Protein Labeling Reagents
Grainger BRIGHT DYES Dye Tracer Liquid, Blue
The Bright Dyes Dye Tracer Liquid Blue is a blue liquid dye used to detect leaks in plumbing and HVAC systems. It contains a concentrated blue dye that mixes with water. When added to a system, any leaks will release blue-dyed water for easy leak detection. This product is rated for use in all potable water systems and is safe for PVC, CPVC, copper and other common plumbing materials. It comes in a 16 oz plastic bottle with an easy pour spout that allows controlled dispensing into systems. This professional-grade leak detector provides an effective method to pinpoint leaks.
Medchemexpress LLC Diazo biotin-PEG3-alkyne | 1884349-58-9 | MFCD28505544 | 98.1% | C39H53N7O9S | 10MG
Diazo Biotin-PEG3-alkyne is a multifunctional chemical linker combining a photo-reactive diazo group, a biotin affinity tag, a PEG3 spacer, and a terminal alkyne. It is designed for conjugation to azide-containing biomolecules via copper-catalyzed azide-alkyne cycloaddition (CuAAC) and for downstream affinity capture or detection with biotin-streptavidin systems. Supplied as a high-purity powder for research use.
- Contains terminal alkyne for CuAAC (click chemistry).
- Provides biotin tag for affinity capture with streptavidin.
- Includes PEG3 spacer to improve solubility and flexibility.
- Features a photo-reactive diazo group for photoaffinity labeling.
- High purity suitable for biochemical and proteomic workflows.
Medchemexpress LLC Cy3 NHS ester | 1393363-07-9 | 99.5% | 590.15 | 50 MG
Cy3 NHS ester is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility, and relatively simple synthesis. CY dyes are often used for the labeling of proteins, antibodies, and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction.
- Long wavelength
- Adjustable absorption and emission
- High extinction coefficient
- Good water solubility
- Relatively simple synthesis
- Used for labeling of proteins, antibodies, and small molecular compounds
Enzo Life Sciences Fluorescein-12-ddUTP dideoxynucleotide pack for 3'-oligonucleotide labeling (25Reactions)
The procedure for labeling of DNA probes with a polynucleotide "tail" containing hapten-labeled nucleotides was developed by Enzo. In such terminal labeling reactions, terminal transferase catalyzes the addition of nucleotides to any 3'-OH terminus in a template independent manner. This rapid and convenient nonradioactive labeling procedure is free of any sequence bias that is normally observed in random priming or nick translation reactions. Terminal labeling is an ideal procedure for the labeling of oligonucleotides. An oligonucleotide can be synthesized using standard, commercially available reagents and labeled after synthesis in a simple and reproducible enzyme reaction. The BIO-PROBE 3'-Oligonucleotide Labeling System provides maximum flexibility for labeling oligonucleotides approximately 15 to 100 nucleotides in length. A standard reaction will label up to 100 picomoles (1µg of a 30-mer oligonucleotide sequence).
Biotium MTSEA Biotin-XX
MTSEA biotin selectively labels thiols under mild conditions. We offer MTSEA biotin with different linker lengths (Biotin-MTSEA, Biotin-X-MTSEA, and Biotin-XX-MTSEA), all of which allow selective labeling of cell surface thiols. Longer linkers should facilitate interaction between biotin and streptavidin. MTSEA biotin-XX: 2-((6-((6-((biotinoyl)amino)hexanoyl)amino)hexanoyl)amino)ethylmethanethiosulfonate; White solid soluble in DMF or DMSO; Store desiccated at -20°C; C25H45N5O6S3; MW: 607.7.
Medchemexpress LLC Sulfo-Cyanine3-alkyne | 1010386-62-5 | 98.1% | 100 MG
CY3-YNE (Sulfo-Cyanine3-alkyne) is a dye for labeling soluble proteins, peptides, and oligonucleotides/DNA. It is a click chemistry reagent containing an alkyne group that can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing azide groups.
- Dye for labeling soluble proteins, peptides, and oligonucleotides/DNA
- Click chemistry reagent
- Contains an alkyne group
- Undergoes copper-catalyzed azide-alkyne cycloaddition (CuAAc) with azide groups
Enzo Life Sciences AMPIGENE qPCR 1-Step Green Kit Lo-ROX (200Reactions)
AMPIGENE qPCR 1-Step Green Kits use the latest developments in reverse transcriptase (RTase) technology and buffer chemistry for efficient cDNA synthesis and qPCR in a single tube. The modified MMLV RTase is blended with RNase inhibitor to prevent degradation of RNA by contaminating RNase. The RTase is thermostable and extremely active. AMPIGENE qPCR 1-Step Green Kits use a proprietary intercalating dye that does not inhibit PCR. An optimized buffer system allows efficient amplification and proprietary enhancers prevent the formation of primers/dimers to increase sensitivity and specificity. ROX is a reference dye which is used to normalize fluorescent signal in qPCR. AMPIGENE qPCR 1-Step Green Kits come with either Lo-ROX or Hi-ROX concentration. For Hi-ROX, see ENZ-NUC109. Choose the appropriate ROX concentration for the instrument (see instrument compatibility for reference dye chart below.) Applications: PCR.
STA Pharmaceutical Fmoc-L-Lys(5-FAM)-OH | 5 g | CAS 1242933-88-5 | MDL MFCD03787910
Fmoc-L-Lys(5-FAM)-OH is a Amino Acid reagent (Subcategory: Lys) sold by WuXi TIDES. Offered in 5 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 1242933-88-5
- MDL: MFCD03787910
- InChIKey: ZAGGWQSWIFPNCB-DHUJRADRSA-N
- Molecular Weight: 726.738
- Molecular Formula: C42H34N2O10
- Purity: ≥95%
- Container Type: 30 mL HDPE
- Pack Size: 5 g
- Net Weight: 5 g
- Gross Weight: 16.5 g
- Commodity Code: 29322090
- Country Of Origin: China
- IUPAC: N2-(((9H-fluoren-9-yl)methoxy)carbonyl)-N6-(3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-5-carbonyl)-L-lysine
- SMILES: O=C(OCC1C2=C(C3=C1C=CC=C3)C=CC=C2)N[C@@H](CCCCNC(C4=CC5=C(C=C4)C6(C7=C(OC8=C6C=CC(O)=C8)C=C(O)C=C7)OC5=O)=O)C(O)=O
Biocare Medical, LLC TTF-1 + Napsin A, 6ml, Provides a High Sensitivity and Specificity for Lung Adenocarcinoma
TTF-1 + Napsin A provides a high sensitivity and specificity for lung adenocarcinomas. When used in a panel with p63 and CK5, it may aid in the analysis of poorly differentiated lung adenocarcinomas vs. squamous cell carcinomas.
Lumiprobe Sulfo-Cyanine7 NHS ester, 1603861-95-5, 5mg
Molecular formula: C41H46N3KO10S2, Molecular weight: 844.05, Appearance: dark green powder, Solubility: good in water, DMF, DMSO; Sulfo-Cyanine7 is a water-soluble near infrared dye. The fluorophore is ideal for the labeling of complex proteins for subsequent live organism NIR imaging studies or sonoluminescence.
Apexbio Technology LLC Cy5 maleimide (non-sulfonated), 25mg. Cas: MFCD: NA. Labeling of cysteine residues, as well as other thiolated molecules
Cy5 maleimide is a mono-reactive dye for selectively labeling peptides and proteins which couples with thiol groups. Other sizes are available. Please inqury us for quote.
Sigma Aldrich Fine Chemicals Biosciences 6-Methylcoumarin >=99%, FCC, FG | 92-48-8 | MFCD00006875 | 1KG
6-Methylcoumarin >=99%, FCC, FG | Purity: >=99% | Mol Wt: 160.17 | 92-48-8 | MFCD00006875 | 1KG
Biotium ADVASEP-7
ADVASEP-7 is a sulfonated β-cyclodextrin derivative that has been reported to reduce background fluorescence when using SynaptoGreen C4 to stain brain slices. Properties: Average MW: 2163; C42H70-nO35(C4H8SO3Na)n•hydrate where n = Average Degree of Substitution 6.5; White solid soluble in water; Store at 4°C
Medchemexpress LLC Desthiobiotin-NHS ester | 80750-24-9 | MFCD08062086 | 98.0% | 311.33 g·mol⁻¹ | C14H21N3O5 | 50 MG
Desthiobiotin-NHS ester is an amine-reactive biotinylation reagent (N-hydroxysuccinimide ester) used to covalently label primary amines on proteins and other biomolecules. The desthiobiotin tag binds streptavidin with lower affinity than biotin, allowing reversible capture and mild elution for affinity workflows. The compound is provided as a dry solid intended for storage at low temperature and use in standard bioconjugation protocols.
- Reacts with primary amines to form stable amide bonds.
- Enables reversible streptavidin-based capture and mild elution.
- High purity for reliable conjugation results.
- Suitable for protein labeling, affinity purification, and probe construction.
- Available in small-scale packages for laboratory use.
Medchemexpress LLC Desthiobiotin polyethyleneoxide iodoacetamide | 00-00-0 | MFCD06202009 | 97.7% | C21H38IN5O6 | 10MG
Desthiobiotin polyethyleneoxide iodoacetamide is a cysteine-reactive labeling reagent for chemoproteomic workflows that derivatizes thiol groups for enrichment and analysis. It couples a desthiobiotin affinity tag to targets via a polyethylene oxide spacer and an iodoacetamide electrophile that alkylates cysteine residues. Supplied for research use only.
- Enables selective labeling of cysteine residues for downstream enrichment and mass spectrometry analysis.
- Includes desthiobiotin affinity tag for reversible streptavidin-based capture.
- Polyethylene oxide spacer improves solubility and reduces steric hindrance.
- Iodoacetamide electrophile provides rapid and specific thiol alkylation under mild conditions.
- Provided with reported purity suitable for proteomic applications.