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Alexa fluor 647 NHS ester (L-5-Hydroxytryptophan-d3) is a photostable far-red fluorescent dye used in imaging and flow cytometry to generate stable signals for protein labeling, amine-modified oligonucleotides, and other primary amine-containing molecules.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 1 mg | $630 | In Stock | |
| 5 mg | $1,390 | In Stock | |
| 10 mg | $2,100 | In Stock | |
| 25 mg | $3,560 | In Stock |
| Description | Alexa fluor 647 NHS ester (L-5-Hydroxytryptophan-d3) is a photostable far-red fluorescent dye used in imaging and flow cytometry to generate stable signals for protein labeling, amine-modified oligonucleotides, and other primary amine-containing molecules. |
| Synonyms | AF 647 NHS ester |
| Molecular Weight | 942.06 |
| Formula | C39H47N3O16S4 |
| Cas No. | 1620475-28-6 |
| Smiles | O=C(ON1C(=O)CCC1=O)CCCCC2(C=3C=C(C=CC3[N+](=C2C=CC=CC=C4N(C5=CC=C(C=C5C4(C)C)S(=O)(=O)O)CCCS(=O)(=O)O)CCCS(=O)(=O)[O-])S(=O)(=O)O)C |
| Color | Black |
| Appearance | Solid |
| Storage | store at low temperature,keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |

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