Biotin and derivatives
![eMolecules 943858-70-6 | Azidobutyric acid NHS ester | Broadpharm | MFCD22573606 | 226.192 | C8H10N4O4 | 95.000 | [N-]=[N+]=NCCCC(=O)ON1C(=O)CCC1=O | 1g | 779523832](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000217159.jpg-250.jpg)
eMolecules 943858-70-6 | Azidobutyric acid NHS ester | Broadpharm | MFCD22573606 | 226.192 | C8H10N4O4 | 95.000 | [N-]=[N+]=NCCCC(=O)ON1C(=O)CCC1=O | 1g | 779523832
Azidobutyric acid NHS ester | Broadpharm | 943858-70-6 | MFCD22573606 | 226.192 | C8H10N4O4 | 95.000 | [N-]=[N+]=NCCCC(=O)ON1C(=O)CCC1=O | 1g | 779523832
TARGETMOL CHEMICALS INC DSPE-NHS 25MG
Also available in 5 mg, 10 mg, 50 mg, 100 mg and bulk. Please contact Fisher for quotes. DSPE-NHS is a lipid that is often combined with other compounds to form nanoemulsions that can be used in skin care products and pharmaceuticals. Purity 99.85%
Apexbio Technology LLC Azidobutyric acid NHS ester 50mg
Azidobutyric acid NHS ester is a chemical reagent used to introduce azide functional groups onto biomolecules containing primary amines It is designed to enable the covalent modification of proteins peptides or amino-modified nucleotides facilitating subsequent copper-catalyzed azide-alkyne click chemistry reactions Azidobutyric acid NHS ester exerts its utility by forming stable amide bonds with amino groups under mild aqueous conditions thus providing an azide handle for bioorthogonal labeling Based on these properties Azidobutyric acid NHS ester holds research potential in applications such as bioimaging flow cytometry protein profiling affinity purification and drug conjugation research
Medchemexpress LLC Ibrutinib-biotin | 1599432-18-4 | MFCD30496724 | 99.7% | 1097.37 | C56H80N12O9S | 10 MG
Ibrutinib-biotin is a biotinylated chemical probe derived from the BTK inhibitor ibrutinib. The probe links ibrutinib to a biotin tag via a long-chain linker, preserving low-nanomolar inhibitory potency against Bruton's tyrosine kinase while enabling affinity capture and target engagement studies. It is supplied as a high-purity solid and is also available as a DMSO solution for biochemical assays.
- Biotin tag enables affinity capture and pull-down experiments.
- Retains low-nanomolar BTK inhibitory potency for target engagement.
- High purity suitable for biochemical and proteomic workflows.
- Available as solid and as DMSO solution for assay flexibility.
- Useful for mechanism-of-action studies and probe-based profiling.
Medchemexpress LLC M-PEG-NHS ester | 92451-01-9 | 98.0% | (C2H4O)nC7H9NO5 | 50 MG
M-PEG-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
- Peg-based protac linker
- Used in the synthesis of protacs
- Protacs contain two different ligands connected by a linker
- Features a ligand for an E3 ubiquitin ligase and another for the target protein
- Exploits the intracellular ubiquitin-proteasome system
- Selectively degrades target proteins
Medchemexpress LLC DBCO-NHS ester | 1353016-71-3 | 99.5% | 402.40 g/mol | C23H18N2O5 | 100 MG
DBCO-NHS ester is an N-hydroxysuccinimide (NHS) activated ester bearing a dibenzocyclooctyne (DBCO) moiety, used as a non-cleavable linker and click-chemistry reagent for bioconjugation and antibody-drug conjugate construction.
- Non-cleavable ADC linker suitable for bioconjugation.
- Enables strain-promoted alkyne-azide cycloaddition (SPAAC) with azide-functionalized partners.
- High purity (reported ~99.5%).
- Physical form: solid; color white to yellow.
- Storage: powder -20°C (3 years); in solvent -80°C (6 months) or -20°C (1 month).
- Molecular formula C23H18N2O5; molecular weight 402.40 g/mol.
Medchemexpress LLC Aeide-C1-NHS ester | 824426-32-6 | 98.0% | C6H6N4O4 | 250 MG
Aeide-C1-NHS ester | 824426-32-6 | 98.0% | C6H6N4O4 | 250 MG
Medchemexpress LLC Biotin-VAD-FMK | 1135688-15-1 | ≥98.0% | 672.81 g/mol | C30H49FN6O8S | 10 MG
Biotin-VAD-FMK is a cell-permeable, irreversible, biotin-labeled caspase inhibitor used to detect and label active caspases in cell lysates. The FMK electrophile covalently modifies active caspase catalytic residues, and the biotin tag enables downstream capture or detection with streptavidin-based reagents. Common uses include activity profiling and affinity capture in apoptosis research.
- Detects and labels active caspases in cell lysates.
- Covalent binding via FMK electrophile for durable labeling.
- Biotin tag enables streptavidin-based capture or detection.
- Cell-permeable for use in intact cells and lysates.
- Suitable for pull-downs, western blotting, and activity profiling.
- Stable powder with recommended frozen storage for long-term retention.
Medchemexpress LLC Cyanine5.5 NHS ester (tetrafluoroborate) | 2375105-86-3 | 98.4% | 767.66 | 25 MG
Cyanine5.5 NHS ester tetrafluoroborate belongs to the cyanine dye series and is a common fluorescent marker for biomolecules that can interact with biomolecules. Cyanine dyes may also bind to double-helical DNA through intercalation and exhibit enhanced fluorescence upon binding.
- Belongs to the cyanine dye series
- Common fluorescent marker for biomolecules
- Interacts with biomolecules
- Binds to double-helical DNA through intercalation
- Exhibits enhanced fluorescence upon binding
- For research use only
- Powder can be stored at -20°C for 3 years
- In solvent, store at -80°C for 6 months or -20°C for 1 month
- Soluble in DMSO at 50 mg/mL (65.13 mM)
Medchemexpress LLC Biotin hydrazide | 66640-86-6 | MFCD00078532 | 98.7% | 258.34 g·mol⁻¹ | C10H18N4O2S | 500 MG
Biotin hydrazide is a carbonyl-reactive biotinylation reagent used to label carbonyl-containing biomolecules. It reacts with aldehyde and ketone groups (for example, periodate-oxidized glycoproteins) to introduce a biotin tag for downstream detection, affinity capture, and streptavidin-based assays.
- Reacts with carbonyl groups for selective biotinylation.
- Enables streptavidin-based detection and affinity capture.
- High purity for reproducible biochemical assays.
- Available as solid and solution preparations for workflow flexibility.
- Suitable for protein labeling and probe-based detection applications.