中文名 | 荧光素二乙酸盐 |
英文名 | Fluorescein diacetate |
别名 | 醋酸荧光素 二乙酸萤光素 二乙酰荧光素 二乙酸荧光素 荧光素二乙酸酯 荧光素双醋酸酯 荧光素二乙酸盐 二乙酸荧光素(FDA) FDA,荧光素二乙酸酯 活细胞荧光示踪探针FDA[荧光素二乙酸盐] |
英文别名 | FDA Diacetylfluorescein DIACETYLFLUORESCEIN Fluorescein Diacetat Fluorescein diacetate FLUORESCEIN DIACETATE DI-O-ACETYLFLUORESCEIN FLUORESCEIN DI-O-ACETATE 3',6'-diacetylfluorescein FDA [FLUORESCEIN DIACETATE] 3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-3',6'-diyl diacetate 3-Oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-diyl diacetate |
CAS | 596-09-8 |
EINECS | 209-877-6 |
化学式 | C24H16O7 |
分子量 | 416.38 |
InChI | InChI=1/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 |
密度 | 1.2738 (rough estimate) |
熔点 | 200-203°C(lit.) |
沸点 | 494.73°C (rough estimate) |
闪点 | 264°C |
水溶性 | Soluble in chloroform, DMSO, ethanol, and water. |
蒸汽压 | 1.42E-14mmHg at 25°C |
溶解度 | 丙酮: 可溶物25mg/mL |
折射率 | 1.6810 (estimate) |
酸度系数 | 6.4(at 25℃) |
存储条件 | −20°C |
敏感性 | Sensitive to light |
外观 | 结晶性粉末 |
颜色 | Light yellow |
最大波长(λmax) | ['490nm'] |
BRN | 62575 |
MDL号 | MFCD00005062 |
体外研究 | Fluorescein diacetate (FDA) is an acetylated derivative of the green fluorescent dye fluorescein. Fluorescein diacetate (FDA), a fluorescent probe used for vital staining, is a fluorescently activated by esterolytic activity of human Pi-class glutathione S-transferase (hGSTP1) selectively among various cytosolic GSTs. Fluorescence activation of Fluorescein diacetate susceptible to GST inhibitors is observed in MCF7 cells exogenously overexpressing hGSTP1, but not in cells overexpressing hGSTA1 or hGSTM1. Fluorescein diacetate can be used as a fluorogenic substrate for hGSTP1-1. To investigate whether the fluorescence activation is due to hGSTP1 activity, Fluorescein diacetate is incubated with recombinant hGSTP1-1 and GSH in vitro. Remarkable fluorescence activation is observed in the presence of both hGSTP1-1 and GSH, whereas only slight activation is observed in the absence of either of them or when the enzyme is heat inactivated. This suggests that the fluorescence activation of Fluorescein diacetate depends on hGSTP1-1 activity. From the linear relationship between the rate of increase in fluorescence and the hGSTP1-1 concentration, the specific activity of the enzyme for 1 μM Fluorescein diacetate is determined to be 79±15 nmol/min/mg protein. Fluorescein diacetate is applicable as a fluorogenic substrate for evaluating inhibitors of GSTP1-1 in vitro. For Fluorescein diacetate as a substrate, both Ethacrynic acid (EA) and NBDHEX suppress the hGSTP1-1-dependent fluorescent increase in a concentration-dependent manner, with IC 50 s of 3.3±0.5 μM and 0.61±0.04 μM, respectively. |
危险品标志 | Xi - 刺激性物品 |
风险术语 | 36/37/38 - 刺激眼睛、呼吸系统和皮肤。 |
安全术语 | S24/25 - 避免与皮肤和眼睛接触。 S36/37/39 - 穿戴适当的防护服、手套和护目镜或面具。 S27 - 一旦衣物受到污染,请立即脱去。 S26 - 不慎与眼睛接触后,请立即用大量清水冲洗并征求医生意见。 |
WGK Germany | 3 |
TSCA | Yes |
海关编号 | 32129000 |
参考资料 展开查看 | 1. [IF=2.406] Wu Yi et al."Characteristics of intestinal microbiota and enzyme activities in mice fed with lily bulb."3 Biotech. 2021 Jan;11(1):1-8 2. [IF=3.411] Guo KangXiao et al."Study on Baohe Pills Regulating Intestinal Microecology and Treating Diarrhea of High-Fat and High-Protein Diet Mice."Biomed Research International. 2022;2022:6891179 |
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