Fluorescent Dyes, Labeling Reagents, and Peptide Conjugation Tools
LifeTein provides fluorescent labeling services, dye-conjugated peptide support, and selected fluorescent reagents for research applications. Our platform supports peptide labeling, protein labeling, imaging probe development, FRET studies, assay development, and custom conjugation projects using a broad range of fluorescent dyes, quenchers, and linker chemistries.
Fluorescent labeling is widely used in peptide science, protein science, molecular imaging, cellular uptake studies, binding assays, FRET systems, and probe development. LifeTein supports these workflows with both custom fluorescent labeling services and selected dye / linker products.
We provide fluorescent labeling services using FITC, FAM, TAMRA, Cyanine dyes (Cy3, Cy3.5, Cy5, Cy5.5, Cy7, Cy7.5), EDANS/Dabcyl, MCA, AZDye or Alexa Fluor dyes (including Alexa488, Alexa532, Alexa546, Alexa594, Alexa633, Alexa647), ATTO dyes (Atto465, Atto488, Atto495, Atto550, Atto647), and DyLight dyes such as DyLight 488 and DyLight 550. If your required fluorescent dye is not listed, please contact us.
Related service page: Peptide Synthesis FITC Modification and Fluorescent Labeling Services
Custom Labeling Services
Peptide and biomolecule labeling with common fluorescent dyes and custom conjugation options.
FRET and Imaging Tools
Useful for probe design, cellular imaging, uptake studies, and interaction assays.
Reagents and Linkers
Selected dye reagents, conjugates, and linker tools for advanced labeling strategies.
Applications
- Fluorescent peptide synthesis and labeled probe development
- Protein and peptide interaction studies
- FRET assay design
- Cellular uptake and trafficking studies
- Microscopy and imaging workflows
- Bioconjugation and linker chemistry development
- Custom assay reagent preparation
Fluorescent Labeling Services
LifeTein offers custom fluorescent labeling services for peptides and related molecules. Depending on the sequence and application, dyes can often be introduced at the N-terminus, C-terminus, lysine side chain, cysteine side chain, or through a linker strategy. We also support quencher pairing and selected dual-label designs for imaging and assay applications.
This flexibility is useful for customers developing custom imaging probes, cell-penetrating peptide tracers, receptor-binding probes, labeled control reagents, and fluorescence-based assay standards.
Selected Literature Reference
“…FITC-Tet1, Alexa 594-N1, and Atto 643-N1 (95% purity) were acquired from LifeTein (NJ)...”
Featured Fluorescent and Conjugation Reagents
| Cat. No. | Product | Price / Availability |
| LTF-001 | Cyanine5 NHS Ester | |
| LTF-002 | Phospha-Oseltamivir–Biotin Conjugate | |
| LTF-003 | Photocleavable Linker: 1-(5-Methoxy-2-nitro-4-prop-2-ynyloxyphenyl)ethyl N-succinimidyl Carbonate | $450 |
How We Can Support Your Project
- Custom fluorescent labeling of peptides and biomolecules
- Dual-labeled probe design for imaging or FRET workflows
- Selection of dye chemistry compatible with your target sequence
- Preparation of peptide-dye conjugates for assay development
- Small-scale research orders and larger custom requests
Need a Fluorescently Labeled Peptide or Custom Conjugate?
Contact us for fluorescent labeling services, dye-compatible peptide synthesis, and custom conjugation support.
