pkg of 1 kit
protect from light
λex 490 nm; λem 502 nm (PKH67 dye)
fluorometric
ambient
room temp
Danger
Eye Irrit. 2 - Flam. Liq. 2
3 - Flammable liquids
WGK 1
57.2 °F - closed cup
14 °C - closed cup
输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ (Lot或Batch)字后找到。
为方便起见,与您过往购买产品相关的文件已保存在文档库中。
如何查找产品货号
在网站页面上,产品编号会附带包装尺寸/数量一起显示(例如:T1503-25G)。请确保 在“产品编号”字段中仅输入产品编号 (示例: T1503).
示例
其它示例:
705578-5MG-PW
PL860-CGA/SHF-1EA
MMYOMAG-74K-13
1000309185
输入内容 1.000309185)
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如何查找COA批号
批号可以在产品标签上"批“ (Lot或Batch)字后面找到。
如果您查询到的批号为 TO09019TO 等,请输入去除前两位字母的批号:09019TO。
如果您查询到的批号含有填充代码(例如05427ES-021),请输入去除填充代码-021的批号:05427ES。
如果您查询到的批号含有填充代码(例如 STBB0728K9),请输入去除填充代码K9的批号:STBB0728。
部分情况下,可能未在线提供COA。如果搜索不到COA,可在线索取。
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
In general, slow loss of fluorescence has been observed with PKH1 and PKH2 in in vivo studies and it is likely that PKH67 may also slowly lose fluorescence. Leakage (or loss of staining intensity) may also occur due to cell-to-cell transfer of the dye. The most common cause of cell-to-cell dye transfer is inadequate washing of the cells. Wash cells 3-5 times after labeling and transfer samples to new tubes between washes.
Labeled cells that have been washed can be visualized in culture up to 100 days after staining (for non-dividing cells). The dye itself is stable and will divide equally when the cells divide. After staining with PKH dyes, you can observe as many as 8 divisions depending on how brightly the cells were stained initially and the amount of surface area on the cells. Most commonly, 4-6 divisions can be visualized.
Over-labeling of the cells will result in loss of membrane integrity and reduced cell recovery. Methods for improving cell viability can be found on the troubleshooting guide.
A protocol for visualization of tissue sections can be found in the technical bulletin. For visualization of stained cells by immunofluorescence or flow cytometry, the cells can be fixed in 2% paraformaldehyde for 15 minutes. The use of other organic solvents will extract the dye from the cells. If internal labeling is desired, the cells can be permeabilized with saponin (50-75 μg/mL). Here is the link to the Troubleshooting Guide.
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
PKH2 was one of the early PKH dyes. The PKH67 dye has a longer aliphatic tail. There is reduced cell-celldye transfer for PKH67 as compared with PKH2.
This kit can stain 50 × 107 cells if used as directed (1 × 107 cells stained with 2 × 10-6 M PKH67).
The spectra can be found on the product insert.The product has a maximum excitation at 490 nm and maximum emission at 502 nm.
As long as the cell has an intact membrane, the PKH76 dye can label the cell.
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.
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.
Ask a Scientist here.
默克提供用于细胞荧光标记的PKH LINKER试剂盒,PKH荧光细胞接头试剂盒使用获得专利的荧光细胞接头技术将报告分子结合到细胞膜中。
PKH dyes are easy to use and achieve stable, uniform, and reproducible fluorescent labeling of live cells. PKH dyes are non-toxic membrane stains which produce high signal to noise ratio.
Lipophilic cell tracking dyes enable cancer biologists to track tumor and immune cell functions both in vitro and in vivo. Read the article to choose a right membrane dye kit for cell tracking and proliferation monitoring.
亲脂性细胞追踪染料使癌症生物学家能够在体外和体内追踪肿瘤和免疫细胞功能。阅读文章,选择适合细胞追踪和增殖监测的膜染料试剂盒。
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