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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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Search Within Results
Keyword Search:
871 – 885 of 1,267 results
871

Medchemexpress LLC PC biotin-PEG3-NHS ester | 2353409-93-3 | 840.89 | C36H52N6O15S | 10 MG
SDP

PC Biotin-PEG3-NHS ester is a cleavable 3-unit polyethylene glycol (PEG3) biotinylation reagent bearing an N-hydroxysuccinimide (NHS) active ester. It is used as a cleavable ADC linker and for biotinylation of primary amines in peptides, proteins, and other biomolecules to enable affinity capture or detection. The product is supplied as a solid and should be stored as a powder at -20°C; solutions have shorter storage lifetimes. Handle only by trained personnel for research use.

  • Cleavable PEG3 biotin linker for ADC conjugation and labeling
  • Reactive NHS ester for selective labeling of primary amines
  • Molecular weight 840.89 and formula C36H52N6O15S
  • Solid appearance; store powder at -20°C for long-term stability
  • Intended for laboratory research use only

ENCOMPASS_PREFERRED
872

Medchemexpress LLC N-Mal-N-bis(PEG2-NHS ester) | 2182601-73-4 | 98.9% | C29H38N4O15 | 25 MG
SDP

N-Mal-N-bis(PEG2-NHS ester) is a PEG-based PROTAC linker utilized in the synthesis of PROTACs. PROTACs employ two distinct ligands connected by a linker; one ligand targets an E3 ubiquitin ligase, and the other targets a specific protein. These compounds leverage the intracellular ubiquitin-proteasome system for selective degradation of target proteins. This product is for research use only.

  • PEG-based PROTAC linker
  • Supports synthesis of PROTACs
  • Exploits ubiquitin-proteasome system
  • Enables selective degradation of target proteins
  • Store at -20°C, protected from light and under nitrogen
  • Soluble in DMSO (100 mg/mL)

ENCOMPASS_PREFERRED
873

eMolecules​ 2353409-89-7 | Azido-PEG11-[4-(5-(1-hydroxyethyl)-2-methoxy-4-nitrophenoxy)-butanamide] | Broadpharm851.945 | C37H65N5O17 | 96.000 | COc1cc(c(cc1OCCCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])C(C)O)[N+]([O-])=O | 100mg | 445408999

Azido-PEG11-[4-(5-(1-hydroxyethyl)-2-methoxy-4-nitrophenoxy)-butanamide] | Broadpharm | 2353409-89-7851.945 | C37H65N5O17 | 96.000 | COc1cc(c(cc1OCCCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])C(C)O)[N+]([O-])=O | 100mg | 445408999

ENCOMPASS_PREFERRED
874

eMolecules​ 1688598-83-5 | NHS-PEG1-SS-PEG1-NHS | Ambeed436.410 | C14H16N2O10S2 | 97.000 | O=C(OCCSSCCOC(=O)ON1C(=O)CCC1=O)ON1C(=O)CCC1=O | 1g | 592288798

NHS-PEG1-SS-PEG1-NHS | Ambeed | 1688598-83-5436.410 | C14H16N2O10S2 | 97.000 | O=C(OCCSSCCOC(=O)ON1C(=O)CCC1=O)ON1C(=O)CCC1=O | 1g | 592288798

ENCOMPASS_PREFERRED
875

eMolecules​ 58-85-5 | D-(+)-Biotin | Apollo Scientific US | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 10g | 705605965

D-(+)-Biotin | Apollo Scientific US | 58-85-5 | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 10g | 705605965

ENCOMPASS_PREFERRED
876

BROADPHARM D BIOTIN 1G

NC3233751 D BIOTIN 1G

ENCOMPASS
877

MEDCHEMEXPRESS LLC BIOTIN NHS 100MG
SDP

501874592 BIOTIN NHS 100MG

ENCOMPASS_PREFERRED
878

MEDCHEMEXPRESS LLC IBRUTINIB-BIOTIN 5MG
SDP

501871690 IBRUTINIB-BIOTIN 5MG

ENCOMPASS_PREFERRED
879

Medchemexpress LLC (1R,8S,9S)-bicyclo[6.1.0]non-4-yn-9-ylmethyl 2,5-dioxopyrrolidin-1-yl carbonate. | 1426827-79-3 | MFCD19705416 | 99.5% | 291.30 g/mol | C15H17NO5 | 100 MG
SDP

Endo-BCN-NHS carbonate is a succinimidyl carbonate reagent that installs bicyclo[6.1.0]non-4-yn (BCN) handles onto primary amines, enabling strain-promoted azide-alkyne cycloaddition (SPAAC) for copper-free click crosslinking. It is used to functionalize proteins and elastin-like polymers for hydrogel formation and cell-encapsulation studies.

  • High purity (99.54%).
  • Molecular formula C15H17NO5, molecular weight 291.30 g/mol.
  • Reacts with primary amines to introduce BCN handles for SPAAC crosslinking.
  • Appearance: white to light yellow solid.
  • Recommended storage: powder at -20°C; in solvent: -80°C (6 months) or -20°C (1 month).
  • Available in multiple package sizes including 100 mg.

ENCOMPASS_PREFERRED
880

Medchemexpress LLC 2,5-pyrrolidinedione, 1,1'-[1,2-ethanediylbis[oxy(1-oxo-3,1-propanediyl)oxy]]bis- (9CI) | 65869-63-8 | 99.2% | 400.34 g/mol | C16H20N2O10 | 250 MG
SDP

Bis-PEG2-NHS ester is a noncleavable two-unit polyethylene glycol (PEG) linker bearing N-hydroxysuccinimide (NHS) ester reactive groups at both ends, designed for antibody-agent conjugation via amine-coupling chemistry for research use.

  • Noncleavable two-unit PEG linker for antibody-agent conjugation.
  • N-hydroxysuccinimide (NHS) ester reactive groups for amine coupling.
  • High purity, 99.2%.
  • Molecular weight 400.34 g/mol.
  • Soluble in DMSO at 100 mg/mL; ultrasonic agitation may be required.
  • Storage: powder at -20°C; in solvent -80°C for 6 months, -20°C for 1 month.
  • Available in multiple pack sizes, including 250 MG.

ENCOMPASS_PREFERRED
881

Medchemexpress LLC FP-Biotin | 259270-28-5 | 99.1% | 592.75 | 25 MG
SDP

FP-biotin is a potent organophosphorus toxicant, well-suited for searching for new biomarkers of organophosphorus toxicants exposure. It quantifies FAAH, ABHD6, and MAG-lipase activity. FP-biotin is also used for studies with plasma because biotinylated peptides are readily purified by binding to immobilized avidin beads. In vitro, it shows good reactivity with human acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), making it appropriate for identifying organophosphorus toxicants reactive proteins.

  • Potent organophosphorus toxicant
  • Suitable for identifying new biomarkers of organophosphorus toxicant exposure
  • Quantifies FAAH, ABHD6, and MAG-lipase activity
  • Used in plasma studies for easy purification of biotinylated peptides
  • Exhibits good reactivity with human AChE and BChE
  • Appropriate for identifying organophosphorus toxicant-reactive proteins

ENCOMPASS_PREFERRED
882

Medchemexpress LLC PD-L1 Mouse Biotin 100ug | 100ug
SDP

PD-L1 protein serves as a ligand for the inhibitory receptor PDCD1/PD-1 and is critical for maintaining immune tolerance This interaction modulates T cell activation limits effector responses and may stimulate IL10-producing T cell subsets PD-L1 Protein Mouse (Biotinylated HEK293 His) is the recombinant mouse-derived PD-L1 protein expressed by HEK293 with C-His labeled tag

ENCOMPASS_PREFERRED
883

eMolecules​ 756525-90-3 | m-PEG8-NHS ester | Ambeed | MFCD13184969 | 509.549 | C22H39NO12 | 98.000 | COCCOCCOCCOCCOCCOCCOCCOCCC(=O)ON1C(=O)CCC1=O | 1g | 714088005

m-PEG8-NHS ester | Ambeed | 756525-90-3 | MFCD13184969 | 509.549 | C22H39NO12 | 98.000 | COCCOCCOCCOCCOCCOCCOCCOCCC(=O)ON1C(=O)CCC1=O | 1g | 714088005

ENCOMPASS_PREFERRED
884

Medchemexpress LLC DOTA-NHS-ester | 170908-81-3 | MFCD23381190 | >97.0% | 501.49 | C20H31N5O10 | 500 MG
SDP

DOTA-NHS-ester is a bifunctional chelator containing a DOTA macrocycle and an N-hydroxysuccinimide (NHS) ester. It enables covalent conjugation to amine-containing biomolecules and subsequent radiometal chelation for imaging or radiotherapy research applications.

  • Bifunctional chelator with NHS-ester for amine conjugation.
  • High purity (≥97.0%) solid suitable for research.
  • Molecular weight 501.49 and formula C20H31N5O10.
  • Soluble in DMSO (50 mg/mL) and compatible with common in vivo formulations.
  • Store powder at -20°C; solutions at -80°C (6 months) or -20°C (1 month).
  • Available in a 500 mg pack size.

ENCOMPASS_PREFERRED
885

eMolecules​ 58-85-5 | D-Biotin | Chemodex Ltd. | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 5g | 482921470

D-Biotin | Chemodex Ltd. | 58-85-5 | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 5g | 482921470

ENCOMPASS_PREFERRED