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6-ROXtra™ SE *Superior 6-ROX Replacement*
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Application notes
Although ROX dyes have strong fluorescence they are notoriously unstable. Some commercial samples only have a few months' shelf life. Compared to 6-ROX labeling compounds our 6-ROXtra™ dyes have greatly enhanced stability while they have essentially identical spectral properties to those of 6-ROX when conjugated to a biological substrate (such as oligonucleotides). In addition, our 6-ROXtra™ dyes are much more water-soluble than 6-ROX dyes that are essentially insoluble in water and aqueous buffers. Our preliminary studies indicated that 6-ROXtra-derived oligos are more easily purified than the corresponding 6-ROX oligos in most cases. When conjugated to proteins, the fluorescence of 6-ROX is severely quenched while 6-ROXtra™ still shows strong fluorescence.
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Common stock solution preparation
Table 1. Volume of DMSO needed to reconstitute specific mass of 6-ROXtra™ SE *Superior 6-ROX Replacement* 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 | 97.066 µL | 485.329 µL | 970.657 µL | 4.853 mL | 9.707 mL |
| 5 mM | 19.413 µL | 97.066 µL | 194.131 µL | 970.657 µL | 1.941 mL |
| 10 mM | 9.707 µL | 48.533 µL | 97.066 µL | 485.329 µL | 970.657 µL |
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
Product family
| Name | Excitation (nm) | Emission (nm) | Extinction coefficient (cm -1 M -1) | Correction Factor (280 nm) |
| 6-ROXtra™ acid | 578 | 595 | - | - |
| 6-FAM, SE [6-Carboxyfluorescein, succinimidyl ester] *CAS 92557-81-8* | 493 | 517 | 83000 | 0.178 |
| 6-HEX, SE [6-Carboxy-2',4,4',5',7,7'-hexachlorofluorescein, succinimidyl ester] *Single Isomer* | 533 | 559 | 73000 | 0.15 |
| 6-JOE, SE [6-Carboxy-4',5'-dichloro-2',7'-dimethoxyfluorescein, succinimidyl ester] *CAS#: 113394-23-3* | 520 | 545 | 750001 | - |
| 6-TET, SE [6-Carboxy-2',4,7',7-tetrachlorofluorescein, succinimidyl ester] | 521 | 542 | 73000 | 0.13 |
| 6-CR6G, SE [6-Carboxyrhodamine 6G, succinimidyl ester] *Single isomer* | 522 | 546 | 94000 | 0.214 |
| 6-TAMRA, SE [6-Carboxytetramethylrhodamine, succinimidyl ester] *CAS#: 150810-69-8* | 552 | 578 | 90000 | 0.178 |
| 6-ROX, SE [6-Carboxy-X-rhodamine, succinimidyl ester] *CAS#: 216699-36-4* | 578 | 604 | 82000 | 0.168 |
| 6-VIC, SE [6-VIC NHS ester] | 526 | 543 | - | - |
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References
View all 11 references: Citation Explorer
Four-color DNA sequencing by synthesis on a chip using photocleavable fluorescent nucleotides
Authors: Seo TS, Bai X, Kim DH, Meng Q, Shi S, Ruparel H, Li Z, Turro NJ, Ju J.
Journal: Proc Natl Acad Sci U S A (2005): 5926
Authors: Seo TS, Bai X, Kim DH, Meng Q, Shi S, Ruparel H, Li Z, Turro NJ, Ju J.
Journal: Proc Natl Acad Sci U S A (2005): 5926
Evaluation of surface-enhanced resonance Raman scattering for quantitative DNA analysis
Authors: Faulds K, Smith WE, Graham D.
Journal: Anal Chem (2004): 412
Authors: Faulds K, Smith WE, Graham D.
Journal: Anal Chem (2004): 412
Photocleavable fluorescent nucleotides for DNA sequencing on a chip constructed by site-specific coupling chemistry
Authors: Seo TS, Bai X, Ruparel H, Li Z, Turro NJ, Ju J.
Journal: Proc Natl Acad Sci U S A (2004): 5488
Authors: Seo TS, Bai X, Ruparel H, Li Z, Turro NJ, Ju J.
Journal: Proc Natl Acad Sci U S A (2004): 5488
Adsorption of oligonucleotides on PMMA/PNIPAM core-shell latexes: polarity of the PNIPAM shell probed by fluorescence
Authors: Prazeres TJ, Santos AM, Martinho JM, Elaissari A, Pichot C.
Journal: Langmuir (2004): 6834
Authors: Prazeres TJ, Santos AM, Martinho JM, Elaissari A, Pichot C.
Journal: Langmuir (2004): 6834
Blue light-induced generation of reactive oxygen species in photoreceptor ellipsoids requires mitochondrial electron transport
Authors: Yang JH, Basinger SF, Gross RL, Wu SM.
Journal: Invest Ophthalmol Vis Sci (2003): 1312
Authors: Yang JH, Basinger SF, Gross RL, Wu SM.
Journal: Invest Ophthalmol Vis Sci (2003): 1312