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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:
766 – 780 of 1,253 results
766

Medchemexpress LLC Azido-PEG6-NHS ester | 2055014-64-5 | 98.0% | 476.48 g/mol | C19H32N4O10 | 50 MG
SDP

Azido-PEG6-NHS ester is a cleavable six-unit polyethylene glycol (PEG) linker containing an azide and an N-hydroxysuccinimide (NHS) ester. It is used as a click-chemistry reagent for conjugation reactions and as a linker in antibody-drug conjugate and PROTAC synthesis.

  • Cleavable six-unit PEG linker for bioconjugation.
  • Azide group enables CuAAC and SPAAC click reactions.
  • NHS ester reacts with primary amines for efficient coupling.
  • Molecular weight 476.48 g/mol, formula C19H32N4O10.
  • Purity 98.0% and liquid form, colorless to light yellow.
  • Store pure material at -20°C; in solvent store at -80°C or -20°C as specified.
  • Available in small quantities such as 50 mg for lab-scale use.

ENCOMPASS_PREFERRED
767

Medchemexpress LLC Bis-PEG9-NHS ester 250mg | 1008402-79-6 | 250 MG
SDP

Bis-PEG9-NHS ester is a homobifunctional polyethylene glycol (PEG) linker bearing two N-hydroxysuccinimide (NHS) ester reactive groups, used for amine-directed bioconjugation in the synthesis of PROTACs and antibody-drug conjugates. The PEG9 spacer increases hydrophilicity to improve solubility and reduce steric hindrance during conjugation.

  • Contains two NHS ester reactive groups for amine coupling.
  • PEG9 spacer increases hydrophilicity and solubility in aqueous media.
  • High purity (≥98.0%) suitable for research and conjugation chemistry.
  • Molecular weight 708.71 g/mol and chemical formula C30H48N2O17.
  • Viscous, colorless to light yellow appearance for easy handling.
  • Applicable to protein labeling, bioconjugation, and linker synthesis.

ENCOMPASS_PREFERRED
768

Medchemexpress LLC Mal-PEG8-NHS ester | 2055033-05-9 | 99.0% | 1 G
SDP

Mal-PEG8-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. They exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.

  • PEG-based PROTAC linker
  • Used in the synthesis of PROTACs
  • Exploits the intracellular ubiquitin-proteasome system
  • Selectively degrades target proteins
  • Molecular weight: 618.63
  • Molecular formula: C27H42N2O14
  • Purity: 98.96%
  • Appearance: Colorless to light yellow viscous liquid
  • Soluble in DMSO: ≥ 100 mg/mL

ENCOMPASS_PREFERRED
769

Medchemexpress LLC Biotin-PEG-thiol (MW 2000) | 98.0% | 2000 (Average) | 100 MG
SDP

Biotin-PEG-Thiol (MW 2000) is an active compound. It is pegylated by binding to streptavidin or antibiotin with high affinity and specificity, allowing it to modify biomolecules, proteins, peptides, and other small molecule materials. This compound is widely used in the research of agent release and nano new materials.

  • Purity: 98.0%
  • Molecular weight: 2000 (Average)
  • Target: Fluorescent dye
  • Pathway: Others
  • In vitro solubility: DMSO: 125 mg/mL (Need ultrasonic)
  • Storage conditions: -20°C, protect from light, stored under nitrogen. In solvent: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen).

ENCOMPASS_PREFERRED
770

Medchemexpress LLC Fmoc-PEG1-CH2CH2-NHS | 1G
SDP

Fmoc-PEG1-CH2CH2-NHS | 1G

ENCOMPASS_PREFERRED
771

Apexbio Technology LLC NHS-SS-11-Biotin(Synonyms: Sulfo-NHS-SS-Biotin, EZ-Link NHS-SS-Biotin, NHS-SS-D-Biotin, N-Hydroxysuccinimidyl-SS-Biotin), 10mg, CAS: 142439-92-7.

NHS-SS-11-Biotin (CAS 142439-92-7) is an amine-reactive biotinylation reagent commonly used in biochemical research Structurally it possesses an N-hydroxysuccinimide (NHS) ester group that covalently reacts with primary amines of target proteins or biomolecules forming stable amide bonds and releasing sulfo-NHS This reagent features a cleavable disulfide linker and an extended spacer arm of approximately 24 3 enhancing probe accessibility to avidin or streptavidin conjugates It is utilized extensively for reversible biotinylation affinity purification or labeling studies in proteomics and cell biology applications

ENCOMPASS_PREFERRED
772

Apexbio Technology LLC NHS-SS-11-Biotin(Synonyms: Sulfo-NHS-SS-Biotin, EZ-Link NHS-SS-Biotin, NHS-SS-D-Biotin, N-Hydroxysuccinimidyl-SS-Biotin), 25mg, CAS: 142439-92-7.

NHS-SS-11-Biotin (CAS 142439-92-7) is an amine-reactive biotinylation reagent commonly used in biochemical research Structurally it possesses an N-hydroxysuccinimide (NHS) ester group that covalently reacts with primary amines of target proteins or biomolecules forming stable amide bonds and releasing sulfo-NHS This reagent features a cleavable disulfide linker and an extended spacer arm of approximately 24 3 enhancing probe accessibility to avidin or streptavidin conjugates It is utilized extensively for reversible biotinylation affinity purification or labeling studies in proteomics and cell biology applications

ENCOMPASS_PREFERRED
773

Medchemexpress LLC AMT-NHS | 2925268-86-4 | 98.7% | 443.47 | 25 MG
SDP

AMT-NHS is an RNA-protein crosslinker, composed of a psoralen derivative and an N-hydroxysuccinimide ester group. These groups react with RNA bases and primary amines of protein, respectively.

  • Can penetrate into living yeast cells
  • Crosslinks Cbf5 to H/ACA snoRNAs with high specificity
  • Induces different crosslinking patterns
  • Targets both single- and double-stranded regions of RNA
  • Used for capturing diverse RNA-protein interactions in cells

ENCOMPASS_PREFERRED
774

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
775

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
776

Medchemexpress LLC m-PEG11-acid | 2280998-74-3 | 98.0% | 544.63 | C24H48O13 | 100 MG
SDP

m-PEG11-acid is a monomethyl-capped polyethylene glycol (PEG) linker containing 11 ethylene glycol units. It is supplied as a non-cleavable, hydrophilic spacer for use in antibody-drug conjugate (ADC) synthesis and proteolysis-targeting chimera (PROTAC) linker construction.

  • Monomethyl-capped polyethylene glycol linker with 11 ethylene glycol units.
  • Non-cleavable design suitable for stable conjugation.
  • Provides a hydrophilic spacer to improve solubility and reduce steric hindrance.
  • Commonly used in ADC and PROTAC linker synthesis.
  • Molecular weight approximately 544.63 g/mol.
  • High purity, specified at 98.0%.
  • Available in small-scale packaging suitable for research (100 MG).

ENCOMPASS_PREFERRED
777

eMolecules​ 2428400-08-0 | Amino-PEG11-t-butyl ester | Broadpharm629.785 | C29H59NO13 | 97.000 | CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN | 1g | 603111796

Amino-PEG11-t-butyl ester | Broadpharm | 2428400-08-0629.785 | C29H59NO13 | 97.000 | CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN | 1g | 603111796

ENCOMPASS_PREFERRED
778

eMolecules​ 58-85-5 | D-Biotin | Oakwood Chemicals | MFCD00005541 | 244.310 | C10H16N2O3S | 99.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 480169793

D-Biotin | Oakwood Chemicals | 58-85-5 | MFCD00005541 | 244.310 | C10H16N2O3S | 99.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 480169793

ENCOMPASS_PREFERRED
779

eMolecules​ 943858-70-6 | N3-C3-NHS ester | TargetMol | MFCD22573606 | 226.192 | C8H10N4O4 | 0.000 | [N-]=[N+]=NCCCC(=O)ON1C(=O)CCC1=O | 50mg | 799230478

N3-C3-NHS ester | TargetMol | 943858-70-6 | MFCD22573606 | 226.192 | C8H10N4O4 | 0.000 | [N-]=[N+]=NCCCC(=O)ON1C(=O)CCC1=O | 50mg | 799230478

ENCOMPASS_PREFERRED
780

Medchemexpress LLC Aeide-C1-NHS ester | 824426-32-6 | 98.0% | C6H6N4O4 | 50 MG
SDP

Aeide-C1-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs. It is a click chemistry reagent, containing an Azide group, and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

  • Alkyl/ether-based PROTAC linker
  • Used in the synthesis of PROTACs
  • Click chemistry reagent
  • Contains an azide group
  • Undergoes copper-catalyzed azide-alkyne cycloaddition (CuAAc) with alkyne-containing molecules
  • Undergoes strain-promoted alkyne-azide cycloaddition (SPAAC) with DBCO or BCN groups

ENCOMPASS_PREFERRED