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产品名称
荧光素二乙酸盐, used as cell viability stain
质量水平
表单
powder
技术
titration: suitable
颜色
white to faint yellow
mp
200-203 °C (lit.)
溶解性
acetone: 25 mg/mL
ε (消光系数)
≥86000 at 488-494 nm in 0.1 M NaOH
应用
diagnostic assay manufacturing
hematology
histology
储存温度
room temp
SMILES字符串
CC(=O)Oc1ccc2c(Oc3cc(OC(C)=O)ccc3C24OC(=O)c5ccccc45)c1
InChI
1S/C24H16O7/c1-13(25)28-15-7-9-19-21(11-15)30-22-12-16(29-14(2)26)8-10-20(22)24(19)18-6-4-3-5-17(18)23(27)31-24/h3-12H,1-2H3
InChI key
CHADEQDQBURGHL-UHFFFAOYSA-N
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一般描述
应用
底物
相关产品
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
历史批次信息供参考:
分析证书(COA)
Which document(s) contains shelf-life or expiration date information for a given product?
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.
Is Product F7378, Fluorescein diacetate, a fluorescent compound?
No. Only upon hydrolysis of the esters, catalyzed by cellular esterase, the lactone ring opens yielding fluorescein. Only the fluorescein form is fluorescent.
After Product F7378, Fluorescein diacetate, has been converted to fluorescein, what are the maximum excitation and emission wavelengths?
The maximum excitation wavelength is 490 nm and the maximum emission wavelength is 526 nm.
What are some common applications for Product F7378, Fluorescein diacetate?
This compound is used extensively for the staining of living cells. It has been used as a viability stain for cultured neurons and plant ways, and in measuring of esterase and cholinesterase activity. See the following references for usage: Fluorometric determination of lipase: Guilbault, G.G. and Kramer, D.N., "Fluorometric Determination of Lipase, Acylase, Alpha- and Gamma- Chymotrypsin and Inhibitors of These Enzymes", Anal. Chem. 36, 409, 1964. ; Anal. Biochem., Vol. 14, 28 (1966);Fluorescent stain for viable rosette-forming cells: J. Immun. Meth., Vol. 5,305 (1974);Fluorogenic substrate detection of viable pathogenic protozoa: Science, Vol. 227, 435 (1985);Reference Standard in antibody studies: Anal. Biochem., Vol. 9, 474 (1964);Cell viability staining: Staining Procedures, G. Clark, 4th ed., p. 93.Guilbault, G.G. and Kramer, D.N., "Fluorometric Determination of Lipase, Acylase, Alpha- and Gamma- Chymotrypsin and Inhibitors of These Enzymes", Anal. Chem. 36, 409, 1964."
What solubility information do you have on Product F7378, Fluorescein diacetate?
We have found that it is slightly soluble in water at 0.1%, and in ethanol at 0.3%. It is also soluble in dimethylformamide (DMF).
How stable are solutions of Product F7378, Fluorescein diacetate, once prepared?
Based on our experience, stock solutions of fluorescein diacetate at 5 mg/mL in acetone or DMSO can be stored at -20 °C. According to one on-line source, solutions at 5 mg/mL in acetone or ethanol can be stored refrigerated.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
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.
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
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