Biotin and derivatives
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 methyl ester 500mg
Biotin methyl ester is a biochemical reagent that can be used as a biological material or organic compound for life science related research
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-ATRA-conjugate | 2226143-93-5 | 98.4% | C36H55N3O4S | 10MG
ATRA-biotin (biotin-ATRA-conjugate) is a biotin-labeled derivative of all-trans retinoic acid used as a tracer and affinity reagent to track ATRA distribution and interactions in biological samples. It supports biotin-streptavidin workflows and is supplied at high purity for research use only.
- Biotin tag enables streptavidin-based detection.
- Suitable for localization studies in cells and tissues.
- Compatible with pull-down and affinity capture assays.
- High purity for reproducible experimental results.
- Available in multiple laboratory-friendly pack sizes.
Medchemexpress LLC Bis-SS-C3-NHS ester | 98604-88-7 | 98.0% | 432.47 g·mol⁻¹ | C16H20N2O8S2 | 5 MG
Bis-SS-C3-NHS ester is a cleavable disulfide-containing NHS ester linker reagent used to conjugate amine-containing payloads during antibody-drug conjugate (ADC) synthesis. It provides a reducible spacer and an activated ester for efficient amide bond formation.
- cleavable disulfide linker for controlled payload release
- nhs ester functional group for amine conjugation
- suitable for antibody-drug conjugate synthesis
- reported high purity for reliable coupling reactions
- store cold and protect from moisture to preserve stability
Medchemexpress LLC Biotin-α-Hypophamine | 99.3% | 1233.48 | 5 MG
Biotin-Oxytocin is a biologically active peptide, also known as Biotin-α-Hypophamine or Biotin-Oxytocic hormone. It is an oxytocin derivative N-terminally labeled with biotin.
- Biologically active peptide
- N-terminally labeled with biotin
- Targets oxytocin receptor
- Involved in GPCR/G protein pathway
Biotium Dyes For Labeling Carbonyls and Carbohydrates Fluorescence Microscopy Cell and Organelle Stains Cell Surface and Membrane Dyes 1/EA
Label live cell surface glycoproteins with biotin for fixable plasma membrane staining or protein extraction GlycoLiner uses novel reactive chemistry for faster more efficient and gentler labeling compared to conventional methods Label 100 wells (200 uL) or two T75 flasks (10 mL)
![Medchemexpress LLC 2,5-pyrrolidinedione, 1,1'-[oxybis[(1-oxo-3,1-propanediyl)oxy]]bis- (9CI) | 65869-64-9 | MFCD20226397 | 97.0% | 356.28 | C14H16N2O9 | 250 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000202473.png-250.jpg)
Medchemexpress LLC 2,5-pyrrolidinedione, 1,1'-[oxybis[(1-oxo-3,1-propanediyl)oxy]]bis- (9CI) | 65869-64-9 | MFCD20226397 | 97.0% | 356.28 | C14H16N2O9 | 250 MG
Bis-PEG1-NHS ester is a short, non-cleavable polyethylene glycol (PEG) homobifunctional linker bearing N-hydroxysuccinimide (NHS) ester groups, supplied as a white to off-white solid for research use. It is designed for antibody-agent conjugation and other amine-targeted bioconjugation applications where a hydrophilic, short spacer is required.
- non-cleavable, homobifunctional PEG linker with NHS ester termini
- short 1-unit PEG spacer to increase hydrophilicity and solubility
- amine-reactive NHS esters for labeling primary amines on proteins and peptides
- supplied as a solid with recommended storage at -20°C for long term
- batch-specific purity reported by COA; suitable for research applications only
Medchemexpress LLC Biotin-LC-LC-NHS | 89889-52-1 | 98.0% | 567.70 g/mol | C26H41N5O7S | 100 MG
Biotin-LC-LC-NHS is an amino-reactive N-hydroxysuccinimide (NHS) ester used to biotinylate primary amines on proteins, antibodies, and small molecules. It contains an extended LC-LC spacer arm to improve accessibility of the biotin tag and is supplied as a solid for laboratory conjugation and cross-linking applications.
- Reacts with primary amines for stable biotinylation.
- Extended LC-LC spacer improves tag accessibility.
- Provided as a solid, white to light yellow powder.
- Soluble in DMSO at 100 mg/mL; compatible with common in vivo formulation vehicles.
- Store protected from light under nitrogen at -20°C; in solution, store at -80°C for long-term storage.
![eMolecules 58-85-5 | Biotin | Ambeed | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 100g | 490500209](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000471896.jpg-250.jpg)
eMolecules 58-85-5 | Biotin | Ambeed | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 100g | 490500209
Biotin | Ambeed | 58-85-5 | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 100g | 490500209
eMolecules 1807518-72-4 | Mal-PEG1-NHS ester | Broadpharm | MFCD26127783 | 310.262 | C13H14N2O7 | 0.000 | O=C(CCOCCN1C(=O)C=CC1=O)ON1C(=O)CCC1=O | 1g | 802656011
Mal-PEG1-NHS ester | Broadpharm | 1807518-72-4 | MFCD26127783 | 310.262 | C13H14N2O7 | 0.000 | O=C(CCOCCN1C(=O)C=CC1=O)ON1C(=O)CCC1=O | 1g | 802656011
Medchemexpress LLC Dspe-biotin | 133695-76-8 | 97.5% | 974.36 | C51H96N3O10PS | 25 MG
DSPE-Biotin is a biotin-functionalized phospholipid designed to introduce biotin into lipid-based systems such as liposomes and micelles for streptavidin/avidin-mediated capture, labeling, or immobilization in biochemical and biophysical research applications.
- Biotin functional group enables strong streptavidin/avidin binding.
- Compatible with incorporation into liposomes, micelles, and other lipid assemblies.
- High purity (97.5%) supports reproducible experimental results.
- Solid, off-white to light yellow appearance for easy handling.
- Soluble in DMSO (≈1.3 mg/mL) with sonication and warming to 60°C.
- Store protected from light at -20°C; in solvent, store at -80°C for up to 6 months.
Medchemexpress LLC exo-BCN-NHS carbonat 100mg
exo-BCN-NHS carbonate carbonate contains BCN group Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups
Medchemexpress LLC M-PEG13-NHS ester | 3063847-98-0 | 95.0% | C32H59NO17 | 100 MG
m-PEG13-NHS ester is a PEG-based PROTAC linker designed for the synthesis of PROTACs. This compound is intended for research use only.
- PEG-based PROTAC linker
- Utilized in the synthesis of PROTACs
- For research use only
Medchemexpress LLC Bis-SS-C3-NHS ester | 98604-88-7 | 98.0% | 432.47 g/mol | C16H20N2O8S2 | 250 MG
Bis-SS-C3-NHS ester is a cleavable antibody-drug conjugate (ADC) linker containing N-hydroxysuccinimide (NHS) ester functional groups for amine coupling and a disulfide spacer that enables payload release under reductive intracellular conditions.
- Cleavable disulfide spacer for intracellular payload release.
- NHS ester functional groups for efficient amine coupling to biomolecules.
- High purity suitable for conjugation chemistry.
- White to off-white solid physical form.
- Recommended storage at -20°C, sealed and protected from moisture; in solvent, -80°C for up to 6 months.