Product Data Sheet
QSY-21
Catalog No. A43749
QSY-21 is a powerful fluorescence quencher designed for applications in fluorescence resonance energy transfer (FRET). It exhibits broad absorption in the far red and near-infrared range, with a notable absorption maximum at 661 nm, enabling efficient quenching of fluorescence from dyes such as Cyanine5, Cyanine5.5, and AF 647. As a carboxylic acid derivative, QSY-21 is essential for studies requiring precise control of fluorescent signals, making it a valuable tool in various biochemical and cellular research applications.
Chemical Information
| Catalog Num | A43749 |
|---|---|
| M. Wt | 718.26 |
| Formula | C41H36ClN3O5S |
| Purity | >98% |
| Storage | at -20 °C 3 years (powder form); at -20 °C 6 months (Solution base) |
| CAS No. | 1200894-41-2 |
| Synonyms | |
| SMILES | O=C(C1CCN(S(=O)(C2=C(C3=C4C=CC(N5C6=C(CC5)C=CC=C6)=CC4=[O+]C7=C3C=CC(N8C9=C(CC8)C=CC=C9)=C7)C=CC=C2)=O)CC1)O.[Cl-] |
Biological Activity
| Description | QSY-21 is a powerful fluorescence quencher designed for applications in fluorescence resonance energy transfer (FRET). It exhibits broad absorption in the far red and near-infrared range, with a notable absorption maximum at 661 nm, enabling efficient quenching of fluorescence from dyes such as Cyanine5, Cyanine5.5, and AF 647. As a carboxylic acid derivative, QSY-21 is essential for studies requiring precise control of fluorescent signals, making it a valuable tool in various biochemical and cellular research applications. |
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RETURN POLICY
Adooq’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.
Adooq’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.
SHIPPING AND STORAGE
Adooq products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Adooq Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Adooq products are stable under the recommended conditions.
Adooq products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Adooq Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Adooq products are stable under the recommended conditions.
