Endotoxin is the one contaminant that affects cells without the peptide doing anything. What the certificate's figure means, and what its limit hides.
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Concentration after reconstitution is one division: net content divided by volume. A worked table for every vial size in the catalogue.
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Two different molecules are sold as CJC-1295. What DAC actually is, how the masses differ, and how to tell from a certificate which one you have.
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Bacteriostatic water carries 0.9% benzyl alcohol. Why that preservative matters in cell work, and at what dilution it stops mattering.
Read the post →The blog covers buying, handling and research-design questions as they come up. The evergreen material lives in the guides: reading a certificate of analysis, storage and stability, one research guide per compound and the glossary.
New posts publish to the RSS feed. Every post is written for laboratory research use only and links to the lot certificate for any product it mentions.
One email when a new certificate is published, when a sold-out compound is back, or when a new compound is added. About twice a month, nothing else.