The table below lists shelf-life expectations for Cell Signaling Technology (CST) products. CST products can be expected to perform at optimal levels during the shelf-life period when stored under the recommended conditions. The product you receive will have one of two dates listed on its packaging. If the date is preceded by “Ref:”, then it is a “Reference Date”. This date indicates the date (month and year) that the product was filled or packaged. Vial filling and packaging dates are not always the same. For single component products such as individual antibodies, the starting point for the expected shelf-life is indicated by the reference date printed on the vial label. For multi-component kit products the reference date printed on the barcoded kit box label indicates the starting point for the expected shelf-life. If the date is preceded by “Best:”, then it is a “Best By” date. This date indicates the end point of the shelf life of the product. Please expect the product to perform at optimal levels until this date, as long as it is stored under the recommended conditions.
| Product Type | Shelf-Life (Months) |
|---|---|
| Product Type | Shelf-Life (Months) |
| Antibodies – Unconjugated | 60* |
| Antibodies – BSA and Azide Free | 36 |
| Antibodies – Biotinylated | 24 |
| Antibodies – Dye Conjugated | 24* |
| Antibodies – HRP-linked | 24 |
| Antibodies – Immobilized | 24 |
| Secondary Antibodies – Dye Conjugated | 12* |
| Secondary Antibodies – HRP- and AP-linked | 24* |
| Secondary Antibodies – Biotinylated or Immobilized | 24 |
| Assay Kits | 12* |
| Blocking Peptides | 60 |
| Buffers | 24* |
| cAMP/cGMP Assay Kits | 36 |
| Cell Extracts & Tissue Extracts | 6* |
| Cellular Dyes | 24* |
| Chemical Modulators | 24* |
| CUT&RUN Kit and Reagents | 12 |
| Cytokines and Growth Factors | 12† |
| FastScan™ ELISA Kits | 12 |
| PathScan® ELISA Antibody Pairs | 12 |
| PathScan® ELISA Kits | 12 |
| IHC Control Slides | 2 |
| IHC Kits – Prediluted Antibodies | 6 |
| LumiGlo® & SignalFire™ ECL Reagents | 12 |
| Protein MW Markers | 24 |
| Protein Controls | 6* |
| PTMScan® Kits | 60* |
| PTMScan® HS Kits | 12 |
| Recombinant Proteins (except protein controls, cytokine, growth factors) | 36 |
| Senescence Staining Kit #9860 | 24 |
| SignalSilence® siRNAs | 24 |
| SignalStain® Boost IHC Detection Reagents #8114, #8125, #18653, #31926 | 12 |
| SimpleChIP® ChIP Kits | 12 |
| SimpleChIP® Primers | 24 |
* Unless otherwise noted on the product data sheet (refer to 'Storage' section of data sheet information
† This is the stability while material is still lyophilized. Stability after solubilization can be found on product data sheet.
If you would like to know the expected shelf-life of a product that is not listed in this table please contact Technical Support.
