Organometallic Compounds
Medchemexpress LLC NH-bis(C2-PEG1-azide) | 2100306-81-6 | C8H17N7O2 | 250 MG
NH-bis(C2-PEG1-azide) is a PEG-based PROTAC linker used in the synthesis of PROTACs. It functions as a click chemistry reagent with an azide group, allowing it to participate in copper-catalyzed azide-alkyne cycloaddition (CuAAc) reactions and strain-promoted alkyne-azide cycloaddition (SPAAC) reactions.
- PEG-based PROTAC linker
- Used in the synthesis of PROTACs
- Functions as a click chemistry reagent
- Contains an azide group
- Undergoes copper-catalyzed azide-alkyne cycloaddition (CuAAc) with alkyne-containing molecules
- Participates in strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with DBCO or BCN groups
Medchemexpress LLC Heparin methacrylate | 10 MG
Heparin methacrylate (HepMA) is a methacrylated heparin polymer used as a tissue engineering scaffold and 3D printing bioink. It crosslinks under photoinitiation to form fibrous hydrogels that present bioactive adhesion sites, support cell attachment and growth, and enable biodegradable scaffolds for cell culture and tissue engineering research.
- Methacrylated heparin polymer suitable for scaffold and bioink applications.
- Crosslinks with photoinitiators to form stable hydrogels.
- Presents bioactive adhesion sites to support cell interaction.
- White to off-white solid formulation for lab handling.
- Available in small research packages (e.g., 10 mg) with COA and SDS documentation.
- Store as powder at recommended cold temperatures to preserve stability.
![Medchemexpress LLC Ethanol, 2-[2-(2-hydroxyethoxy)ethoxy]-, 1-(4-methylbenzenesulfonate) | 77544-68-4 | 97.0% | 304.36 | 25 G](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000403297-logo.png-250.jpg){kind=logo}
Medchemexpress LLC Ethanol, 2-[2-(2-hydroxyethoxy)ethoxy]-, 1-(4-methylbenzenesulfonate) | 77544-68-4 | 97.0% | 304.36 | 25 G
Tos-PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. It can also be used for the synthesis of 3'-aminooxy oligonucleotides solid supports.
- Peg-based protac linker in the synthesis of protacs.
- Used for the synthesis of 3'-aminooxy oligonucleotides solid supports.
Medchemexpress LLC 2-(2-(2-((6-chlorohexyl)oxy)ethoxy)ethoxy)ethan-1-ol | 1355955-95-1 | MFCD32705069 | 95.0% | 268.78 g/mol | C12H25ClO4 | 250 MG
HO-PEG3-(CH2)6-Cl is a hydroxy-terminated PEG3 linker bearing a six-carbon chlorinated alkyl chain, used as a building block in PROTAC and bioconjugation chemistry. It serves as a flexible, hydrophilic spacer for attaching ligands, tags, or warheads during linker assembly and small-scale synthesis.
- Polyethylene glycol (PEG3) spacer with terminal hydroxy and six-carbon chloride.
- Designed for PROTAC linker assembly and bioconjugation.
- Flexible and hydrophilic to improve solubility and spacing between functional groups.
- Supplied in research-scale packs suitable for method development and small-scale synthesis.
- Molecular formula C12H25ClO4; molecular weight 268.78 g/mol.
- CAS number 1355955-95-1; supplier-reported purity typically 95%.
Medchemexpress LLC 3-(trimethylsilyl)propanoic acid-d4 sodium | 24493-21-8 | MFCD00002762 | 98.0% | 172.27 | C6H9D4NaO2Si | 10 MG
3-(Trimethylsilyl)propanoic acid-d4 sodium is the deuterium-labeled sodium salt used as an internal standard and tracer in analytical chemistry. It provides a stable reference signal for NMR spectroscopy and is also suitable for quantitative analyses by GC-MS and LC-MS, with high isotopic enrichment and purity.
- Deuterium-labeled sodium salt suitable as an internal standard for 1H NMR.
- Water- and deuterium oxide-soluble reference for reliable chemical shift calibration.
- High isotopic enrichment and 98.0% purity support accurate quantitative analysis.
- Applicable as a tracer in GC-MS and LC-MS workflows.
- Supplied in small, accurately weighed packages for analytical use.
Apexbio Technology LLC Pancuronium dibromide 15500-66-0 10mM (in 1mL DMSO)
Pancuronium dibromide (CAS 15500-66-0) is a small molecule that acts as a competitive antagonist at nicotinic acetylcholine receptors (AChRs) blocking neuromuscular transmission by displacing acetylcholine from its binding sites on the motor end-plate This action results in skeletal muscle relaxation characterized by dose-dependent neuromuscular blockade With an IC50 value of approximately 5 5 nM pancuronium dibromide serves as a potent pharmacological tool for studying cholinergic receptor function neuromuscular signaling pathways and muscle physiology in biomedical research
Medchemexpress LLC Sitafloxacin hydrate | 163253-35-8 | MFCD11046360 | 99.9% | 50 MG
Sitafloxacin hydrate (DU6859a) is an orally active fluoroquinolone antibiotic demonstrating broad-spectrum in vitro activity. It is effective against a diverse range of Gram-positive and -negative bacteria, including anaerobic bacteria and atypical pathogens. This compound is utilized in the study of respiratory tract and urinary tract infections. It is intended for research use only and not for patient consumption. The product presents as a white to off-white solid.
- Orally active fluoroquinolone antibiotic
- Broad-spectrum in vitro activity
- Effective against Gram-positive and -negative bacteria
- Active against anaerobic bacteria
- Effective against atypical pathogens
- Used in the study of respiratory tract infections
- Used in the study of urinary tract infections
- Appears as a white to off-white solid
(C)O[Si](C)(C)C | 10g | 480102172](https://assets.fishersci.com/TFS-Assets/CCG/product-images/NC2220651.JPG-250.jpg)
eMolecules 107-46-0 | Hexamethyldisiloxane | Oakwood Chemicals | MFCD00008265 | 162.379 | C6H18OSi2 | 98.000 | C[Si](C)(C)O[Si](C)(C)C | 10g | 480102172
Hexamethyldisiloxane | Oakwood Chemicals | 107-46-0 | MFCD00008265 | 162.379 | C6H18OSi2 | 98.000 | C[Si](C)(C)O[Si](C)(C)C | 10g | 480102172
(=O)C(F)(F)F)(C(C)C)C(C)C | 1kg | 480108686](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000130616.jpg-250.jpg)
eMolecules 80522-42-5 | Triisopropylsilyl trifluoromethanesulfonate | Oakwood Chemicals | MFCD00009913 | 306.420 | C10H21F3O3SSi | 98.000 | CC(C)[Si](OS(=O)(=O)C(F)(F)F)(C(C)C)C(C)C | 1kg | 480108686
Triisopropylsilyl trifluoromethanesulfonate | Oakwood Chemicals | 80522-42-5 | MFCD00009913 | 306.420 | C10H21F3O3SSi | 98.000 | CC(C)[Si](OS(=O)(=O)C(F)(F)F)(C(C)C)C(C)C | 1kg | 480108686
Medchemexpress LLC Dbco-peg3-acid | 2754384-59-1 | 98.35% | 508.56 | 50 MG
DBCO-PEG3-acid is a non-cleavable 3 unit PEG ADC linker utilized in the synthesis of antibody-drug conjugates (ADCs). It features a DBCO group, which facilitates strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.
- Non-cleavable 3 unit PEG ADC linker.
- Used in the synthesis of antibody-drug conjugates (ADCs).
- Contains a DBCO group.
- Undergoes strain-promoted alkyne-azide cycloaddition (SPAAC) with azide groups.
Medchemexpress LLC 2-(2-(2-((6-chlorohexyl)oxy)ethoxy)ethoxy)ethan-1-ol | 1355955-95-1 | MFCD32705069 | 268.78 g·mol^-1 | C12H25ClO4 | 100 MG
HO-PEG3-(CH2)6-Cl (2-(2-(2-((6-chlorohexyl)oxy)ethoxy)ethoxy)ethan-1-ol) is a hydroxy-terminated PEG3 linker bearing a 6-chlorohexyl reactive handle. It is used as a flexible, hydrophilic spacer in the synthesis of PROTACs and Halo-tag targeting conjugates, enabling attachment between target-binding ligands and recruitment motifs.
- Hydroxy-terminated PEG3 spacer with a 6-chlorohexyl functional group.
- Molecular formula C12H25ClO4; molecular weight 268.78 g·mol^-1.
- Designed for use in PROTAC and Halo-tag conjugate synthesis.
- Available in multiple pack sizes including 100 MG.
- Analytical documentation available on request (CoA, H NMR, SDS).
Medchemexpress LLC Acetic acid, 2-(2,4-dichlorophenoxy)-, isooctyl ester | 25168-26-7 | 97.2% | 250 MG
2,4-D isooctyl ester is a selective herbicide belonging to the chlorophenoxy compound class. It is characterized by a higher boiling point, low volatility, and low drift, making it effective for controlling broadleaf weeds in various settings such as crops, lawns, and forests. This product is for research use only.
- Selective herbicide
- Chlorophenoxy compound
- Higher boiling point, low volatility, and low drift
- Controls broadleaf weeds
- Suitable for use in crops, lawns, and forests
- Purity: 97.17%
- Molecular formula: C16H22Cl2O3
- Molecular weight: 333.25
- Appearance: Colorless to light yellow liquid
- Soluble in DMSO (≥ 175 mg/mL)
Medchemexpress LLC Azido-PEG3-SS-PEG3-azide | 1310827-27-0 | 99.3% | 468.59 | 50 MG
Azido-PEG3-SS-PEG3-azide is a PEG-based PROTAC linker designed for use in the synthesis of PROTACs. This compound functions as a click chemistry reagent, featuring an Azide group that can participate in copper-catalyzed azide-alkyne cycloaddition (CuAAc) reactions with molecules containing Alkyne groups. Additionally, it can engage in strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups. PROTACs themselves are agents that utilize the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
- A PEG-based PROTAC linker.
- Used in the synthesis of PROTACs.
- Functions as a click chemistry reagent.
- Contains an Azide group.
- Can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) reactions with Alkyne-containing molecules.
- Can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with DBCO or BCN-containing molecules.
Medchemexpress LLC (S)-1-(4-(Trifluoromethoxy)phenyl)ethanamine | 951247-75-9 | 99.37% | 205.18 | 500 MG
(S)-1-(4-(Trifluoromethoxy)phenyl)ethanamine is a drug intermediate for the synthesis of various active compounds. It is for research use only and not sold to patients.
- Molecular weight: 205.18
- Formula: C9H10F3NO
- Appearance: Solid-liquid mixture
- Color: Colorless to off-white
- SMILES: FC(F)(F)OC1=CC=C([C@H](C)N)C=C1
- Purity: 99.37%
- Available documents: Data sheet, COA, SDS, HNMR, LCMS, handling instructions
- Shipping: Room temperature in continental US; may vary elsewhere
- Storage: 4°C, stored under nitrogen. In solvent: -80°C, 6 months; -20°C, 1 month (stored under nitrogen).
Medchemexpress LLC N-(Aminooxy-PEG3)-N-bis(PEG4-Boc) | 2112737-19-4 | > 96% | C38H76N2O16 | 100 MG
N-(Aminooxy-PEG3)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be utilized in the synthesis of PROTACs. PROTACs consist of two distinct ligands connected by a linker, with one ligand targeting an E3 ubiquitin ligase and the other targeting a specific protein. These molecules function by exploiting the intracellular ubiquitin-proteasome system to selectively degrade target proteins. This product is for research use only and not sold to patients.
- Peg-based PROTAC linker
- Utilized in the synthesis of PROTACs
- Exploits the intracellular ubiquitin-proteasome system
- Selectively degrades target proteins