Lucifer Yellow CH;萤光黄CH;Polar molecular tracer 极性分子示踪剂;神经元形态学;Nile Red 尼罗红;FluoroGold;CAS NO:67769-47-5;
产品信息
产品名称 |
产品编号 | 规格 | CAS NO. | |
Lucifer Yellow CH (Lithium salt) 萤光黄CH锂盐 |
MX4475-25MG | 25mg | 67769-47-5 |
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Lucifer Yellow CH (Lithium salt) 萤光黄CH锂盐 | MX4475-100MG | 100mg | 67769-47-5 |
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产品描述
萤光黄CH(Lucifer Yellow CH, LY-CH)是一种强荧光染料,长期被用于标记神经细胞。与萤光黄VS(Lucifer Yellow VS)相比,萤光黄CH包含一个碳酰肼基团,在醛类固定过程中能共价结合到周围的生物分子上。作为一种生物示踪剂,来监测神经元的分支形态和再生、间隙连接和鉴定,以及醛类固定后的选择性细胞消融。这种极性示踪剂和其它相似的非膜渗透性染料往往通过微注射、胞饮作用、划痕标记、ATP诱导的跨膜或渗透压冲击来完成加载。
本品为锂盐形式的萤光黄CH(Lucifer Yellow CH lithium salt),通常用于微注射,因其比钾盐形式的萤光黄CH表现出更高的溶解性。钾盐形式的萤光黄CH(Lucifer Yellow CH potassium salt)倾向于用在锂离子可能干扰某些生物功能的场景。
产品特性
1)CAS NO.:67769-47-5
2)化学名:6-amino-2-[(hydrazinylcarbonyl)amino]-2,3-dihydro-1,3-dioxo-1H-benz[de]isoquinoline-5,8-disulfonic acid, dilithium salt
3)同义名:Lucifer Yellow carbohydrazide lithium salt; Lucifer Yellow CH dilithium salt; 萤光黄碳酰肼锂盐;萤光黄CH二锂盐;萤黄CH二锂盐;
4)分子式:C13H9Li2N5O9S2
5)分子量:457.25
6)荧光:λex 428 nm; λem 540 nm in H2O
7)外观:固体
8)溶解性:溶于H2O(1mg/ml)
9)化学结构式:
保存与运输方法
保存:≤4ºC避光干燥保存,至少2年有效。
运输:冰袋运输。
应用示例(来自文献,仅作参考)
文献1:Bederska M, Borucki W, Znojek E. Movement of fluorescent dyes Lucifer Yellow (LYCH) and carboxyfluorescein (CF) in Medicago truncatula Gaertn. roots and root nodules. Symbiosis. 2012;58(1-3):183-190. doi:10.1007/s13199-013-0221-7
实验目的:萤光黄进行质外体示踪(apoplastic tracing)
实验方法:根瘤暴露于含1%萤光黄的溶液12h,之后不经固定或经2次1min间隔真空抽吸和4%戊二醛过夜固定。处理后根部和根瘤用去离子水清洗。切片用激光扫描共聚焦显微镜观察(405nm二极管激光器激发,发射光谱为500nm-550nm之间,最大发射波长为528nm)。
Fig. The bright field (a) and CLSM (b–g) photographs of non-fixed tissues. Part of nodulated root system (a). Cross section of control root nodule (b). The uptake of LYCH by untouched root (c) and untouched root nodule (d, e – cross section). Damaged root exhibited LYCH fluorescence in xylem elements (d,g). Cross section of the stele of control root (f). Cross section of root stele treated with LYCH (g). Abbreviations: IT – inner tissue, OC – outer cortex, VB – vascular bundle, X – xylem vessels, arrow – parts of cells stained with LYCH, double arrow-head – autofluorescence of uninfected cells. Bars represent: A and C= 100 μm, B and E= 200 μm, D= 150 μm, F and G= 50 μm. LYCH fluorescence was observed after excitation at 405 nm, emission spectrum was between 500 nm and 550 nm
注意事项
1)荧光染料均存在淬灭问题,请尽量注意避光,以减缓荧光淬灭。
2)为了您的安全和健康,请穿实验服并戴一次性手套操作。
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