Pyrrolidines
N-Succinimidyl 4-Nitrophenylacetate 98.0+%, TCI America™
CAS: 68123-33-1 Molecular Formula: C12H10N2O6 Molecular Weight (g/mol): 278.22 MDL Number: MFCD00047124 InChI Key: JUEAHIVORWVODA-UHFFFAOYSA-N Synonym: N-(4-Nitrophenylacetoxy)succinimide PubChem CID: 100796 IUPAC Name: 2,5-dioxopyrrolidin-1-yl 2-(4-nitrophenyl)acetate SMILES: [O-][N+](=O)C1=CC=C(CC(=O)ON2C(=O)CCC2=O)C=C1
Revvity Health Sciences Inc HTRF Anti-Europium TBP Maleimide Labeling Reagent, 1 mg
HTRF Anti-Europium TBP Maleimide Labeling Reagent, 1 mg
Revvity Health Sciences Inc HTRF Anti-Europium TBP Maleimide Labeling Reagent, 100 µg
HTRF Anti-Europium TBP Maleimide Labeling Reagent, 100 µg
Medchemexpress LLC Sulfo-Cy3 maleimide potassium | 1656990-68-9 | 93.35% | 776.96 | 1 MG
Sulfo-Cy3 maleimide potassium is a fluorescent dye featuring a maleimide functionality at the end of a short alkyl linker. It can be utilized for labeling antibodies and other labile proteins.
- Fluorescent dye
- Maleimide functionality
- Used for labeling antibodies
- Used for labeling labile proteins
Medchemexpress LLC Cy5 maleimide | 1437796-65-0 | 98.0% | 641.24 | 50 MG
Cy5 maleimide is a CY dye, a type of Cyanine compound characterized by two nitrogen atoms connected by an odd number of methyl units. These dyes are known for their long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility, and relatively simple synthesis. It is commonly utilized for the labeling of proteins, antibodies, and small molecular compounds, offering a straightforward mixing reaction for protein antibody labeling.
- Long wavelength
- Adjustable absorption and emission
- High extinction coefficient
- Good water solubility
- Relatively simple synthesis
- Used for labeling proteins
- Used for labeling antibodies
- Used for labeling small molecular compounds
Innovative Research Inc Ms PAI1 Rcmb Act Btn lbl 500ug
Mouse PAI-1 Recombinant Active Biotin Labeled 500 ug -
Cayman Chemical 4-carboxy TEMPO 500mg
A spin label; reacts with ROS to monitor ROS production in vivo using ESR spectroscopy
![Medchemexpress LLC 4-[1-(4-hydroxyphenyl)cyclohexyl]phenol | MFCD00019341 | >98.0% | 280.26 | C18H20O2 (13C12) | 1mg](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000269473.png-250.jpg)
Medchemexpress LLC 4-[1-(4-hydroxyphenyl)cyclohexyl]phenol | MFCD00019341 | >98.0% | 280.26 | C18H20O2 (13C12) | 1mg
Bisphenol Z-13C12 is the 13C labeled isotope of Bisphenol Z-13C12 (HY-W770278)[1]
Medchemexpress LLC Cy5 maleimide | 1437796-65-0 | 98.0% | 641.24 | 25 MG
Cy5 maleimide is a CY dye, a type of cyanine compound. Cyanine compounds are characterized by having two nitrogen atoms connected by an odd number of methyl units. These dyes possess long wavelengths, adjustable absorption and emission, high extinction coefficients, good water solubility, and relatively simple synthesis. CY dyes are frequently used for labeling proteins, antibodies, and small molecular compounds. For protein and antibody labeling, the conjugation can be achieved through a simple mixing reaction.
- Possesses long wavelengths
- Adjustable absorption and emission
- High extinction coefficients
- Good water solubility
- Relatively simple synthesis
- Used for labeling proteins, antibodies, and small molecular compounds
- Conjugation for protein and antibody labeling can be achieved through simple mixing reaction
Medchemexpress LLC Ruthenium(2+) bis(2,2'-bipyridine) mcbpy-O-succinimide ester (PF6)2 | 136724-73-7 | MFCD02683415 | 97.0% | 1014.66 g/mol | C36H29F12N7O4P2Ru | 5 MG
Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 is a ruthenium-based luminescent activated ester dye for bioconjugation and analytical labeling. It is used to covalently tag proteins and probes, to quench quantum dot fluorescence, and as a sensitive electrogenerated chemiluminescence label in detection assays. Supplied as a brown to red solid, the compound contains an N-hydroxysuccinimide (NHS) ester for amine coupling.
![Medchemexpress LLC 1H-Pyrrole-2,5-dione, 1-(3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)- | 75350-46-8 | 99.5% | 25 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000413542-logo.png-250.jpg){kind=logo}
Medchemexpress LLC 1H-Pyrrole-2,5-dione, 1-(3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)- | 75350-46-8 | 99.5% | 25 MG
Fluorescein-5-maleimide is a fluorescent dye used to detect the redox state of thiols in eukaryotic cells. It can label peptides, detect negatively charged nanoparticles, and label actin to explore its interaction with cardiac myosin-binding protein C (cMyBP-C) for heart failure research. It can also screen mutant proteins containing cysteine residues. The excitation wavelength is 494 nm, and the emission wavelength is 519 nm.
- Fluorescent dye
- Detects the redox state of thiols in eukaryotic cells
- Labels peptides
- Detects negatively charged nanoparticles
- Labels actin to study interaction with cardiac myosin-binding protein C (cMyBP-C)
- Screens mutant proteins containing cysteine residues
- Excitation wavelength: 494 nm
- Emission wavelength: 519 nm
Medchemexpress LLC Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 | 136724-73-7 | MFCD02683415 | 97.0% | 1,014.66 g/mol | C36H29F12N7O4P2Ru | 1 MG
Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 is a ruthenium-based activated ester dye used for covalent labeling of amine-containing biomolecules and fluorescence assays. It is supplied as the hexafluorophosphate salt, a brown-red solid (MW 1,014.66 g/mol) with reported purity of 97%.
- Activated ester for acylation of primary amines.
- Long fluorescence lifetime and high photostability.
- Suitable for labeling proteins and peptides for fluorescence detection.
- Brown-red solid; store at -20°C, protected from moisture and light.
- High reported purity for reliable labeling performance.
Medchemexpress LLC Cy3 maleimide chloride | 1838643-41-6 | MFCD28385512 | 99.3% | 615.20 | C36H43ClN4O3 | 10 MG
Cy3 maleimide chloride is a Cyanine3-derived fluorescent labeling reagent containing a maleimide group that selectively reacts with thiol (cysteine) residues to form stable thioether conjugates. Supplied as a chloride salt, it is intended for fluorescent labeling of proteins, peptides, and other thiolated biomolecules for detection and imaging.
- Maleimide functional group enables thiol-specific conjugation.
- High purity suitable for bioconjugation and imaging applications.
- Bright fluorescence in the green-orange wavelength range for sensitive detection.
- Available in multiple sizes for small- to large-scale labeling.
- Formula C36H43ClN4O3 and molecular weight 615.20.
Medchemexpress LLC Rac-1,2-dioleoyl-3-chloropropanediol-d5 | 1246833-00-0 | >99.0% | 644.46 | C39H66D5ClO4 | 2.5 MG
(Rac)-1,2-Dioleoyl-3-chloropropanediol-d5 is a deuterium-labeled lipid reagent for laboratory research, used primarily as a tracer or an internal standard in quantitative analyses. It is suited for isotope-labeling studies and for improving accuracy and precision in mass spectrometry and NMR assays.
- Deuterium-labeled (d5) analog for isotope tracing and quantitation.
- Suitable as an internal standard for NMR, GC-MS, and LC-MS assays.
- High chemical purity (>99.0%) for reliable analytical results.
- Molecular weight 644.46 and formula C39H66D5ClO4 for accurate mass calculations.
- Provided in a small premeasured quantity to support analytical workflows.
Medchemexpress LLC Azido myristic acid | 80667-36-3 | MFCD00911365 | 98.4% | 241.33 g/mol | C12H23N3O2 | 25 MG
Azido myristic acid (12-azidododecanoic acid) is an azide-containing fatty acid reagent used for click-chemistry labeling and detection of protein myristoylation. It reacts with alkyne-containing probes via copper-catalyzed azide-alkyne cycloaddition (CuAAC) and by strain-promoted azide-alkyne cycloaddition (SPAAC) with DBCO/BCN reagents, enabling metabolic labeling and enrichment of myristoylated proteins.
- Azide functional group for click chemistry applications.
- Suitable for metabolic labeling of myristoylated proteins.
- Reacts in CuAAC and SPAAC conjugation reactions.
- Supplied as a solid-liquid mixture with high purity.
- Stable when stored under recommended conditions (see datasheet for details).