Protein Labeling Reagents
Apexbio Technology LLC D-Desthiobiotin 533-48-2 100mg
D-Desthiobiotin (CAS 533-48-2) is a derivative of biotin lacking the thiophene ring It binds to avidin and streptavidin with lower affinity compared to biotin enabling reversible interaction in affinity purification and protein chromatography protocols This property facilitates gentle elution of biotinylated proteins or other biomolecules without harsh conditions D-Desthiobiotin is widely employed for the labeling detection and isolation of proteins and cells in biochemical and cell-based assays providing an efficient tool for applications requiring temporary and specific capture of biomolecular targets
System Biosciences LLC EXOGLOW LABELING KITExoGlow™-Vivo EV Labeling Kit (Near IR) = 12 Reactions
Monitor EV trafficking in vivo with the ExoGlow-Vivo EV Labeling Kit (Near IR), a unique dye developed for following Exosomes in animal models and tissues. Visualizing extracellular vesicles (EVs) in cells and organisms has been technically difficult due to the high background from auto-fluorescence in the UV and visible areas of the spectrum and a lack of specificity from the typically lipophilic dyes. SBI’s ExoGlow-Vivo EV Labeling Kit (Near IR) is the first reagent specifically designed to overcome these problems through the use of a proprietary, non-lipophilic dye that emits in the near infrared (NIR) range (excitation at 784 nm; emission at 806 nm). Delivering a level of specificity and sensitivity that takes the guesswork out of tracking EVs in vivo, ExoGlow-Vivo is ideal for EV biodistribution and kinetic studies needed to fully realize the value of EVs in basic research and translational applications.
![eMolecules 2242791-82-6 | Sulfo-Cy5 maleimide | Broadpharm | MFCD28385506 | 803.000 | C38H43KN4O9S2 | 95.000 | [K+].CN1\C(=C\C=C\C=C\C2=[N+](CCCCCC(=O)NCCN3C(=O)C=CC3=O)c3ccc(cc3C2(C)C)S([O-])(=O)=O)C(C)(C)c2cc(ccc12)S([O-])(=O)=O | 1mg | 296213699](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502462708.JPG-250.jpg)
eMolecules 2242791-82-6 | Sulfo-Cy5 maleimide | Broadpharm | MFCD28385506 | 803.000 | C38H43KN4O9S2 | 95.000 | [K+].CN1\C(=C\C=C\C=C\C2=[N+](CCCCCC(=O)NCCN3C(=O)C=CC3=O)c3ccc(cc3C2(C)C)S([O-])(=O)=O)C(C)(C)c2cc(ccc12)S([O-])(=O)=O | 1mg | 296213699
Sulfo-Cy5 maleimide | Broadpharm | 2242791-82-6 | MFCD28385506 | 803.000 | C38H43KN4O9S2 | 95.000 | [K+].CN1\C(=C\C=C\C=C\C2=[N+](CCCCCC(=O)NCCN3C(=O)C=CC3=O)c3ccc(cc3C2(C)C)S([O-])(=O)=O)C(C)(C)c2cc(ccc12)S([O-])(=O)=O | 1mg | 296213699
![eMolecules Cy3B amine | Broadpharm |695.320 | C37H47ClN4O5S | 0.000 | [Cl-].CC1(C)C2=C3C=C4C(CC[N+]5=C4C(C)(C)c4cc(CC(=O)NCCCCCC[NH3+])ccc54)OC3CCN2c2ccc(cc12)S([O-])(=O)=O | 1mg | 761705801](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502459603.PNG-250.jpg)
eMolecules Cy3B amine | Broadpharm |695.320 | C37H47ClN4O5S | 0.000 | [Cl-].CC1(C)C2=C3C=C4C(CC[N+]5=C4C(C)(C)c4cc(CC(=O)NCCCCCC[NH3+])ccc54)OC3CCN2c2ccc(cc12)S([O-])(=O)=O | 1mg | 761705801
Cy3B amine | Broadpharm |695.320 | C37H47ClN4O5S | 0.000 | [Cl-].CC1(C)C2=C3C=C4C(CC[N+]5=C4C(C)(C)c4cc(CC(=O)NCCCCCC[NH3+])ccc54)OC3CCN2c2ccc(cc12)S([O-])(=O)=O | 1mg | 761705801
![eMolecules ROX maleimide, 5-isomer | Broadpharm |656.739 | C39H36N4O6 | 0.000 | [O-]C(=O)c1cc(ccc1C1=c2cc3CCC[N+]4=c3c(CCC4)c2Oc2c3CCCN4CCCc(cc12)c34)C(=O)NCCN1C(=O)C=CC1=O | 1mg | 761705724](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502459979.PNG-250.jpg)
eMolecules ROX maleimide, 5-isomer | Broadpharm |656.739 | C39H36N4O6 | 0.000 | [O-]C(=O)c1cc(ccc1C1=c2cc3CCC[N+]4=c3c(CCC4)c2Oc2c3CCCN4CCCc(cc12)c34)C(=O)NCCN1C(=O)C=CC1=O | 1mg | 761705724
ROX maleimide, 5-isomer | Broadpharm |656.739 | C39H36N4O6 | 0.000 | [O-]C(=O)c1cc(ccc1C1=c2cc3CCC[N+]4=c3c(CCC4)c2Oc2c3CCCN4CCCc(cc12)c34)C(=O)NCCN1C(=O)C=CC1=O | 1mg | 761705724
Cayman Chemical AM1220 azepn Isomer 10mg
An isomer of AM1220 in which the piperidine group has been replaced with azepane; intended for forensic and research applications
American Research Products Inc CHROMOGENIC BIOTIN LABELING KI
5000265694 CHROMOGENIC BIOTIN LABELING KI
![Medchemexpress LLC 4-Imidazolidinehexanamide, N-[2-[(2-iodoacetyl)amino]ethyl]-5-methyl-2-oxo-, (4R,5S)- | 2924824-04-2 | MFCD34641797 | 99.5% | 424.28 | C14H25IN4O3 | 10 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000287218.png-250.jpg)
Medchemexpress LLC 4-Imidazolidinehexanamide, N-[2-[(2-iodoacetyl)amino]ethyl]-5-methyl-2-oxo-, (4R,5S)- | 2924824-04-2 | MFCD34641797 | 99.5% | 424.28 | C14H25IN4O3 | 10 MG
Desthiobiotin-iodoacetamide is an iodoacetamide-derived desthiobiotin reagent used in bioconjugation and chemoproteomics. It selectively reacts with cysteine residues to label and enrich proteins, and can be employed in antibody-drug conjugate (ADC) linker chemistry or as a probe in protein labeling workflows. The compound is supplied as a solid powder and is intended for research use only.
- Reacts with cysteine residues for selective labeling.
- Enables ADC linker formation for conjugation workflows.
- Facilitates affinity enrichment and proteomic profiling.
- High reported purity for consistent experimental performance.
- Stable solid form with recommended cold storage for longevity.
Medchemexpress LLC Sulfo-NHS-LC-biotin sodium | 191671-46-2 | MFCD00078534 | 98.0% | 556.59 | C20H29N4NaO9S2 | 10 MG
Sulfo-NHS-LC-Biotin sodium is a water-soluble, amine-reactive sulfo-NHS ester of biotin with a long-chain spacer (LC) that enables efficient labeling of primary amines on proteins and other biomolecules. It is formulated as the sodium salt to improve aqueous solubility and is suited for selective cell-surface biotinylation, detection, and affinity capture applications.
- Amine-reactive sulfo-NHS ester for efficient biotinylation.
- Long-chain spacer reduces steric hindrance and preserves biomolecule function.
- Water-soluble sodium salt suitable for aqueous labeling of surface proteins.
- Limited membrane permeability for selective cell-surface labeling.
- High purity and well-characterized for reproducible results.
- Soluble in DMSO (approx. 175 mg/mL); store sealed and away from moisture.
AURORA BIOLABS LLC Biotin Protein Ligase (BirA), 100 μg
Biotin-protein ligase activates biotin to form biotinyl 5' adenylate and transfers the biotin to biotin-accepting proteins. Biotin ligase also controls biotin synthesis in Escherichia coli. As a homodimer, it negatively controls the biotin synthetic operon.
Medchemexpress LLC HY-D0822 5mg Medchemexpress, CY3 CAS:146368-13-0 Purity:>98%
Medchemexpress, HY-D0822 5mg CY3 CAS:146368-13-0 Cy3 (Sulfo-Cyanine3) is an orange-fluorescent label for protein and nucleic acid (λ ex =554, λ em =568). 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.