Phenylcarbamic acid esters
![Medchemexpress LLC Propanoic acid, 3,3'-[(2-amino-1,3-propanediyl)bis(oxy)]bis-, 1,1'-bis(1,1-dimethylethyl) ester | 2171072-53-8 | 99.7% | C17H33NO6 | 250 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/default.jpg-250.jpg)
Medchemexpress LLC Propanoic acid, 3,3'-[(2-amino-1,3-propanediyl)bis(oxy)]bis-, 1,1'-bis(1,1-dimethylethyl) ester | 2171072-53-8 | 99.7% | C17H33NO6 | 250 MG
NH-bis(C1-PEG1-Boc) is an alkyl/ether-based PROTAC linker used in the synthesis of PROTACs. This compound is a key component in creating PROTACs, which are molecules designed to selectively degrade target proteins within a cell.
- Alkyl/ether-based PROTAC linker
- Used in the synthesis of PROTACs
- PROTACs contain two different ligands connected by a linker
- Exploits the intracellular ubiquitin-proteasome system to selectively degrade target proteins
Medchemexpress LLC N-Desmethyl citalopram-d4 oxalate | 2747915-54-2 | C21H17D4FN2O5 | 1 MG
N-Desmethyl citalopram-d4 (oxalate) is a deuterium-labeled N-Desmethyl citalopram oxalate. It can be utilized as a tracer or internal standard for quantitative analysis using techniques such as NMR, GC-MS, or LC-MS. Stable heavy isotopes, like deuterium, are incorporated into drug molecules to aid quantitation during drug development and can influence pharmacokinetic and metabolic profiles.
- Can be used as a tracer.
- Serves as an internal standard for quantitative analysis (NMR, GC-MS, LC-MS).
- Features stable heavy isotopes for drug development quantitation.
- Potential to influence pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Benzyl N6-(t-Boc)-L-lysinate | 133170-57-7 | MFCD11045868 | 97.5% | 372.89 g/mol | C18H29ClN2O4 | 50 G
Benzyl N6-(t-Boc)-L-lysinate is a Boc-protected L-lysine derivative supplied for use in organic synthesis and life-science research, commonly used as a protected amino acid building block in peptide synthesis and related synthetic applications.
- Used as a protected amino acid building block in peptide synthesis.
- Boc-protected lysine derivative suitable for organic synthesis.
- Available in solid form with reported purity of 97.49%.
- CAS number 133170-57-7 for chemical identification.
- Store at room temperature, keep dry and cool; in solution: -80°C (2 years), -20°C (1 year).
Medchemexpress LLC Benzyl N6-(t-Boc)-L-lysinate | 133170-57-7 | MFCD11045868 | 97.5% | 372.89 | C18H29ClN2O4 | 10 G
Benzyl N6-(t-Boc)-L-lysinate is a Boc-protected benzyl derivative of L-lysine used as a reagent and building block in peptide synthesis and organic chemistry research. It is supplied for laboratory research use only; handle according to standard safety procedures.
- Boc-protected lysine derivative.
- Cas 133170-57-7.
- Molecular formula C18H29ClN2O4.
- Molecular weight 372.89.
- Purity approximately 97.5% (LCMS).
- Storage: store dry at room temperature; in solvent store -80°C (2 years) or -20°C (1 year).
Medchemexpress LLC Psme3 protein, human (N-His) | 1 MG
Recombinant human PSME3 protein with an N-terminal His tag, supplied as a 0.22 μm filtered solution in 50 mM Tris, 200 mM NaCl, 40% glycerol (pH 8.0). Expressed in E. coli, this reagent is intended for biochemical and cell biology research into proteasome regulation and protein-protein interactions, including studies of MDM2-p53. Store at -80°C and avoid repeated freeze-thaw cycles.
- Recombinant human protein with N-terminal His tag.
- Expressed in E. coli for in vitro research applications.
- Supplied as filtered glycerol solution in Tris/NaCl, pH 8.0.
- Molecular weight approximately 28-33 kDa.
- Stable at -80°C for long-term storage; aliquot recommended to avoid freeze-thaw.
- Enzyme activity testing in progress; activity not guaranteed.
Medchemexpress LLC N-Boc-N-bis(C2-PEG1-azide) | 2100306-79-2 | 25 MG
N-Boc-N-bis(C2-PEG1-azide) | 2100306-79-2 | 25 MG
Medchemexpress LLC Boc-NH-PEG4 | 106984-09-2 | MFCD07779195 | 99.5% | 293.36 | C13H27NO6 | 5 G
Boc-NH-PEG4 is a Boc-protected polyethylene glycol (PEG4) linker used as a spacer in PROTAC, ADC, and other bioconjugation syntheses. It provides a four-unit PEG spacer with a Boc-protected amino terminus that enables orthogonal deprotection and downstream functionalization. The material is supplied as a colorless to light yellow liquid and is suitable as a building block in small-molecule conjugates.
- Four-unit PEG spacer for controlled linker length.
- Boc-protected amino terminus enables orthogonal deprotection and diversification.
- High purity suitable for synthetic applications (about 99.5%).
- Liquid form simplifies handling and dosing.
- Recommended storage at -20°C to preserve stability.
- Compatible with common coupling chemistries for conjugation workflows.
Medchemexpress LLC N-(PEG2-Boc)-N-bis(PEG2-propargyl) | 2100306-69-0 | 485.61 | 25 MG
N-(PEG2-Boc)-N-bis(PEG2-propargyl) is a PEG-based PROTAC linker used in the synthesis of PROTACs. It functions as a click chemistry reagent, possessing an Alkyne group that can engage in copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. PROTACs utilize the intracellular ubiquitin-proteasome system to selectively degrade target proteins. This product is intended for research use only.
- PEG-based PROTAC linker
- Click chemistry reagent
- Contains an Alkyne group for CuAAc reactions
- Utilizes the ubiquitin-proteasome system
- Selectively degrades target proteins
- Intended for research use only
Medchemexpress LLC Boc-aminooxy-amide-PEG4-propargyl | 2253965-01-2 | 404.46 g/mol | C18H32N2O8 | 100 MG
Boc-aminooxy-amide-PEG4-propargyl is a Boc-protected aminooxy-containing PEG4 linker with a propargyl (alkyne) terminus. It is described as a non-cleavable, 4-unit PEG ADC linker used in conjugation and click chemistry applications.
- Non-cleavable 4-unit PEG linker.
- Contains Boc-protected aminooxy and propargyl (alkyne) functional groups.
- Enables copper-catalyzed azide-alkyne cycloaddition (CuAAC) click reactions.
- Suitable for antibody-drug conjugate (ADC) synthesis and general bioconjugation.
- Available in small research pack sizes for synthetic applications.
Medchemexpress LLC N-hydroxysulfosuccinimide sodium | 106627-54-7 | MFCD00043100 | 100.0% | 217.13 g/mol | C4H4NNaO6S | 10 G
N-hydroxysulfosuccinimide sodium is a water-soluble N-hydroxysuccinimide derivative used to activate carboxyl groups for conjugation to primary amines, enabling formation of stable amide bonds for bioconjugation and linker synthesis. It is supplied as a solid and in solution forms for research applications.
- Water-soluble activated ester for amine coupling.
- Reacts with carboxyl groups to form stable amide bonds.
- Commonly used in protein and peptide bioconjugation.
- Available in multiple pack sizes, including 10 g.
- High purity suitable for research applications.
Medchemexpress LLC Boc-aminooxy-amide-PEG4-propargyl | 2253965-01-2 | 404.46 g/mol | C18H32N2O8 | 250 MG
Boc-aminooxy-amide-PEG4-propargyl is a Boc-protected aminooxy-containing 4-unit PEG linker used as a non-cleavable ADC linker and for bioconjugation. It provides an aminooxy functionality for oxime ligation and a propargyl (alkyne) handle for copper-catalyzed azide-alkyne cycloaddition (click chemistry).
- Non-cleavable 4-unit PEG linker
- Provides aminooxy functionality for oxime ligation
- Provides propargyl (alkyne) handle for click chemistry
- Suitable for ADC linker synthesis and bioconjugation
- Available in multiple pack sizes for synthesis workflows