Quinolines and derivatives
9-(Bromomethyl)acridine 98.0+%, TCI America™
CAS: 1556-34-9 Molecular Formula: C14H10BrN Molecular Weight (g/mol): 272.15 MDL Number: MFCD01321146 InChI Key: MZFYKBHQWLWIBI-UHFFFAOYSA-N PubChem CID: 150930 IUPAC Name: 9-(bromomethyl)acridine SMILES: BrCC1=C2C=CC=CC2=NC2=CC=CC=C12
NAM 98.0+%, TCI America™
CAS: 49759-20-8 Molecular Formula: C17H10N2O2 Molecular Weight (g/mol): 274.279 MDL Number: MFCD00042983 InChI Key: NCFIKBMPEOEIED-UHFFFAOYSA-N Synonym: N-(9-Acridinyl)maleimide, 9-Maleimidoacridine PubChem CID: 3016496 IUPAC Name: 1-acridin-9-ylpyrrole-2,5-dione SMILES: C1=CC=C2C(=C1)C(=C3C=CC=CC3=N2)N4C(=O)C=CC4=O
Medchemexpress LLC Sulfo-Cy7.5 DBCO | 99.8% | 1315.68 | C61H57K3N4O14S4 | 10 MG
Sulfo-Cy7.5 DBCO is a sulfonated near-infrared fluorescent dye bearing a DBCO reactive group. The sulfonate groups increase water solubility, enabling aqueous labeling of biomolecules for imaging and tracking applications.
- Water-soluble sulfonated cyanine dye suitable for aqueous labeling.
- Near-infrared fluorescence for deep-tissue and low-background imaging.
- DBCO reactive group enables copper-free click conjugation to azide-tagged biomolecules.
- High purity suitable for sensitive protein and antibody labeling workflows.
- Store dry at -20°C and protect from light and moisture.
Medchemexpress LLC Sulfo-cyanine3 azide (potassium) | 1658416-54-6 | 95.3% | 10 MG
Sulfo-cyanine3 azide (potassium) is a water-soluble, sulfonated cyanine fluorescent azide for bioorthogonal labeling via azide-alkyne click chemistry. It exhibits Cy3-like optical properties with excitation/emission near 548/563 nm, and is supplied as a potassium salt with a certificate of analysis for documented purity.
- Cy3-like excitation/emission (548/563 nm).
- Water-soluble sulfonated dye for aqueous labeling.
- Reactive azide group for azide-alkyne click chemistry.
- Supplied as a potassium salt with certificate of analysis and documented purity.
- Suitable for labeling proteins, peptides, and oligonucleotides.
Medchemexpress LLC Mono-2-ethyl-5-carboxypentyl terephthalate-d4 | 1684398-42-2 | >85.0% | 312.35 g·mol⁻¹ | C16H16D4O6 | 1 MG
Mono-2-ethyl-5-carboxypentyl terephthalate-d4 is a deuterium-labeled analogue of mono-2-ethyl-5-carboxypentyl terephthalate supplied for use as an analytical tracer and internal standard. It enables accurate quantitation in trace analysis workflows and is intended for use in NMR, GC-MS, and LC-MS methods.
- Isotope-labeled internal standard for quantitative analysis.
- Compatible with NMR, GC-MS, and LC-MS workflows.
- Deuterium labels provide clear mass shift for accurate detection.
- Supplied as a small-quantity vial suitable for calibration and method development.
- Certificate of Analysis and handling documentation available on request.
Medchemexpress LLC Sulfo-Cy3(Me)COOH | 1121756-11-3 | 95.0% | 616.75 g·mol⁻¹ | C30H36N2O8S2 | 10 MG
Sulfo-Cy3(Me)COOH is a sulfonated cyanine3 derivative supplied as a green to dark green solid. It is an orange-fluorescent labeling reagent for proteins and nucleic acids, with excitation at ~554 nm and emission at ~568 nm. The compound is water-soluble and is provided at 10 mg with high purity, intended for conjugation and fluorescence assay applications and requiring protection from light.
- Orange-fluorescent label: Ex = 554 nm, Em = 568 nm.
- High purity suitable for conjugation: ~95.0%.
- Water-soluble: H2O solubility 125 mg/mL (ultrasonic may be required).
- Appearance: solid, green to dark green.
- Storage: 4°C protected from light; in solvent -80°C (6 months) or -20°C (1 month).
- Typical applications: labeling of proteins and nucleic acids, fluorescence assays, conjugation chemistry.
Medchemexpress LLC Sulfo-Cy5.5 azide | 1955527-41-9 | MFCD28334525 | ≥95.0% | 999.16 | C44H50N6O13S4 | 10 MG
Sulfo-Cy5.5 Azide is a water-soluble, far-red fluorescent click-chemistry reagent containing an azide functional group for covalent labeling of peptides, proteins, and oligonucleotides. It is suitable for imaging applications and reacts via copper-catalyzed azide-alkyne cycloaddition (CuAAC) or strain-promoted alkyne-azide cycloaddition (SPAAC); excitation is ~673 nm with emission ~707 nm.
- Water-soluble fluorescent dye suitable for aqueous labeling reactions.
- Azide functional group enables CuAAC and SPAAC click chemistries.
- Far-red emission for reduced background and deep-tissue imaging.
- High purity (≥95.0%) for reliable labeling results.
- Soluble in DMSO at 50 mg/mL with gentle warming and sonication.
- Store protected from light; in solvent store at -80°C for long term.
Medchemexpress LLC Dibenzocyclooctyne-amine | 1255942-06-3 | MFCD22380759 | 99.1% | 276.34 | C18H16N2O | 1 G
DBCO-amine is a dibenzocyclooctyne-functionalized amine reagent used for copper-free click chemistry (strain-promoted alkyne-azide cycloaddition, SPAAC). It is supplied at high purity for bioconjugation and linker synthesis, and is suitable for labeling azide-bearing biomolecules.
- Enables copper-free SPAAC bioconjugation with azide groups
- High purity suitable for synthetic and bioconjugation workflows
- Available in multiple pack sizes, including 1 g for scale-up
- Used for ADC linker synthesis and labeling applications
- Soluble in common organic solvents such as DMSO
Medchemexpress LLC Mal-amido-PEG10-C2-NHS ester | 1137109-22-8 | 98.0% | 777.81 | C34H55N3O17 | 1 G
Mal-amido-PEG10-C2-NHS ester is a non-cleavable ADC linker containing a maleimide group for thiol conjugation and an N-hydroxysuccinimide (NHS) ester for labeling primary amines. It is used in bioconjugation workflows such as antibody-drug conjugate assembly and protein or oligonucleotide labeling.
- Contains maleimide and NHS ester functional groups.
- Enables thiol- and amine-targeted conjugation chemistries.
- Supplied as a solid in multiple package sizes including 1 g.
- Molecular weight of 777.81 and formula C34H55N3O17.
- Provided for research use in biochemical and ADC development applications.
Medchemexpress LLC Pyrroloquinoline quinone-13C3 sodium | 72909-34-3 | 99.3% | 421.11 g·mol⁻¹ | C1113C3H2N2Na4O8 | 1 MG
Pyrroloquinoline quinone-13C3 sodium is the 13C3 isotopically labeled sodium salt of pyrroloquinoline quinone, supplied as a high-purity tracer and internal standard for quantitative analytical methods. It is intended for research use in studies of redox chemistry and biological activity, and for method development and validation in mass spectrometry and NMR-based assays.
- Isotopically labeled sodium salt for tracer and internal standard use.
- High purity suitable for quantitative analytical methods.
- Compatible with NMR, GC-MS, and LC-MS workflows.
- Supports studies of redox activity and biological function.
- Supplied in small, weighed quantities for research applications.
Medchemexpress LLC FAM amine, 6-isomer | 2183440-42-6 | MFCD31580128 | 98.1% | 510.97 g/mol | C27H27ClN2O6 | 10 MG
FAM amine, 6-isomer is a fluorescein-derived fluorescent dye bearing a primary amine at the 6-position. It provides a bright fluorescein signal for labeling oligonucleotides, peptides, and proteins in fluorescence assays and imaging. Supplied as a small-mass research reagent, it enables covalent conjugation through amine-reactive chemistry.
- Fluorescent dye with primary amine for direct conjugation
- Pure 6-isomer for consistent spectral and labeling performance
- Molecular formula C27H27ClN2O6; molecular weight 510.97 g/mol
- High purity suitable for research applications
- Available in small milligram quantities for laboratory use
Medchemexpress LLC Sulfo-Cy5 amine | 2183440-44-8 | 98.0% | 740.97 | C38H52N4O7S2 | 10 MG
Sulfo-Cy5 amine is a water-soluble, near-infrared fluorescent dye containing a primary amine for covalent conjugation to electrophilic targets. Sulfonate groups increase aqueous solubility, making the dye suitable for labeling biomolecules in biological buffers and imaging applications.
- Water-soluble cyanine dye suitable for near-infrared imaging.
- Primary amine functional group enables amine-reactive conjugation.
- High purity (98.0%) supports reproducible labeling results.
- Sulfonate groups enhance solubility in aqueous media and biological buffers.
- Available in small milligram pack sizes for research-scale use.
Medchemexpress LLC Sulfo-Cy3 amine | 2183440-43-7 | 99.7% | 714.93 g/mol | C36H50N4O7S2 | 10 MG
Sulfo-Cy3 amine is a water-soluble Cyanine3 derivative containing a primary amine for covalent conjugation to biomolecules. The sulfonate groups increase aqueous solubility and the dye provides bright, photostable fluorescence for imaging and detection applications. Soluble in DMSO; may require ultrasonication and dry DMSO for best results.
- Water-soluble sulfonated Cy3 derivative suitable for aqueous labeling.
- Primary amine functional group for conjugation to electrophiles and carboxyl groups.
- High purity for consistent labeling performance.
- Soluble in DMSO (125 mg/mL); may require ultrasonication and newly opened DMSO.
- Bright, photostable fluorescence for imaging and detection applications.
Medchemexpress LLC 4H-1-benzopyran-4-one, 7-methoxy-3-(4-methoxyphenyl)-d6 | 1 MG
4',7-Dimethoxyisoflavone-d6 is a deuterium-labeled flavonoid derived from Albizia julibrissin, known for its antifungal properties. This compound is intended for research use only, particularly in studies examining the impact of deuterium substitution on pharmacokinetics and metabolic profiles.
- Isotope-labeled compound
- Purity: 98.82%
- Appearance: Light yellow to yellow solid
- Storage for powder: -20°C for 3 years or 4°C for 2 years
- Storage in solvent: -80°C for 6 months or -20°C for 1 month
- Ships at room temperature
- Soluble in DMSO; other solvents include H₂O, Ethanol, or DMF
Medchemexpress LLC Sulfo-Cy5 azide | 1782950-80-4 | 98.97% | C37H48N6O10S3 | 100 MG
Sulfo-Cy5 azide is a near-infrared fluorescent probe that exhibits favorable click chemistry reactivity. It is used for fluorescence imaging, tissue and cellular visualization, and site-specific modification of antibodies. It can also be applied for RNA labeling and imaging and conjugated to targeting agents for fluorescence imaging in models of atherosclerosis and breast cancer.
- Near-infrared fluorescent probe
- Favorable click chemistry reactivity
- Enables fluorescence imaging
- Used for tissue and cellular visualization of PD-L1 in tumors
- Allows site-specific modification of anti-PD-L1 antibodies
- Applicable for RNA labeling and imaging
- Can be conjugated to targeting agents for fluorescence imaging in atherosclerosis and breast cancer models