SiRhius® 650 carboxylic acid
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 11S90 | 1 mg |
$236.00
|
in stock | |
| 31S90 | 10 mg |
$1240.00
|
in stock |
SiRhius® 650 is a silicon rhodamine (SiR) family fluorophore that exhibits far-red fluorescence. The dye is characterized by a high extinction coefficient, resistance to fading, and minimal photo- and cytotoxicity, making it indispensable for super-resolution microscopy (STED, SIM, PALM/STORM) and long-term live-cell imaging. Unlike many cyanine dyes, SiRhius 650 is stable under alkaline conditions.
SiRhius 650 carboxylic acid can be used as a reference standard and, after activation, for the synthesis of SiRhius 650-containing biomolecules (proteins, peptides, amino-modified oligonucleotides, etc.).
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General properties
| Appearance: | blue crystals |
| Molecular weight: | 472.61 |
| CAS number: | 1426090-03-0 |
| Molecular formula: | C27H30N2O4Si |
| IUPAC name: | 3,7-bis(dimethylamino)-5,5-dimethyl-3'-oxo-3'H,5H-spiro[dibenzo[b, e]siline-10,1'-isobenzofuran]-6'-carboxylic acid |
| Solubility: | dichloromethane, ethyl acetate, methanol, acetonitrile, DMF |
| Quality control: | NMR 1H and HPLC-MS (95+%) |
| Storage conditions: | 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. |
| MSDS: | Download |
| Product specifications |
Spectral properties
| Excitation/absorption maximum, nm: | 646 |
| ε, L⋅mol−1⋅cm−1: | 112000 |
| Emission maximum, nm: | 669 |
| Fluorescence quantum yield: | 0.57 |
| CF260: | 0.07 |
| CF280: | 0.02 |
This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.
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