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Biotin and derivatives

Organic heterocyclic compounds and derivatives that consist of a ureido ring and a tetrahydrothiophene ring; ureido contains the radical: NH2CONH−, and tetrahydrothiophene is a five-membered ring consisting of four carbon atoms and a sulfur atom.
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Keyword Search:
1,051 – 1,065 of 1,267 results
1,051

Medchemexpress LLC 1H-thieno[3,4-d]imidazole-4-pentanamide, N-(26-azido-3,6,9,12,15,18,21,24-octaoxahexacos-1-yl) | 2363756-34-5 | 98.8% | 664.81 g/mol | C28H52N6O10S | 100 MG
SDP

Biotin-PEG8-azide is a biotin-labeled polyethylene glycol (PEG8) linker with a terminal azide group used for biotinylation of macromolecules via azide-alkyne cycloaddition (click chemistry). It enables efficient conjugation for affinity capture, detection, or immobilization in biochemical assays.

  • Provides a PEG8 spacer to improve solubility and reduce steric hindrance.
  • Contains a terminal azide for copper-catalyzed or strain-promoted click reactions.
  • Facilitates biotin labeling for high-affinity capture with streptavidin or avidin reagents.
  • High purity (98.8%) suitable for research applications.
  • Off-white to light yellow oil with storage recommendations for long-term stability.

ENCOMPASS_PREFERRED
1,052

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

ENCOMPASS_PREFERRED
1,053

Medchemexpress LLC IL-15 Human Biotin 50ug | 50ug
SDP

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

ENCOMPASS_PREFERRED
1,054

eMolecules​ 1800414-71-4 | Azido-PEG11-amine | Broadpharm | MFCD08274605 | 570.681 | C24H50N4O11 | 98.000 | NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 1g | 296213760

Azido-PEG11-amine | Broadpharm | 1800414-71-4 | MFCD08274605 | 570.681 | C24H50N4O11 | 98.000 | NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 1g | 296213760

ENCOMPASS_PREFERRED
1,055

Medchemexpress LLC Gggyk-biotin | >99.75% | 706.81 | 5 MG
SDP

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.

ENCOMPASS_PREFERRED
1,056

Medchemexpress LLC Biotin methyl ester 500mg
SDP

Biotin methyl ester is a biochemical reagent that can be used as a biological material or organic compound for life science related research

ENCOMPASS_PREFERRED
1,057

Medchemexpress LLC DBCO-biotin | 1418217-95-4 | MFCD22380751 | 98.5% | 502.63 g·mol⁻1 | C28H30N4O3S | 10MG
SDP

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.

ENCOMPASS_PREFERRED
1,058

Medchemexpress LLC Biotin-ATRA-conjugate | 2226143-93-5 | 98.4% | C36H55N3O4S | 10MG
SDP

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.

ENCOMPASS_PREFERRED
1,059

Medchemexpress LLC Bis-SS-C3-NHS ester | 98604-88-7 | 98.0% | 432.47 g·mol⁻¹ | C16H20N2O8S2 | 5 MG
SDP

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

ENCOMPASS_PREFERRED
1,060

Medchemexpress LLC Biotin-α-Hypophamine | 99.3% | 1233.48 | 5 MG
SDP

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

ENCOMPASS_PREFERRED
1,061

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)

ENCOMPASS_PREFERRED
1,062

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
SDP

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

ENCOMPASS_PREFERRED
1,063

Medchemexpress LLC Biotin-LC-LC-NHS | 89889-52-1 | 98.0% | 567.70 g/mol | C26H41N5O7S | 100 MG
SDP

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.

ENCOMPASS_PREFERRED
1,064

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

ENCOMPASS_PREFERRED
1,065

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

ENCOMPASS_PREFERRED