Biotin and derivatives
Medchemexpress LLC DBCO-PEG3-NHS ester | 2163772-16-3 | 98.5% | 605.64 g/mol | C32H35N3O9 | 10 MG
DBCO-PEG3-NHS ester is a PEG-spaced dibenzocyclooctyne (DBCO) reagent bearing an N-hydroxysuccinimide (NHS) ester. It is designed for copper-free click conjugation of azide-functionalized payloads to primary amines and is commonly used as a linker in bioconjugation workflows such as antibody-drug conjugate synthesis.
- Enables copper-free strain-promoted alkyne-azide cycloaddition (SPAAC) with azide-containing partners.
- Contains an NHS ester reactive toward primary amines for facile conjugation.
- Peg3 spacer improves solubility and reduces steric hindrance at the conjugation site.
- Suitable for bioconjugation workflows, including linker installation for antibody-drug conjugates.
- Provided at high reported purity for reproducible conjugation performance.
Medchemexpress LLC Biotin-PEG-Thiol (MW 2000) | 98.0% | 2000 (Average) | 50 MG
Biotin-PEG-Thiol (MW 2000) is an active compound that is pegylated by binding to streptavidin or antibiotin with high affinity and specificity. It can modify biomolecules, proteins, peptides, and other small molecule materials and is widely used in the research of agent release and nano new materials.
- Active compound
- Pegylated for high affinity and specificity binding to streptavidin or antibiotin
- Modifies biomolecules, proteins, peptides, and other small molecule materials
- Utilized in agent release and nano new materials research
- Functions as a fluorescent dye
- Acts as an inhibitor
Medchemexpress LLC Biotin-PEG8-acid | 2143964-62-7 | 99.8% | C29H53N3O12S | 50 MG
Biotin-PEG8-acid is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs. PROTACs contain two different ligands connected by a linker: one for an E3 ubiquitin ligase and the other for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins. It is for research use only.
- Appears as a white to off-white solid
- Molecular weight: 667.81
Medchemexpress LLC Biotin-labeled ODN 2395 sodium | 1254617-22-5 | 1 MG
Biotin-labeled ODN 2395 sodium is a C class oligodeoxynucleotide and a TLR9 agonist. It is used for research purposes to evaluate CpG ODN cellular uptake and localization using a biotin detection system and light microscopy.
- Is a C class oligodeoxynucleotide
- Acts as a TLR9 agonist
- Facilitates evaluation of CpG ODN cellular uptake and localization
- Designed for use with biotin detection systems and light microscopy
Sigma Aldrich Fine Chemicals Biosciences Biotin >=99% (HPLC), lyophilized powder | 58-85-5 | MFCD00005541 | 25G
Biotin >=99% (HPLC), lyophilized powder | Purity: >=99% (HPLC) | Mol Wt: 244.31 | 58-85-5 | MFCD00005541 | 25G
![eMolecules 21160-82-7 | Z-Lys(Z)-ONp | Combi-Blocks | MFCD00024657 | 535.553 | C28H29N3O8 | 97.000 | [O-][N+](=O)c1ccc(OC(=O)[C@H](CCCCNC(=O)OCc2ccccc2)NC(=O)OCc2ccccc2)cc1 | 1g | 357559919](https://assets.fishersci.com/TFS-Assets/CCG/product-images/VN00128114-357559919.PNG-250.jpg)
eMolecules 21160-82-7 | Z-Lys(Z)-ONp | Combi-Blocks | MFCD00024657 | 535.553 | C28H29N3O8 | 97.000 | [O-][N+](=O)c1ccc(OC(=O)[C@H](CCCCNC(=O)OCc2ccccc2)NC(=O)OCc2ccccc2)cc1 | 1g | 357559919
Z-Lys(Z)-ONp | Combi-Blocks | 21160-82-7 | MFCD00024657 | 535.553 | C28H29N3O8 | 97.000 | [O-][N+](=O)c1ccc(OC(=O)[C@H](CCCCNC(=O)OCc2ccccc2)NC(=O)OCc2ccccc2)cc1 | 1g | 357559919