Biotin and derivatives
Biotin, Powder, FCC, 97.5-100.5%, Spectrum™ Chemical
CAS: 58-85-5 Molecular Formula: C10H16N2O3S Molecular Weight (g/mol): 244.31 MDL Number: MFCD00005541 InChI Key: YBJHBAHKTGYVGT-UHFFFAOYNA-N IUPAC Name: 5-{2-oxo-hexahydro-1H-thieno[3,4-d]imidazol-4-yl}pentanoic acid SMILES: OC(=O)CCCCC1SCC2NC(=O)NC12
Biotin, Powder, USP, 97.5-102%, Spectrum™ Chemical
CAS: 58-85-5 Molecular Formula: C10H16N2O3S Molecular Weight (g/mol): 244.31 MDL Number: MFCD00005541 InChI Key: YBJHBAHKTGYVGT-UHFFFAOYNA-N IUPAC Name: 5-{2-oxo-hexahydro-1H-thieno[3,4-d]imidazol-4-yl}pentanoic acid SMILES: OC(=O)CCCCC1SCC2NC(=O)NC12
Apexbio Technology LLC Sulfo-NHS-LC-Biotin, 100mg. Cas: 127062-22-0 MFCD: MFCD00078534. Amine-reactive biotinylation reagent, long chain
Intermediate length, water-soluble biotinyltation reagent used to attach biotin to primary amines 127062-22-0. MFCD00078534
Medchemexpress LLC Sulfo-NHS-biotin sodium | 194041-65-1 | MFCD00078535 | ≥90.0% | C14H18N3NaO8S2 | 10MG
Sulfo-NHS-Biotin sodium is a water-soluble, amine-reactive biotinylation reagent that covalently labels primary amines on proteins and other biomolecules. The sulfonated N-hydroxysuccinimide ester increases aqueous solubility, allowing efficient labeling in physiological buffers and streamlined downstream analysis for detection and affinity workflows.
- Water-soluble amine-reactive reagent for labeling primary amines.
- Enables efficient labeling in aqueous buffers without organic solvents.
- Supports detection, pull-downs, and affinity purification workflows.
- High solubility in water and DMSO for flexible formulation.
- Stable when stored sealed and protected from moisture; follow datasheet handling.
- Available as a solid or as a pre-made DMSO solution for convenience.
Biotium Biotinylation Reagents Fluorescent Proteins Nucleotides Other Conjugates Biotin and Streptavidin Conjugates Biotin 1/EA
Biotin-cAMP diisopropylethylammonium salt is a biotin-conjugated cAMP analog thatcan be used to probe cAMP receptors ul liWhite lyophilized solid soluble in water Store at -20C and protect from light MW 826
Medchemexpress LLC Sulfo-Cy3-NHS disodium | 865.90 g/mol | C36H41N3Na2O13S3 | 10 MG
Sulfo-Cy3-NHS disodium is a water-soluble Cyanine3 (Cy3) derivative bearing an NHS ester for amine-reactive conjugation. The sulfonate groups increase aqueous solubility, making this reagent suitable for labeling proteins, peptides, and antibodies for fluorescence detection and imaging.
- Water-soluble NHS ester for efficient labeling of primary amines.
- Improved aqueous solubility due to sulfonate groups.
- Suitable for conjugation to proteins, antibodies, and peptides.
- Enables fluorescence detection and imaging applications.
- Stable solid form for routine laboratory handling and storage per manufacturer instructions.
Medchemexpress LLC Sulfo-Cyanine7 NHS ester potassium | 1603861-95-5 | 90.0% | 10 MG
Sulfo-Cyanine7 NHS ester potassium is a water-soluble, amine-reactive N-hydroxysuccinimide (NHS) ester of a near-infrared cyanine dye supplied as the potassium salt. It is used to label primary amines on proteins, peptides, and other biomolecules to produce sulfo-Cyanine7-labeled conjugates for near-IR fluorescence imaging and related research applications.
- Water-soluble near-infrared fluorescent dye.
- Amine-reactive NHS ester for efficient conjugation to proteins.
- Supplied as the potassium salt for enhanced solubility.
- Suitable for labeling proteins, peptides, and other biomolecules.
- Produces stable, near-IR fluorescent conjugates for imaging applications.
Medchemexpress LLC Sulfo-Cy7.5 NHS ester | 2736437-44-6 | 97.0% | 1104.29 g/mol | C49H48K3N3O16S4 | 10 MG
Sulfo-Cy7.5 NHS ester is a water-soluble, hydrophilic near-infrared cyanine dye functionalized as an N-hydroxysuccinimide (NHS) ester for covalent labeling of primary amines on proteins, peptides, and other biomolecules.
- Near-infrared, water-soluble cyanine dye suitable for NIR imaging and fluorescence labeling.
- Reactive NHS ester for efficient covalent coupling to primary amines under mild conditions.
- Reported molecular weight of 1104.29 g/mol for planning conjugation ratios.
- High reported purity suitable for research applications and labeling workflows.
- Available in small milligram pack sizes for pilot studies and labeling optimization.
- Store sealed, away from moisture and light to maintain stability.
Medchemexpress LLC Sulfo-TAG NHS ester (disodium) | 482618-42-8 | 88.4% | 1185.12 g/mol | C43H39N7Na2O16RuS4 | 1 MG
Sulfo-TAG NHS ester (disodium) is a water-soluble N-hydroxysuccinimide (NHS) ester reagent for covalent labeling of proteins and antibodies via primary amine groups. The reagent contains a ruthenium-based electrochemiluminescent tag that enables sensitive electrochemiluminescence (ECL) detection when conjugated to antibodies. Supplied as a solid for research use; handle and store according to the supplier's SDS and COA.
- Couples to primary amine groups on proteins and antibodies for stable conjugation.
- Enables electrochemiluminescence (ECL) detection when attached to antibodies.
- Water-soluble formulation suitable for aqueous conjugation reactions.
- Provided with storage recommendations to maintain stability.
- Supplied with certificate of analysis (COA) and safety data sheet (SDS) specifying purity and molecular data.
Medchemexpress LLC Sulfo-NHS-LC-LC-biotin | 194041-66-2 | 99.3% | 669.74 g/mol | C26H40N5NaO10S2 | 10 MG
Sulfo-NHS-LC-LC-Biotin is a water-soluble, amine-reactive biotinylation reagent that contains a sulfo-NHS ester joined to biotin via a long-chain spacer arm to reduce steric hindrance and improve labeling efficiency. It reacts selectively with primary amines to form stable amide bonds and is commonly used to label proteins on intact exosomes and cell surfaces.
- Water soluble sulfo-NHS ester for aqueous labeling.
- Long-chain spacer reduces steric hindrance and improves accessibility.
- Reacts selectively with primary amines to form stable amide bonds.
- Suitable for labeling proteins on intact exosomes and crowded surfaces.
- Provided as a small-quantity powder for convenient handling in research workflows.
Medchemexpress LLC Cy3 NHS ester | 1393363-07-9 | 99.24% | 590.15 | 25 MG
Cy3 NHS ester is a CY dye, which stands for Cyanine. Cyanine compounds are characterized by having two nitrogen atoms connected by an odd number of methyl units. These dyes are known for their long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility, and relatively simple synthesis. CY dyes are frequently used for labeling proteins, antibodies, and small molecular compounds. Labeling protein antibodies can be achieved through a straightforward mixing reaction.
- Long wavelength
- Adjustable absorption and emission
- High extinction coefficient
- Good water solubility
- Relatively simple synthesis
- Often used for labeling proteins, antibodies, and small molecular compounds
- Protein antibody labeling can be completed through a simple mixing reaction
IBA LifeSciences Biotin powder; 2 g
Biotin is a water-soluble B-complex vitamin, also known as vitamin B7 or vitamin H. It binds to the biotin-binding pockets of streptavidin, Strep-Tactin, and Strep-TactinXT with different affinities. As a result, it allows the efficient elution of Strep-tagII or Twin-Strep-tag fusion proteins from Strep-TactinXT, while maintaining the reusability of the resin. It can be used for preparation of Strep-TactinXT elution buffer, Buffer BXT. In addition, biotin can be used for elution of biotinylated proteins from Strep-Tactin, where it binds irreversibly to the resin. Hence, Strep-Tactin cannot be regenerated in this kind of application.
IBA LifeSciences Biotin powder; 5 g
Biotin is a water-soluble B-complex vitamin, also known as vitamin B7 or vitamin H. It binds to the biotin-binding pockets of streptavidin, Strep-Tactin, and Strep-TactinXT with different affinities. As a result, it allows the efficient elution of Strep-tagII or Twin-Strep-tag fusion proteins from Strep-TactinXT, while maintaining the reusability of the resin. It can be used for preparation of Strep-TactinXT elution buffer, Buffer BXT. In addition, biotin can be used for elution of biotinylated proteins from Strep-Tactin, where it binds irreversibly to the resin. Hence, Strep-Tactin cannot be regenerated in this kind of application.
Medchemexpress LLC Biotin-PEG5-NHS ester | 98.0% | 632.72 | 250 MG
Biotin-PEG5-NHS ester is a heterobifunctional crosslinker and a polyethylene glycol-containing bioconjugation reagent. It is utilized in scientific research for developing highly sensitive biosensors, targeted drug delivery systems, immunofluorescence imaging, and protein affinity purification, serving as a tool for precise biomolecule labeling and functionalization.
- Efficiently introduces biotin tags onto primary amine groups.
- Forms stable amide bonds under mild conditions.
- Incorporates a flexible spacer arm for increased molecular freedom.
- Enhances water solubility.
- Reduces non-specific adsorption.
Apexbio Technology LLC Sulfo-NHS-SS-11-Biotin 1g
Sulfo-NHS-SS-11-Biotin is an amine-reactive water-soluble biotinylation reagent containing an N-hydroxysulfosuccinimide (Sulfo-NHS) active ester group and a cleavable disulfide bond The Sulfo-NHS moiety reacts specifically with primary amines in proteins peptides or other biomolecules forming stable amide linkages This reagent introduces a disulfide-containing spacer arm enabling subsequent selective cleavage under reducing conditions for release of biotinylated molecules It is commonly employed in affinity chromatography immunoprecipitation experiments cell surface protein labeling and target identification allowing isolation purification or detection of biomolecules through streptavidin or avidin affinity interactions
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