Biotin and derivatives
Medchemexpress LLC L-biotin | 21788-37-4 | 99.7% | 244.31 g/mol | C10H16N2O3S | 10 MG
L-biotin is the unnatural enantiomer of biotin provided as a research-grade chemical standard for stereochemical studies and analytical applications. It is supplied with a certificate of analysis and a safety data sheet to support safe handling and quality verification.
- high reported purity suitable for analytical use
- available in small milligram pack sizes for research
- comes with COA and SDS documentation
- chemical formula C10H16N2O3S and molecular weight 244.31 g/mol
- intended for research use only; not for human use
Medchemexpress LLC Pentanediamide, N1-[4-[[4-[(3R)-3-[4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo... | 1599432-18-4 | MFCD30496724 | 99.7% | 1097.37 g/mol | C56H80N12O9S | 50 MG
Ibrutinib-biotin is a biotin-conjugated chemical probe derived from the BTK inhibitor ibrutinib. It features ibrutinib linked to biotin via a long-chain linker and is designed for target engagement, affinity pull-downs, and assay development directed at Bruton's tyrosine kinase (BTK).
- Biotin-conjugated probe for affinity capture and pull-down assays.
- Derived from a BTK inhibitor for target-specific engagement.
- Low-nanomolar potency against BTK (IC50 0.755-1.02 nM).
- High purity suitable for research applications (>99.6%).
- Available as solid material and as a 10 mM solution in DMSO.
- Molecular weight approximately 1,097.37 g/mol.
eMolecules 58-85-5 | D-(+)-Biotin | Apollo Scientific | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 562432212
D-(+)-Biotin | Apollo Scientific | 58-85-5 | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 562432212
Medchemexpress LLC L-biotin (unnatural enantiomer of biotin) | 21788-37-4 | MFCD22373639 | 99.5% | 244.31 g·mol⁻¹ | C10H16N2O3S | 1 ML
L-biotin is the unnatural enantiomer of biotin supplied as a research reagent. It binds streptavidin in vitro and is provided as a ready-to-use 10 mM solution in DMSO (1 mL) or as solid powder in multiple pack sizes. Recommended storage conditions are -20°C for powder, and -80°C for stock solutions (up to 6 months).
- Unnatural enantiomer of biotin
- Binds streptavidin in vitro
- Available as 10 mM DMSO solution or solid powder
- High purity (>99%)
- Soluble in DMSO at high concentration
- Powder storage: -20°C; stock solution storage: -80°C (6 months)
Medchemexpress LLC m-PEG1-NHS ester 250mg | 1027371-75-0 | 201.18 g/mol | C8H11NO5 | 250 MG
m-PEG1-NHS ester is a PEG/alkyl/ether-based N-hydroxysuccinimide (NHS) ester linker used for assembling proteolysis targeting chimeras (PROTACs) and for amine-directed bioconjugation. Supplied as a solid, it provides a short PEG spacer with an activated ester for efficient coupling in synthetic workflows.
- PEG/alkyl/ether-based linker for PROTAC synthesis.
- N-hydroxysuccinimide ester reactive toward primary amines.
- Molecular weight 201.18 g/mol.
- Chemical formula C8H11NO5.
- Purity 95.0%.
- Appearance white to light yellow solid.
- Storage: powder -20°C (3 years); in solvent -80°C (6 months), -20°C (1 month).
- Available package size 250 MG.
Medchemexpress LLC N-succinimidyl 4-(dimethylamino)benzoate | 58068-85-2 | MFCD16875522 | ≥98.0% | 262.3 g/mol | C13H14N2O4 | 100 MG
DMABA NHS ester (N-succinimidyl 4-(dimethylamino)benzoate, CAS 58068-85-2) is an NHS-ester reagent that reacts with primary amines to form stable amide bonds. It is commonly used to derivatize phosphatidylethanolamine and other amine-containing molecules to improve detection by mass spectrometry and chromatographic methods.
- Reacts with primary amines to form stable amide bonds.
- Enhances detectability of phosphatidylethanolamine by mass spectrometry.
- High purity suitable for analytical and derivatization workflows.
- Available in small milligram quantities for method development and optimization.
- Solid form simplifies storage and handling for laboratory use.
eMolecules 1353016-71-3 | Medchem Express | DBCO-NHS ester | 10mg | 515744338 | HY-42973 | MFCD24386367 | 402.406 | C23H18N2O5
Ambeed | tert-Butyl 10-bromodecanoate | 100mg | 603089553 | A944295 | 1644575-06-3 | 307.272 | C14H27BrO2
If you are unable to find the chemical you are looking for, make sure you are logged into your fishersci.com account and click on the following link:
eMolecules Building Block Tool<|a>
Medchemexpress LLC DBCO-NHS ester 2 100mg | 1384870-47-6 | 100 MG
DBCO-C6-NHS ester is a DBCO-derived N-hydroxysuccinimide (NHS) ester used to introduce a DBCO handle onto amine-containing molecules for copper-free, strain-promoted alkyne-azide cycloaddition (SPAAC) bioconjugation and antibody-drug conjugate (ADC) linker synthesis.
- Amine-reactive NHS ester for covalent coupling to primary and secondary amines.
- Facilitates copper-free SPAAC click chemistry with azide-functionalized partners.
- Suitable for bioconjugation, ADC synthesis, and labeling of proteins or small molecules.
- Available in multiple sizes; typical laboratory scale is 100 mg.
- Soluble in DMSO (~14.29 mg/mL); store powder at -20°C for long-term stability.