Products
Services
Resources
Selection Guides
About
Cal-590™-Dextran Conjugate
MW 10,000
Calcium measurement is critical for numerous biological investigations. Fluorescent probes that show spectral responses upon binding calcium have enabled researchers to investigate changes in intracellular free calcium concentrations by using fluorescence microscopy, flow cytometry, fluorescence spectroscopy and fluorescence microplate readers. Cells may be physically loaded with the cell-impermeant salt forms of these dextran-conjugated calcium indicators using patch pipette or microinjection. The fluorescence signal from these cells is measured using fluorescence microscopy. The dextran forms of our calcium indicators show a dramatic reduction in both leakage and compartmentalization compared to the AM ester forms. Among the fluorescent calcium indicator dextran conjugates, Cal-590 dextran conjugates might be a better choice than other red fluorescent dextrtan conjugates due to its higher fluorescence quantum yield and larger fluorescence enhancement by calcium. This Cal-590 dextran conjugate has Kd of 1.0 uM.
| Catalog | Size | Price | Quantity |
|---|---|---|---|
| 20509 | 1 mg | Price |
Physical properties
| Molecular weight | ~11000 |
| Solvent | Water |
Spectral properties
| Extinction coefficient (cm -1 M -1) | 78000 |
| Excitation (nm) | 563 |
| Emission (nm) | 584 |
| Quantum yield | 0.62 1 |
Usage and storage
| Intended use | Research Use Only (RUO) |
| Storage | Freeze (< -15 °C); Minimize light exposure |
Contact us
| Telephone | |
| Fax | |
| sales@aatbio.com | |
| International | See distributors |
| Bulk request | Inquire |
| Custom size | Inquire |
| Technical Support | Contact us |
| Request quotation | Request |
| Purchase order | Send to sales@aatbio.com |
| Shipping | Standard overnight for United States, inquire for international |
Page updated on July 17, 2026