4% (w/v) Formaldehyde from Cell Signaling Technology is a ready-to-use fixative agent for fluorescent immunocytochemical and flow cytometry assays. It is formulated in 1X PBS, methanol-free, prepared from high-quality paraformaldehyde, and packaged under an inert atmosphere of nitrogen.
Apply directly to cells or tissue to achieve fixation with 4% formaldehyde. This product may be diluted with 1X PBS to enable fixation with a lower percentage of formaldehyde if desired. For best results, follow the antibody-specific protocol to identify the optimal concentration and duration of formaldehyde fixation.
Store at room temperature. Stable for 12 months when left unopened. Use within one month once opened.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
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