Some applications for use of 2´,7´-Dichlorofluorescein are listed below. This product can be used for the determination of carbohydrates by fluorescence densitometry after TLC. See G. Gübitz et al., J. Chromatogr., 117, 337, (1976). 2´,7´-Dichlorofluorescein as also been used in the determination of H2O2 by chemiluminescence. See the following references by H. Watanabe et al. Anal. Sci. 2, 461, (1986) and T. Segawa et al. Anal. Sci. 6, 763, (1990). This product has also been used as a fluorescent additive used in indirect fluorimetric detection in OTC-HPLC. See W.D. Pfeffer and E.S. Yeung, J. Chromatogr., 506, 401, (1990).
35848
2′,7′-Dichlorofluorescein
BioReagent, suitable for fluorescence, ≥90% (T)
Synonyma:
DCF, Dichlorofluorescein
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| Vám/SKU | Dostupnost | Cena |
|---|---|---|
5 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 3 090,00 Kč |
25 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 12 300,00 Kč |
O této položce
Empirický vzorec (Hillův zápis):
C20H10Cl2O5
Číslo CAS:
Molekulová hmotnost:
401.20
UNSPSC Code:
12171500
NACRES:
NA.32
PubChem Substance ID:
EC Number:
200-968-6
Beilstein/REAXYS Number:
58009
MDL number:
3 090,00 Kč
Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti.
Technický servis
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BioReagent
Quality Segment
assay
≥90% (T)
form
solid
mp
280 °C (dec.) (lit.)
fluorescence
λex 504 nm; λem 529 nm in 0.1 M Tris pH 8.0
suitability
suitable for fluorescence
SMILES string
Oc1cc2Oc3cc(O)c(Cl)cc3C4(OC(=O)c5ccccc45)c2cc1Cl
InChI
1S/C20H10Cl2O5/c21-13-5-11-17(7-15(13)23)26-18-8-16(24)14(22)6-12(18)20(11)10-4-2-1-3-9(10)19(25)27-20/h1-8,23-24H
InChI key
VFNKZQNIXUFLBC-UHFFFAOYSA-N
General description
2′,7′-Dichlorofluorescein, also known as DCF is a fluorescent dye. The DCF fluorescence excitation is at 498nm with emission at 522nm. The lipophilic non-fluorescent Dcfh-DA readily crosses the cell membrane through passive diffusion followed by deacetylation. The deacylated product is an oxidant sensitive 2′,7′-dichlorofluorescein (DCHF). DCHF is oxidized later to form highly fluorescent DCF, which is measured.
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Tato položka | |||
|---|---|---|---|
| description BioReagent, suitable for fluorescence, ≥90% (T) | description suitable for use as an indicator in chloride titration, ~90% (TLC), powder | description ACS reagent | description BioReagent, suitable for fluorescence, ≥95% (HPLC) |
| suitability suitable for fluorescence | suitability - | suitability passes test for adsorption indicator | suitability suitable for fluorescence |
| fluorescence λex 504 nm; λem 529 nm in 0.1 M Tris pH 8.0 | fluorescence - | fluorescence - | fluorescence λex 504 nm; λem 524 nm in 0.1 M Tris pH 8.0 (esterase) |
| form solid | form powder | form powder | form powder or crystals |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| assay ≥90% (T) | assay ~90% (TLC) | assay - | assay ≥95% (HPLC) |
| mp 280 °C (dec.) (lit.) | mp 280 °C (dec.) (lit.) | mp 280 °C (dec.) (lit.) | mp 232-234 °C (lit.) |
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Skladovací třída
11 - Combustible Solids
Co se děje?
WGK 3
Bod vzplanutí (°F)
Not applicable
Bod vzplanutí (°C)
Not applicable
PPE (osobní ochranné prostředky)
dust mask type N95 (US), Eyeshields, Gloves
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In what types of applications can 2´,7´-Dichlorofluorescein be used?
1 answer-
Helpful?
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What excitation /emission wavelengths are best for fluorescence detection of 2´,7´-Dichlorofluorescein?
1 answer-
2´,7´-Dichlorofluorescein can be detected at an excitation wavelength at 504 nm and emission wavelength at 529 nm in 0.1 M Tris pH 8.0.
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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What can be used to make a solution of 2´,7´-dichlorofluorescein?
1 answer-
2´,7´-Dichlorofluorescein is soluble at 25 mg/mL absolute ethanol with heating. 2´,7´-Dichlorofluorescein is also soluble in water at 0.1 mg/mL.
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