AF 555 NHS ester
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 1K820 | 1 mg | $140 | in stock | |
| 2K820 | 5 mg |
$450
|
in stock | |
| 4K820 | 25 mg |
$1460
|
in stock | |
| 5K820 | 50 mg |
$1890
|
in stock | |
| 6K820 | 100 mg |
$2640
|
in stock |
AF 555 NHS ester is a bright, photostable, and hydrophilic fluorescent dye for the yellow channel. This NHS ester is an amine-reactive dye; it can label amine groups in proteins, peptides, amino-modified oligos, and other target molecules.
AF 555 is a hydrophilic fluorophore with high fluorescence quantum yield and high photostability, an alternative to tetramethylrhodamine (TAMRA, TMR) or Cyanine3 dyes. The dye is useful for many applications, including cytometry and microscopy.
Absorption and emission spectra of AF 555
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TAMRA NHS ester, 6-isomer
NHS-ester of TAMRA dye for proteins, peptides, and modified oligonucleotides labeling via reaction with amino groups. Pure 6-isomer.General properties
| Appearance: | dark red powder |
| Molecular weight: | 1058.36 |
| Molecular formula: | C39H46K3N3O16S4 |
| Quality control: | NMR 1H and HPLC-MS (95+%) |
| Storage conditions: | 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. Avoid prolonged exposure to light. |
| MSDS: | Download |
| Product specifications |
Spectral properties
| Excitation/absorption maximum, nm: | 552 |
| ε, L⋅mol−1⋅cm−1: | 152000 |
| Emission maximum, nm: | 566 |
| Fluorescence quantum yield: | 0.14 |
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