alkyne cycloaddition (CuAAC) and strain-promoted alkyne-azide cycloaddition (SPAAC).
- NHS ester reacts with primary amines to form stable amide bonds for labeling.
- Four-unit PEG spacer increases solubility and reduces steric hindrance.
- High purity suitable for research-grade bioconjugation workflows.
- Stable when stored under recommended low-temperature conditions to preserve reactivity.
Cayman Chemical ANTIBODY DBCO acId 100mg
A copper-free click chemistry reagent; has been used in the study of glycoprotein charge effects on the migration and invasion of 9-azido sialic acid-labeled cancer cells in vitro; has also been used in the synthesis of DBCO-modified RNase A to deliver RNase A into AAM-labeled cancer cells in vitro and in vivo to induce cytotoxicity and reduce tumor growth, respectively
eMolecules TAMRA-PEG3-Azide | 1228100-59-1 | MFCD29912854 | 100mg
Broadpharm | TAMRA-PEG3-Azide | 100mg | 268505034 | BP-22479 | 90.000 | 1228100-59-1 | MFCD29912854 | 630.702 | C33H38N6O7
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![Research Products International Corp PEG 8000 [Polyethylene Glycol 8000], 10 Kilograms](https://assets.fishersci.com/TFS-Assets/CCG/product-images/VN00006095-P48080-10000.0.JPG-250.jpg)
Research Products International Corp PEG 8000 [Polyethylene Glycol 8000], 10 Kilograms
Ultrapure white crystals for molecular biology applications such as precipitation of DNA, nucleic acids, hybridization and fusion of mammalian cells.Melting Point: 55°-60°C
eMolecules Broadpharm / Methyltetrazine-PEG5-alkyne / 10mg / 268505114 / BP-22444 / 95.000 / 1802907-97-6 / MFCD28334550 / 402.451 / C20H26N4O5
Broadpharm / Methyltetrazine-PEG5-alkyne / 10mg / 268505114 / BP-22444 / 95.000 / 1802907-97-6 / MFCD28334550 / 402.451 / C20H26N4O5
eMolecules Tos-PEG3-t-butyl ester | Broadpharm | 850090-13-0 | MFCD27635184 | 388.480 | C18H28O7S | 96.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCCC(=O)OC(C)(C)C | 1g | 229582400
Tos-PEG3-t-butyl ester | Broadpharm | 850090-13-0 | MFCD27635184 | 388.480 | C18H28O7S | 96.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCCC(=O)OC(C)(C)C | 1g | 229582400
eMolecules Tos-peg5 t-butyl ester | 581065-94-3 | 1G | Purity: 98%
Combi-Blocks | Tos-peg5 t-butyl ester | 1G | 581065-94-3 | MFCD22574810
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eMolecules Amino-PEG6-t-butyl ester | Broadpharm | 1286281-32-0 | MFCD13184944 | 409.520 | C19H39NO8 | 98.000 | CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCN | 1g | 112541647
Amino-PEG6-t-butyl ester | Broadpharm | 1286281-32-0 | MFCD13184944 | 409.520 | C19H39NO8 | 98.000 | CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCN | 1g | 112541647
![eMolecules endo-BCN-Peg3-maleimide | Combi-Blocks, Inc. | 2141976-33-0 | | 519.595 | C26H37N3O8 | 95.000 | O=C(CCN1C(=O)C=CC1=O)NCCOCCOCCOCCNC(=O)OC[C@@H]1[C@@H]2CCC#CCC[C@H]12 | 100mg | 569346425](https://assets.fishersci.com/TFS-Assets/CCG/product-images/NC2318776.JPG-250.jpg)
eMolecules endo-BCN-Peg3-maleimide | Combi-Blocks, Inc. | 2141976-33-0 | | 519.595 | C26H37N3O8 | 95.000 | O=C(CCN1C(=O)C=CC1=O)NCCOCCOCCOCCNC(=O)OC[C@@H]1[C@@H]2CCC#CCC[C@H]12 | 100mg | 569346425
endo-BCN-Peg3-maleimide | Combi-Blocks, Inc. | 2141976-33-0 | | 519.595 | C26H37N3O8 | 95.000 | O=C(CCN1C(=O)C=CC1=O)NCCOCCOCCOCCNC(=O)OC[C@@H]1[C@@H]2CCC#CCC[C@H]12 | 100mg | 569346425
eMolecules Broadpharm Mal-amido-PEG8-acid 100mg 249969292 BP-22214 97 000 1334177-86-4 MFCD13184956 592 639 C26H44N2O13
Broadpharm Mal-amido-PEG8-acid 100mg 249969292 BP-22214 97 000 1334177-86-4 MFCD13184956 592 639 C26H44N2O13
Medchemexpress LLC 3,6,9,12-tetraoxatridecan-1-amine | 85030-56-4 | 98.8% | 207.27 g/mol | C9H21NO4 | 5 G
m-PEG4-Amine is a methoxy-terminated polyethylene glycol (PEG4) linker with a terminal primary amine used as a cleavable linker for antibody-drug conjugates (ADCs) and as a PEG-based linker in PROTAC synthesis. The compound has CAS 85030-56-4, molecular weight 207.27 g/mol, and is typically supplied as a colorless to light yellow liquid.
- Primary amine functional group suitable for conjugation chemistry.
- Methoxy-terminated PEG4 spacer provides solubility and flexibility.
- Cleavable linker applications for ADC and PROTAC synthesis.
- Stable when stored protected from light at recommended temperatures.
- Colorless to light yellow liquid, easy to handle in solution-phase chemistry.
eMolecules Broadpharm / Cy5-PEG4-acid / 10mg / 263744692 / BP-22346 / 96.000 / / MFCD28142461 / 766.420 / C43H60ClN3O7
Broadpharm / Cy5-PEG4-acid / 10mg / 263744692 / BP-22346 / 96.000 / / MFCD28142461 / 766.420 / C43H60ClN3O7
Cayman Chemical dPE-PEG 2000 MaleImIde 5mg
A metabolite of linoleic acid increases transactivation of PPARa and PPARY in reporter assays using mouse aortic endothelial cells at 68 UM induces chemotaxis of primary human monocytes at 10 UM has been found in oxLDL