Sulforhodamine 101 sodium salt *CAS 465544-24-5*
Ordering information
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Additional ordering information
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| Fax | 1-800-609-2943 |
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| Quotation | Request |
| International | See distributors |
| Shipping | Standard overnight for United States, inquire for international |
Physical properties
| Molecular weight | 628.69 |
| Solvent | Water |
Spectral properties
| Absorbance (nm) | 573 |
| Correction Factor (260 nm) | 0.24 |
| Correction Factor (280 nm) | 0.21 |
| Extinction coefficient (cm -1 M -1) | 139000 |
| Excitation (nm) | 578 |
| Emission (nm) | 593 |
Storage, safety and handling
| H-phrase | H303, H313, H333 |
| Hazard symbol | XN |
| Intended use | Research Use Only (RUO) |
| R-phrase | R20, R21, R22 |
| Storage | Freeze (< -15 °C); Minimize light exposure |
| UNSPSC | 12171501 |
Alternative formats
| Sulforhodamine 101, sodium salt |
Related products
| Overview |  SDSProtocol |
CAS 465544-24-5 | Molecular weight 628.69 | Absorbance (nm) 573 | Correction Factor (260 nm) 0.24 | Correction Factor (280 nm) 0.21 | Extinction coefficient (cm -1 M -1) 139000 | Excitation (nm) 578 | Emission (nm) 593 |
Sulforhodamine 101 is a fluorescence reference standard for measuring fluorescence quantum yield. It is also the key precursor used for preparing rhodamine 101 sulfonyl chloride (also called Texas Red®, a trademark of Molecular Probes).
Calculators
Common stock solution preparation
Table 1. Volume of Water needed to reconstitute specific mass of Sulforhodamine 101 sodium salt *CAS 465544-24-5* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.
| 0.1 mg | 0.5 mg | 1 mg | 5 mg | 10 mg | |
| 1 mM | 159.061 µL | 795.305 µL | 1.591 mL | 7.953 mL | 15.906 mL |
| 5 mM | 31.812 µL | 159.061 µL | 318.122 µL | 1.591 mL | 3.181 mL |
| 10 mM | 15.906 µL | 79.53 µL | 159.061 µL | 795.305 µL | 1.591 mL |
Molarity calculator
Enter any two values (mass, volume, concentration) to calculate the third.
| Mass (Calculate) | Molecular weight | Volume (Calculate) | Concentration (Calculate) | Moles | ||||
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Spectrum
Open in Advanced Spectrum Viewer
Spectral properties
| Absorbance (nm) | 573 |
| Correction Factor (260 nm) | 0.24 |
| Correction Factor (280 nm) | 0.21 |
| Extinction coefficient (cm -1 M -1) | 139000 |
| Excitation (nm) | 578 |
| Emission (nm) | 593 |
Images
Figure 1. Chemical structure for Sulforhodamine 101 *CAS 60311-02-6*
References
View all 4 references: Citation Explorer
Interfacial behavior of sulforhodamine 101 at the polarized water/1,2-dichloroethane interface studied by spectroelectrochemical techniques
Authors: Nagatani H, Suzuki S, Fermin DJ, Girault HH, Nakatani K.
Journal: Anal Bioanal Chem (2006): 633
Authors: Nagatani H, Suzuki S, Fermin DJ, Girault HH, Nakatani K.
Journal: Anal Bioanal Chem (2006): 633
Sulforhodamine 101 as a specific marker of astroglia in the neocortex in vivo
Authors: Nimmerjahn A, Kirchhoff F, Kerr JN, Helmchen F.
Journal: Nat Methods (2004): 31
Authors: Nimmerjahn A, Kirchhoff F, Kerr JN, Helmchen F.
Journal: Nat Methods (2004): 31
Flow cytometric applications of Sulforhodamine 101 as a fluorescent stain for total cellular protein
Authors: Engelhard HH., undefined
Journal: Biotech Histochem (1997): 1
Authors: Engelhard HH., undefined
Journal: Biotech Histochem (1997): 1
Texas Res-X and rhodamine Red-X, new derivatives of sulforhodamine 101 and lissamine rhodamine B with improved labeling and fluorescence properties
Authors: Lefevre C, Kang HC, Haugl and RP, Malekzadeh N, Arttamangkul S.
Journal: Bioconjug Chem (1996): 482
Authors: Lefevre C, Kang HC, Haugl and RP, Malekzadeh N, Arttamangkul S.
Journal: Bioconjug Chem (1996): 482