Protein Labeling Reagents
Fluorochrome Inc Fluoro-Gold, 50 mg
Hydroxystilbamidine (also called Fluoro-Gold) has been used extensively as a retrograde tracer for neurons and also a histochemical stain. Fluoro-Gold can undergo retrograde axonal transport, it shows extensive filling of dendrites, and has a high resistance to fading.
Medchemexpress LLC Sulfo-cyanine5-alkyne | 1345823-20-2 | 95.3% | 693.87 g·mol⁻¹ | C36H43N3O7S2 | 10 MG
CY5-YNE (sulfo-Cyanine5-alkyne) is a clickable fluorescent labeling reagent containing an alkyne for copper-catalyzed azide-alkyne cycloaddition (CuAAC). It is used to covalently label peptides, proteins, and oligonucleotides for fluorescence detection and imaging.
- Alkyne functional group enables click chemistry conjugation.
- Excitation 645 nm, emission 670 nm for Cy5-compatible detection.
- Molecular weight 693.87 g·mol⁻¹ and formula C36H43N3O7S2.
- Provided as solid or 10 mM solution in DMSO for flexible use.
- Reported purity ≈95.3%; store protected from light.
LICOR IRDye QC-1 NHS Ester (0.5 mg)
IRDye QC-1 is the first non-fluorescent (dark) quencher compatible with a wide range of visible and near-infrared fluorophores (~500-800 nm). It has the widest available quenching range, so you do not need to carefully match the donor's fluorescence spectrum with the acceptor's absorbance. IRDye QC-1 NHS ester can be used for FRET (fluorescence resonance energy transfer) applications such as protease assays. Recently, it has been paired with IRDye 800CW in optoacoustic studies.
Cayman Chemical 12mthyl MyrIstIc ACD mthy 10mg
A methylated fatty acid methyl ester; has been found in vermicomposts of cattle manure, carica papaya leaves, and cuticular wax of K. africana; a volatile compound in lipid-lowering granulated tea; levels are decreased in nifurtimox-treated T. cruzi compared to non-treated controls
Medchemexpress LLC Dde Biotin-PEG4-azide | 1802907-93-2 | 99.44% | C32H53N7O8S | 25 MG
Dde Biotin-PEG4-azide is a PEG-based PROTAC linker utilized in the synthesis of PROTACs. It functions as a click chemistry reagent, containing an Azide group, enabling it to participate in copper-catalyzed azide-alkyne cycloaddition (CuAAc) reactions with Alkyne groups and strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with DBCO or BCN groups.
- PEG-based PROTAC linker
- Click chemistry reagent with Azide group
- Undergoes CuAAc reactions with Alkyne groups
- Participates in SPAAC reactions with DBCO or BCN groups
Cayman Chemical 13mthyl MyrIstIc ACD mthy 10mg
A methylated bacterial fatty acid methyl ester; has been used as a marker of bacteria in sewage sludges and of bacterial contaminants in pharmaceutical manufacturing by GC-MS
Cayman Chemical 12mthyl MyrIstIc ACD mthy 25mg
A methylated fatty acid methyl ester; has been found in vermicomposts of cattle manure, carica papaya leaves, and cuticular wax of K. africana; a volatile compound in lipid-lowering granulated tea; levels are decreased in nifurtimox-treated T. cruzi compared to non-treated controls
Sigma Aldrich Fine Chemicals Biosciences Fluorescein isothiocyanate isomer I suitable for protein labeling, >=90% (HPLC), powder | 3326-32-7 | MFCD00005063 | 1G
Fluorescein isothiocyanate isomer I suitable for protein labeling, >=90% (HPLC), powder | Purity: >=90% (HPLC) | Mol Wt: 389.38 | 3326-32-7 | MFCD00005063 | 1G
Broadpharm Amino-PEG9-alcohol | 15332-95-3 | MFCD31656979 | 1g
Amino-PEG9-alcohol | Putity: 98% | MW: 413.5 | 15332-95-3 | MFCD31656979 | 1g
Vector Laboratories NEUROBIOTIN Tracer
NEUROBIOTIN Tracer (SP-1120) is an amino derivative of biotin that can be used as an intracellular label for cells, particularly neurons. It is used for visualizing neural architecture and for the identification of gap junction coupling. Can be used in many types of preparations including in vivo, whole mounts, slice preparations, or cultured cells - Can be delivered by many routes such as intracellular electrodes, microinjection, cut-loading, or scrape-loading - Can be detected using avidin or streptavidin systems with either chromogenic or fluorescence visualization methods
![eMolecules Broadpharm / Cy55 Picolyl Azide / 1mg / 795361741 / BP-40176 / / / [null] / 1119.260 / C50H54N8O14S4](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502472448.JPG-250.jpg)
eMolecules Broadpharm / Cy55 Picolyl Azide / 1mg / 795361741 / BP-40176 / / / [null] / 1119.260 / C50H54N8O14S4
Broadpharm / Cy55 Picolyl Azide / 1mg / 795361741 / BP-40176 / / / [null] / 1119.260 / C50H54N8O14S4
Vector Laboratories Biotin (Long Arm) Hydrazide, 50 mg
Specialty Products. Biotin (Long Arm) Hydrazide reacts with aldehyde groups and thus can be used to label carbohydrate groups present in a wide variety of macromolecules. The spacer arm in this product allows optimal accessibility of avidin or streptavidin conjugates to biotin. Incorporation of Biotin (Long Arm) Hydrazide involves a two-step process. First, the saccharide is treated with periodate (not included) that produces aldehyde groups on sugars containing unsubstituted vicinal hydroxyl groups (these are usually present at the non-reducing termini of the oligosaccharide). Next, Biotin (Long Arm) Hydrazide reacts with the aldehyde groups to produce a stable linkage between the saccharide and biotin. This reagent can also be used to couple biotin to carboxyl groups on proteins and other molecules using a carbodiimide coupling method, and to specifically label RNA with biotin at the 3' end.