标签归档：bcecf

日本同仁化学BCECF试剂货号：B031 CAS号：85138-49-4| DOJINDO

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BCECF试剂货号：B031
2′,7′-Bis(carboxyethyl)-4 or 5-carboxyfluorescein
CAS号：85138-49-4
商品信息
储存条件：室温
运输条件：室温

SDS 
选择规格：下载

5mg

期货 

 
荧光探针检测方案

性质
注意事项
溶解例
参考文献
规格性状

性质

　　5-羧基荧光素是一种通过将染料掺入细胞来研究细胞内pH变化的方法，但是当用于pKa = 7.0的细胞(如淋巴细胞)中时，染料会从细胞中洗脱出来，很难快速测定。 BCECF引入了两个羧乙基基团以减少从细胞中的洗脱。 适用于研究细胞内pH变化(λex= 490 nm，λem= 526 nm)。

注意事项

　　・如果将本产品以粉末形式取出并使用，由于其性质，静电等因素，它可能会粘附在容器内部，从而难以完全取出。

・对于粘附在容器上且无法取出的粉末，请在使用前将要使用的溶剂倒入容器中并溶解。

溶解例

2 mg / ml(甲醇)

参考文献

1) R. A. Steinhardt and D. Mazia, “Development of K+-conductance and Membrane Potentials in Unfertilized Sea Urchin Eggs After Exposure to NH4OH”, Nature, 1973, 241, 400.
2) T. J. Rink, R. Y. Tsien and T. Pozzan, “Cytoplasmic pH and Free Mg2+ in Lymphocytes”, J. Cell Biol., 1982, 95, 189.
3) A. M. Paradiso, R. Y. Tsien and T. E. Machen, “Na+ -H+ Exchange in Gastric Glands as Measured with a Cytoplasmic-trapped, Fluorescent pH Indicator”, Proc. Natl. Acad. Sci. USA, 1984, 81, 7436.
4) S. Grinstein, B. Elder and W. Furuya, “Phorbol Ester-induces Changes of Cytoplasmic pH in Neutrophils: Role of Exocytosis in Na+ – H+ Exchange”, Am. J. Physiol., 1985, 248, C379.
5) G. B. Zavoico, E. J. Cragoe and M. B. Feinstein, “Regulation of Intracellular pH in Human Platelets”, J. Biol. Chem., 1986, 261(28), 13160.
6) G. R. Bright, W. Fisher, J. Rogowska and L. Taylor, “Fluorescence Ratio Imaging Microscopy: Temporal and Spatial Measurements of Cytoplasmic pH”, J. Cell Biol., 1987, 104, 1019.
7) C. Aalkjaer and E. J. Gragoe Jr, “Intracellular pH Regulation in Resting and Contracting Segments of Rat Mesenteric Resistance Vessels”, J. Physiol., 1988, 402, 391.
8) K. Tsujimoto, M. Semadeni, M. Huflejt and L. Packer, “Intracellular pH of Halobacteria Can Be Determined by the Fluorescent Dye 2′,7′-bis(carboxyethyl)-5(6)-carboxyfluorescein”, Biochem. Biophys. Res. Commun., 1988, 155, 123.
9) M. A. Kolber, R. R. Quinones, R. E. Gress and P. A. Henkart, “Measurament of Cytotoxicity by Target Cell Release and Retention of the Fluorescent Dye Bis-carboxyethyl-carboxyfluorescein(BCECF)”, J. Immunol. Methods, 1988, 108, 255.
10) H. Harada, Y. Kanai, M. Anzai and Y. Suketa, “cAMP Activates Cl–/HCO3– Exchange for Regulation of Intracellular pH in Renal Epithelial Cells”, Biochim. Biophys. Acta, 1991, 1092, 404.
11) C. C. Freudenrich, E. Murphy, L. A. Levy, R. E. London and M. Lieberman, “Intracellular pH Modulates Cytosolic Free Magnesium in Cultured Chicken Heart Cells”, Am. J. Physiol., 1992, 262(4), C1024.
12) K. Khodakhah and D. Ogden, “Functional Heterogeneity of Calcium Release by Inositol Triphosphate in Single Purkinje Neurones, Cultured Cerebellar Astorocytes, and Peripheral Tissues”, Proc. Natl. Acad. Sci. USA, 1993, 90, 4976.
13) G. Boyarsky, C. Hanssen and L. A. Clyne, “Superiority of in vitro Over in vivo Calibrations of BCECF in Vascular Smooth Muscle Cells”, FASEB J., 1996, 10, 1205.
14) S. A. Weston and C. R. Parish, “New Fluorescent Dyes for Lymphocyte Migration Studies Analysis by Flow Cytometry and Fluorescent Microscopy”, J. Immunol. Methods, 1990, 133, 87.
15) L. S. D. Clerck, C. H. Bridts, A. M. Mertens, M. M. Moens and W. J. Stevens, “Use of Fluorescent Dyes in the Determination of Adherence of Human Leucocytes to Endothelial Cells and the Effects of Fluorochromes on Cellular Function”, J. Immunol. Methods, 1994, 172, 115.

规格性状

规格性状：

该产品为橙色至红棕色粉末，可溶于甲醇。

纯度（HPLC）：85.0％以上

溶于甲醇：测试合格

荧光光谱：测试合格

红外光谱：测试合格

NMR光谱：测试一致

处理条件：

1.储存方法：避光

关联产品

BCECF试剂货号：B031 CAS号：85138-49-4
Fluo 4-AM special packaging试剂
1-[2-Amino-5-(2,7-difluoro-6-acetoxymethoxy-3-oxo-9-xanthenyl)phenoxy]-2-(2-amino-5-methylphenoxy)ethane-N,N,N’,N’-tetraacetic acid, tetra(acetoxymethyl)ester

Fluo 4-AM试剂
1-[2-Amino-5-(2,7-difluoro-6-acetoxymethoxy-3-oxo-9-xanthenyl)phenoxy]-2-(2-amino-5-methylphenoxy)ethane-N,N,N’,N’-tetraacetic acid, tetra(acetoxymethyl)ester

BCECF试剂货号：B031 CAS号：85138-49-4
Rhod 2-AM试剂
1-[2-Amino-5-(3-dimethylamino-6-dimethylammonio-9-xanthenyl)phenoxy]-2-(2-amino-5-methylphenoxy)ethane-N,N,N’,N’-tetraacetic acid, tetraacetoxymethyl ester, chloride

BCECF试剂货号：B031 CAS号：85138-49-4
Fluo 3-AM试剂
Fluo3-AM1-[2-Amino-5-(2,7-dichloro-6-acetoxymethoxy-3-oxo-9-xanthenyl)phenoxy]-2-(2-amino-5-methylphenoxy)ethane-N,N,N’,N’-tetraacetic acid, tetra(acetoxymethyl)ester

BCECF试剂货号：B031 CAS号：85138-49-4
Fura2-AM试剂
1-[6-Amino-2-(5-carboxy-2-oxazolyl)-5-benzofuranylo

日本同仁化学BCECF-AM试剂货号：B262 3′-O-Acetyl-2′,7′-bis(carboxyethyl)-4 or 5-carboxyfluorescein, diacetoxymethyl ester CAS号：117464-70-7| DOJINDO

发表于由

上海金畔生物科技有限公司代理日本同仁化学 DOJINDO代理商全线产品，欢迎访问官网了解更多信息

BCECF-AM试剂货号：B262
3′-O-Acetyl-2′,7′-bis(carboxyethyl)-4 or 5-carboxyfluorescein, diacetoxymethyl ester
CAS号：117464-70-7
商品信息
储存条件：-20度保存，避光
运输条件：室温
分子式：

C35H28O15

分子量：

688.59

特点：

 

● 水溶性好，可进入细胞膜

● 荧光强度高

下载说明书
SDS下载

选择规格：
1mg

现货

荧光探针检测方案

BCECF-AM试剂货号：B262 3′-O-Acetyl-2′,7′-bis(carboxyethyl)-4 or 5-carboxyfluorescein, diacetoxymethyl ester CAS号：117464-70-7

BCECF-AM试剂货号：B262 3′-O-Acetyl-2′,7′-bis(carboxyethyl)-4 or 5-carboxyfluorescein, diacetoxymethyl ester CAS号：117464-70-7

活动进行中
规格性状
产品概述
产品特性
操作说明
文献

活动进行中

订购满5000元，200元礼品等你拿

凑单关联产品TOP5

NO.1.    Annexin V, FITC Apoptosis Detection Kit    细胞凋亡检测

NO.2.    Cell Counting Kit-8    细胞增殖毒性检测

NO.3.    Cytotoxicity LDH Assay Kit-WST    乳酸脱氢酶(LDH)检测

NO.4.    Cell Viability Assay Kit    细胞增殖/毒性检测

NO.5.    Fluo 4-AM special packaging    细胞内钙离子检测

 

规格性状

规格

 

特性：该产物为浅橙色至浅橙色棕色粉末或固体，可溶于DMSO和乙腈。

纯度(HPLC)：90%以上

荧光光谱：试验成功

NMR光谱：试验成功

产品概述

BCECF被广泛地用于细胞内pH的测定。Tsien博士和其他人通过加入2个额外的羧化物基团改进了这种羧基荧光素。加入的两个羧基使得它能更好地被固定在细胞内。BCECF具有很好的水溶性，是因为它在中性pH时带有4-5个负电荷。但是BCECF却很难穿过细胞膜进入到细胞内。它的pKa值为6.97，高于其它的羧基荧光素。BCECF在激发光谱439nm处有等吸收点，因此它能和Fura 2一样可用比率法测定。505nm和439nm通常是非常有用的用于比率测量的波长，一般会将490nm和450nm的滤光片加在激发光源的前面。而530nm的滤光片则是用来查看它的荧光信号的。这里要注意的是激发光谱与吸收光谱有一些细微的区别。BCECF-AM是乙酰甲酯化的BCECF。它能够轻易地进入到细胞内。就和其他的乙酰甲酯类一样，BCECF-AM只需要通过孵育就能进入细胞。BCECF-AM对潮湿非常敏感，所以要小心保存。如果DMSO储存液的颜色从浅黄色变为深橙色就代表了AM的分解。所以通过对颜色变化的观测，能判断AM酯的水解情况。

BCECF-AM试剂货号：B262 3′-O-Acetyl-2′,7′-bis(carboxyethyl)-4 or 5-carboxyfluorescein, diacetoxymethyl ester CAS号：117464-70-7

产品特性

BCECF-AM是一种对细胞内pH敏感的新型荧光探针，分别用490nm和440nm波长激发BCECF所得到的发射荧光之比与pH有很好的线性关系。BCECF-AM是乙酰甲酯化的BCECF，BCECF-AM是一种可以穿透细胞膜的荧光染料，BCECF-AM没有荧光，进入细胞后被细胞内的酯酶水解成BCECF，从而被留在细胞内。BCECF在适当的pH值情况下可以被激发形成绿色荧光。BCECF-AM不仅被广泛用于哺乳动物细胞的研究，也有报道用于动物组织、植物细胞、细菌和酵母等的细胞内pH水平检测。在有细胞内pH变化的细胞毒性、细胞凋亡、细胞粘附、药物抵抗、细胞趋化等过程中BCECF AM被广泛应用。BCECF-AM(pH荧光探针)需用无水DMSO(anhydrous DMSO)配制。

BCECF-AM试剂货号：B262 3′-O-Acetyl-2′,7′-bis(carboxyethyl)-4 or 5-carboxyfluorescein, diacetoxymethyl ester CAS号：117464-70-7

操作说明

试剂 (溶解方法):   

1.45 mM的BCECF-AM/DMSO溶液(将1 mg 的BCECF-AM溶于1mlDMSO)HEPES缓冲液(20mM HEPES，153mM NaCl，5mM KCl，5mM glucose，pH7.4)

操作：

1.用HEPES制备细胞悬液，细胞浓度为4×107个/ml。

2.将1.45 mM的BCECF-AM/DMSO溶液加入细胞悬液中 (细胞悬液的1/300体积)，BCECF-AM终浓度为3mM。

3.37℃培养30min。

4.用HEPES缓冲液清洗细胞3次，制成3×106个/ml的细胞悬液。

5.使用荧光显微镜或带有图像分析系统的激光共聚焦显微镜检测细胞的荧光强度。

*标记的条件因细胞种类而异，在每次实验前，请先确定最佳条件。以上方法仅供参考。

BCECF-AM试剂货号：B262 3′-O-Acetyl-2′,7′-bis(carboxyethyl)-4 or 5-carboxyfluorescein, diacetoxymethyl ester CAS号：117464-70-7

文献

1.R.A.Steinhardt, et al.,Development of K+-conductance and Membrane Potentials in Unfertilized Sea Urchin Eggs After Exposure to NH4OH. Nature.1973;241:400-401.

2.T.J.Rink, et al.,Cytoplasmic pH and Free Mg2+ in Lymphocytes.J Cell Biol.1982;95:189-196.

3.A.M.Paradiso,et al.,Na+ -H+ Exchange in Gastric Glands as Measured with a Cytoplasmic-trapped, Fluorescent pH Indicator. PNAS.1984;81:7436-7440.

4.S.Grinstein,et al.,Phorbol Ester-induces Changes of Cytoplasmic pH in Neutrophils:Role of Exocytosis in Na+ – H+ Exchange.Am J Physiol.1985;248:C379-C386.

5.G.B.Zavoico, et al.,Regulation of intracellular pH in human platelets.Effects of thrombin,A23187,and ionomycin and evidence for activation of Na+/H+ exchange and its inhibition by amiloride analogs.J Biol Chem.1986;261:13160-13167.

6.G.R.Bright,et al.,Fluorescence Ratio Imaging Microscopy: Temporal and Spatial Measurements of Cytoplasmic pH.J Cell Biol.1987;104:1019-1033.

7.C.Aalkjaer,et al.,Intracellular pH Regulation in Resting and Contracting Segments of Rat Mesenteric Resistance Vessels. J Physiol.1988;402:391-410.

8.K.Tsujimoto,et al.,Intracellular pH of Halobacteria Can Be Determined by the Fluorescent Dye 2 E 7 Ebis(carboxyethyl)-5(6)-carboxyfluorescein.Biochem Biophys Res Commun.1988;155:123-129.

9.M.A.Kolber,et al.,Measurament of Cytotoxicity by Target Cell Release and Retention of the Fluorescent Dye Bis-carboxyethylcarboxyfluorescein(BCECF).J Immunol Methods.1988;108:255-264.

10.H.Harada,et al.,cAMP Activates Cl-/HCO3 – Exchange for  Regulation of Intracellular pH in Renal Epithelial Cells. Biochim Biophys  Acta. 1991;1092:404-407.11.C.C. Freudenrich, et al.,Intracellular pH Modulates  Cytosolic Free Magnesium in Cultured Chicken Heart Cells.Am J Physiol.1992;262:C1024-C1030.

12.K.Khodakhah,et al.,Functional Heterogeneity of Calcium  Release by Inositol Triphosphate in Single Purkinje Neurones, Cultured  Cerebellar Astorocytes, and Peripheral Tissues. PNAS. 1993;90:4976-4980.

13.G.Boyarsky,et al.,Superiority of in vitro Over in vivo Calibrations of BCECF in Vascular Smooth Muscle Cells. FASEB J.1996;10:1205-1212.

14.S.A. Weston,et al., New Fluorescent Dyes for Lymphocyte  Migration Studies Analysis by Flow Cytometry and Fluorescent Microscopy.J Immunol Methods.1990;133:87-97.

15.L.S.De Clerck,et al.,Use of Fluorescent Dyes in the Determination of Adherence of Human Leucocytes to Endothelial Cells and the Effects of Fluorochromes on Cellular Function.J Immunol Methods.1994;172:115-124.

BCECF-AM

发表于由

BCECF-AM;

BCECF-AM 是一种细胞膜穿透的荧光指示剂，可以测量细胞内的 pH 值。

BCECF-AMamp;;

BCECF-AM Chemical Structure

CAS No. : 117464-70-7

规格 价格 是否有货
1 mg ￥3700 询问价格 货期

* Please select Quantity before adding items.

生物活性

BCECF-AM is a cell membrane permeable compound widely used as a fluorescent indicator for intracellular pH.

体外研究
(In Vitro)

BCECF-AM is used to measure changes in basal pHi and NHE activity induced by increasing concentrations of ET-1 (0.1-10 nM) in pulmonary arterial smooth muscle cell (PASMC)[1].

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

820.70

Formula

C80H72O38
CAS 号

117464-70-7
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式

-20deg;C, protect from light

*该产品在溶液状态不稳定，建议您现用现配，即刻使用。
参考文献

  • [1]. Clark Undem, et al. Endothelin-1 Augments Na+/H+ Exchange Activity in Murine Pulmonary Arterial Smooth Muscle Cells via Rho Kinase. PLoS One. 2012; 7(9): e46303.
Cell Assay
[1]

PASMCs are placed in a laminar flow cell chamber perfused with HBSS with pH adjusted to 7.4. pHi is measured in cells incubated with the membrane permeant (acetoxymethyl ester) form of the pH-sensitive fluorescent dye BCECF-AM for 60 min at 37°C under an atmosphere of 20% O2-5% CO2. Cells are then washed with HBSS for 15 min at 37°C to remove extracellular dye and allow complete de-esterification of cytosolic dye. Ratiometric measurement of BCECF fluorescence is performed on a workstation consisting of a Nikon TSE 100 Ellipse inverted microscope with epi-fluorescence attachments. The light beam from a xenon arc lamp is filtered by interference filters at 490 and 440 nm, and focused onto the PASMCS under examination via a 20× fluorescence objective. Light emitted from the cell at 530 nm is returned through the objective and detected by an imaging camera. An electronic shutter is used to minimize photobleaching of dye. Protocols are executed and data collected on-line with InCyte software. pHi is estimated from in situcalibration after each experiment. Cells are perfused with a solution containing (in mM): 105 KCl, 1 MgCl2, 1.5 CaCl2, 10 glucose, 20 HEPES-Tris and 0.01 nigericin to allow pHi to equilibrate to external pH. A two point calibration is created from fluorescence measured as pHi is adjusted with KOH from 6.5 to 7.5. Intracellular H+ ion concentration ([H+]i) is determined from pHi using the formula: pHi = −log ([H+]i).

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

  • [1]. Clark Undem, et al. Endothelin-1 Augments Na+/H+ Exchange Activity in Murine Pulmonary Arterial Smooth Muscle Cells via Rho Kinase. PLoS One. 2012; 7(9): e46303.

BCECF(Synonyms: 2′,7′-Bis(2-carboxyethyl)-5(6)-carboxyfluorescein)

发表于由

BCECF;(Synonyms: 2′,7′-Bis(2-carboxyethyl)-5(6)-carboxyfluorescein) 纯度: ge;94.0%

BCECF 是一种对 pH 敏感 (pH-sensitive) 的荧光染料，可用于监测细胞的 pH 比值。BCECF 允许测量生理 pH 值范围在 6.0-8.0 之间。激发波长: 490/440 nm; 发射强度: 535 nm。

BCECFamp;;(Synonyms: 2′,7′-Bis(2-carboxyethyl)-5(6)-carboxyfluorescein)

BCECF Chemical Structure

CAS No. : 85138-49-4

规格 价格 是否有货
1 mg ￥1600 询问价格 货期

* Please select Quantity before adding items.

生物活性

BCECF is a pH-sensitive fluorescent dye and can be used to monitor cellular pH ratiometrically. BCECF allows measurements in the physiological pH range 6.0–8.0. Excitation ratio: 490/440 nm; Emission intensity: 535 nm.

体外研究
(In Vitro)

Fully treated cells show hydrogenosomes with an electron-dense deposit which aggregates to a variable extent.The staining is seen in the interior of hydrogenosomes in some instances. It is also observed by microscopy that the K+/H+ ionophor nigericin does not inhibit hydrogenosomal loading with BCECF[1].
The pH-sensitive fluorescent dyes to measure cytosolic pH.
1.Prepare a 2 to 20 mM stock solution of BCECF in DMSO.
2.Prepare a 5-50 µM BCECF dye-loading solution in buffer solutions (HHBS or PBS).
3. Add 1000 µL/well (6-well plate),100 µL/well (96-well plate) or 25 µL/well (384-well plate) BCECF dye-loading solution into the cell plate.
4. Incubate the dye-loading plate in a cell incubator for 30-60 minutes.
5. Wash and replace the dye-loading solution with buffers.
6. Run the pH assay by monitoring the fluorescence at Ex/Em = 490/535 nm or 430/535 nm for ratio measurements.

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

520.44

Formula

C54H40O22
CAS 号

85138-49-4
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式

-20deg;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 : 62.5 mg/mL (120.09 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 1.9215 mL 9.6073 mL 19.2145 mL
5 mM 0.3843 mL 1.9215 mL 3.8429 mL
10 mM 0.1921 mL 0.9607 mL 1.9215 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：;10% DMSO ;; 40% PEG300 ;; 5% Tween-80 ;; 45% saline

    Solubility: ≥ 2.08 mg/mL (4.00 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (4.00 mM，饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例，取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

*以上所有助溶剂都可在 MCE 网站选购。
参考文献

  • [1]. Scott DA, et al. Analysis of the uptake of the fluorescent marker 2′,7′-bis-(2-carboxyethyl)-5(and-6)-carboxyfluorescein (BCECF) by hydrogenosomes in Trichomonas vaginalis. Eur J Cell Biol. 1998 Jun;76(2):139-45.
Kinase Assay
[1]

The cells are palced in a petri dish and BCECF present in trichomonads is fixed for electron microsopy. Controns without BCECF loading, without DAB treatment, and without UV illumination are run in parallel. Trichomonads remaine viable during the procedure, except that without BCECF they are dead and disrupted by 4 h. Then the cell are lysed. After lysis, BCECF is added to the lysate to 20 μM, and the lysate is incubated,followed by 3 washes in lysis buffer to remove free dye and resuspension of the pellet in the original volume[1].

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

  • [1]. Scott DA, et al. Analysis of the uptake of the fluorescent marker 2′,7′-bis-(2-carboxyethyl)-5(and-6)-carboxyfluorescein (BCECF) by hydrogenosomes in Trichomonas vaginalis. Eur J Cell Biol. 1998 Jun;76(2):139-45.

BCECF-AM Solution BCECF-AM溶液 品牌：Chemodex

发表于由

BCECF-AM Solution

BCECF-AM溶液

品牌：Chemodex
CAS No.：117464-70-7
储存条件：-20°C
纯度：>95% (HPCE)
产品编号

(生产商编号)

 等级 规格 运输包装 零售价(RMB) 库存情况 参考值

CDX-C0603-M001

 – 1 mg – 3,190.00 – –


* 干冰运输、大包装及大批量的产品需酌情添加运输费用


* 零售价、促销产品折扣、运输费用、库存情况、产品及包装规格可能因各种原因有所变动，恕不另行通知，确切详情请联系上海金畔生物科技有限公司。