Calcein(Synonyms: 钙黄绿素 Fluorexon)

Calcein;(Synonyms: 钙黄绿素; Fluorexon)

Calcein 是一种荧光染料和自灭探针,可以作为脂囊泡渗漏的指示剂,也可作 EDTA 钙离子滴定和荧光测定钙离子的络合指示剂。

Calceinamp;;(Synonyms: 钙黄绿素; Fluorexon)

Calcein Chemical Structure

CAS No. : 1461-15-0

规格 价格 是否有货 数量
10;mM;*;1 mL in DMSO ¥550 In-stock
100 mg ¥500 In-stock
200 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

Calcein 相关产品

bull;相关化合物库:

  • Bioactive Compound Library Plus

生物活性

Calcein is a fluorescent dye and self-quenching probe, used as an indicator of lipid vesicle leakage, and also as a complexometric indicator for titration of calcium ions with EDTA, and for fluorometric determination of calcium.

体外研究
(In Vitro)

Calcein accumulates intracellularly in coelomocytes incubated in coelomic fluid or ISO-EDTA. Coelomocytes incubated in CF show an increase in the calcein fluorescence intensity compared to the control.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

分子量

622.53

Formula

C30H26N2O13

CAS 号

1461-15-0

中文名称

钙黄绿素

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4deg;C, protect from light

*In solvent : -80deg;C, 6 months; -20deg;C, 1 month (protect from light)

溶解性数据
In Vitro:;

DMSO : ≥ 100 mg/mL (160.63 mM)

0.1 M NaOH : 10 mg/mL (16.06 mM; ultrasonic and adjust pH to 11 with NaOH)

* “≥” means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 1.6063 mL 8.0317 mL 16.0635 mL
5 mM 0.3213 mL 1.6063 mL 3.2127 mL
10 mM 0.1606 mL 0.8032 mL 1.6063 mL

*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (protect from light)。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 1.

    请依序添加每种溶剂:;2% NaHCO3 in ddH2O

    Solubility: 20 mg/mL (32.13 mM); Clear solution; Need ultrasonic and adjust pH to 6 with NaHCO3

*以上所有助溶剂都可在 MCE 网站选购。
参考文献
  • [1]. Marques-Santos LF, et al. ABCB1 and ABCC1-like transporters in immune system cells from sea urchins Echinometra lucunter and Echinus esculentus and oysters Crassostrea gasar and Crassostrea gigas. Fish Shellfish Immunol. 2017 Sep 5;70:195-203.

Cell Assay
[1]

Coelomocytes suspensions (ISO and CF) are separately incubated with calcein-AM (excitation and emission wavelength: 496 nm and 516 nm, respectively) at a final concentration of 200 nM, during 30 min, at 26°C. Calcein-AM is a nonfluorescent ABC transporter substrate whose intracellular accumulation is inversely proportional to ABC transporter activity. Intracellular esterases convert calcein-AM into the fluorescent dye calcein, which is not an ABC transporter substrate, thereby accumulating the dye inside the cell. Therefore, a high fluorescence signal indicates low ABC transporter activity whereas a low fluorescence signal indicates high activity. The fluorescence of samples is measured by flow cytometer. The experiment is repeated six times in duplicates.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

参考文献
  • [1]. Marques-Santos LF, et al. ABCB1 and ABCC1-like transporters in immune system cells from sea urchins Echinometra lucunter and Echinus esculentus and oysters Crassostrea gasar and Crassostrea gigas. Fish Shellfish Immunol. 2017 Sep 5;70:195-203.