D6665
2′,7′-Dichlorofluorescein
~90% purity (TLC) (85- 100% purity), powder
Sinónimos:
Dichlorofluorescein; Fluorescein 27
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Nombre del producto
2′,7′-Dichlorofluorescein, suitable for use as an indicator in chloride titration, ~90% (TLC), powder
InChI key
VFNKZQNIXUFLBC-UHFFFAOYSA-N
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
SMILES string
Oc1cc2Oc3cc(O)c(Cl)cc3C4(OC(=O)c5ccccc45)c2cc1Cl
assay
~90% (TLC)
form
powder
technique(s)
titration: suitable
mp
280 °C (dec.) (lit.)
solubility
ethanol: 25 mg/mL
density
0.79 g/cm3
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
Quality Level
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Categorías relacionadas
Application
General description
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
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What is the Department of Transportation shipping information for this product?
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.
What can be used to make a solution of 2´,7´-dichlorofluorescein?
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.
In what types of applications can 2´,7´-Dichlorofluorescein be used?
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).
What excitation /emission wavelengths are best for fluorescence detection of 2´,7´-Dichlorofluorescein?
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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