Biotin and derivatives
eMolecules Mal-Amido-PEG11-amine TFA salt | Broadpharm |809.827 | C33H58F3N3O16 | 98.000 | OC(=O)C(F)(F)F.NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)CCN1C(=O)C=CC1=O | 250mg | 550804710
Mal-Amido-PEG11-amine TFA salt | Broadpharm |809.827 | C33H58F3N3O16 | 98.000 | OC(=O)C(F)(F)F.NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)CCN1C(=O)C=CC1=O | 250mg | 550804710
Medchemexpress LLC IL-15 Human Biotin 50ug | 50ug
IL-15 protein regulates immune cells stimulates the proliferation of NK cells T cells and B cells and promotes cytokine secretion IL-15 Protein Human (Biotinylated HEK293 Fc-Avi) is the recombinant human-derived IL-15 protein expressed by HEK293 with C-Avi C-hFc labeled tag
Medchemexpress LLC Norbornene-NHS | 1888335-48-5 | C12H13NO5 | 50 MG
Norbornene-NHS is a click chemistry reagent and a dienophile for conjugation via copper-free Click reaction with tetrazines. It is for research use only and not sold to patients.
- Purity: 92.08%
- Molecular weight: 251.24
- Appearance: Liquid
- Color: Light yellow to yellow
- Used for conjugation via copper-free click reaction
![eMolecules 58-85-5 | D-Biotin | Ochem Incorporation | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 773150948](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000482342.jpg-250.jpg)
eMolecules 58-85-5 | D-Biotin | Ochem Incorporation | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 773150948
D-Biotin | Ochem Incorporation | 58-85-5 | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 773150948
Medchemexpress LLC Biotin-PEG3-acid 250mg | 252881-76-8 | 447.55 g·mol⁻¹ | C19H33N3O7S | 250 MG
Biotin-PEG3-acid is a biotin-labeled PEG3 linker with a terminal carboxylic acid, supplied as a solid for use in conjugation and PROTAC linker synthesis. It provides a hydrophilic spacer arm to attach biotin to small molecules or probes, enabling affinity capture, purification, and detection workflows.
- Biotin-labeled PEG3 linker with carboxylic acid terminus.
- Suitable for coupling chemistries such as amide bond formation.
- Used in PROTAC synthesis, biotinylation, pull-downs, and detection assays.
- Molecular weight 447.55 g·mol⁻¹ and CAS 252881-76-8.
- Purity 98.0%.
- Supplied as a 250 MG solid; other sizes available.
Medchemexpress LLC Sulfo-TAG NHS ester disodium | 482618-42-8 | C43H39N7Na2O16RuS4 | 1 MG
Sulfo-TAG NHS ester disodium is an N-hydroxysuccinimide ester designed for coupling to proteins via primary amine groups. It is effectively utilized for antibody labeling applications.
- N-hydroxysuccinimide ester
- Couples to proteins via primary amine groups
- Used for antibody labeling
- Soluble in DMSO and H2O
Medchemexpress LLC 1H-Thieno[3,4-d]imidazole-4-pentanamide, hexahydro-2-oxo-N-[6-[[1-oxo-3-(2-pyridinyldithio)propyl] | 129179-83-5 | 99.7% | 539.78 | 50 MG
Biotin-HPDP is a biochemical reagent that can couple with GMPS and label free protein thiols. It is suitable for use as a biological material or organic compound for life science related research.
- Couples with GMPS
- Labels free protein thiols
- Modified surfaces adsorb proteins
Medchemexpress LLC Gggyk-biotin | >99.75% | 706.81 | 5 MG
Gggyk-biotin is a synthetic peptide that serves as a substrate for Sortase A, an enzyme involved in bacterial surface protein anchoring. This peptide is specifically designed to facilitate studies on the substrate specificity of Sortase A, allowing researchers to explore and develop variants of the enzyme with altered substrate preferences.
- Acts as a substrate for Sortase A.
- Useful for studying Sortase A's substrate specificity.
- Can be employed in the development of Sortase A variants with distinct substrate specificities.
- Intended for research purposes and not for human use.
Medchemexpress LLC Biotin-PFP ester | 120550-35-8 | 97.0% | 1 G
Biotin-PFP ester is a biotinylated pentafluorophenyl (PFP) ester reagent used as an alkyl/ether-based PROTAC linker for the synthesis of PROTAC molecules. It provides an activated ester for coupling to amine-containing ligands and a biotin affinity tag for purification or detection.
- Provides a biotin handle for affinity capture and detection.
- Features a PFP-activated ester for efficient coupling to amine-containing ligands.
- Suitable as an alkyl/ether-based linker in PROTAC synthesis workflows.
- Offered in multiple laboratory-scale pack sizes for convenient use.
Medchemexpress LLC DBCO-biotin | 1418217-95-4 | MFCD22380751 | 98.5% | 502.63 g·mol⁻1 | C28H30N4O3S | 10MG
DBCO-Biotin is a bifunctional click-chemistry reagent that links a dibenzocyclooctyne (DBCO) reactive moiety to a biotin affinity tag, enabling copper-free strain-promoted alkyne-azide cycloaddition (SPAAC) for bioconjugation and probe development. Supplied as a high-purity solid for laboratory research, it is commonly used in bioconjugation, affinity enrichment, and linker synthesis applications.
- Enables copper-free click chemistry via DBCO-mediated SPAAC.
- Provides a biotin tag for affinity capture and detection.
- High purity suitable for sensitive bioconjugation workflows.
- Available in small mg-scale quantities for research use.
- Stable when stored under recommended conditions; consult safety data for handling.
Medchemexpress LLC Biotin-Gastrin Releasing Peptide, human TFA | 3085.67 | 5 MG
Biotin-Gastrin Releasing Peptide, human TFA, is a biotinylated gastrin releasing peptide (GRP). Gastrin-releasing peptide (GRP) is a neuropeptide known for its growth-stimulatory and tumorigenic properties. This product is intended for research use only and is not sold to patients.
- Biotinylated gastrin releasing peptide (GRP)
- Has growth-stimulatory and tumorigenic properties
- Intended for research use only
Medchemexpress LLC 1,2-distearoyl-sn-glycero-3-phosphoethanolamine N-hydroxysuccinimide ester | 1383932-86-2 | MFCD29267127 | 95.0% | 945.21 g/mol | C49H89N2O13P | 25 MG
DSPE-NHS is an NHS-activated phospholipid (1,2-distearoyl-sn-glycero-3-phosphoethanolamine N-hydroxysuccinimide ester) used to introduce a reactive NHS ester at liposome or nanoparticle surfaces for covalent conjugation to primary amines on proteins, peptides, and other amine-containing molecules. It self-assembles into lipid bilayers and is commonly used for antibody labeling, liposome functionalization, and nanoparticle surface modification in research applications.
- Reactive NHS ester for efficient amine coupling.
- Self-assembles into lipid bilayers for membrane incorporation.
- Enables stable amide bond formation with proteins and peptides.
- Suitable for liposome and nanoparticle surface modification.
- Available in multiple laboratory-scale package sizes for research use.
Medchemexpress LLC Bis-SS-C3-NHS ester | 98604-88-7 | 98.0% | 432.47 g/mol | C16H20N2O8S2 | 100 MG
Bis-SS-C3-NHS ester is a cleavable antibody-drug conjugate (ADC) linker containing a disulfide-based spacer and N-hydroxysuccinimide (NHS) ester reactive groups for amine coupling. It is used to attach cytotoxic payloads to antibodies and enable controlled payload release inside target cells.
- Molecular formula: C16H20N2O8S2.
- Molecular weight: 432.47 g/mol.
- Cas number: 98604-88-7.
- Purity: 98.0%.
- Appearance: white to off-white solid.
- Storage: in solvent, -80°C for up to 6 months; -20°C for up to 1 month; store sealed and away from moisture.
- Available in multiple sizes, including 100 mg, for research use.
Medchemexpress LLC Butanoic acid NHS ester (BHQ-1) | 916753-61-2 | 95.4% | 601.61 g/mol | C30H31N7O7 | 10 MG
BHQ-1 NHS is an N-hydroxysuccinimide (NHS) ester derivative of a non-fluorescent quencher designed for covalent coupling to primary amines on nucleotides, oligonucleotides, and other biomolecules. It is intended for use as a quencher in fluorescence probe and assay design and for direct labeling of fluorescently labeled nucleotides. For research use only.
- Reactive NHS ester for stable amide bond formation with amines.
- Non-fluorescent quenching suitable for fluorescence-based assays.
- High purity, typically 95.44% as stated on the COA.
- Soluble in DMSO at approximately 4.35 mg/mL; ultrasonic agitation recommended.
- Provided in milligram quantities for small-scale labeling workflows.
Medchemexpress LLC Amino-PEG11-amine | 479200-82-3 | 95.0% | 50 MG
Amino-PEG11-amine is a PEG-based (12 units) PROTAC linker used to combine two mono diethylstilbestrol (DES)-based ligands. It offers an alternative strategy for creating more selective and active ER antagonists for the endocrine therapy of breast cancer. It has a molecular weight of 544.68 and a chemical formula of C24H52N2O11.
- Purity: 95.0%
- Appearance: Oil
- Color: White to off-white
- For research use only.