If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
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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.
Product No. C100 normally ships at ambient temperature. If desired, it can be shipped on wet ice upon special request. C100 cannot be shipped on dry ice. That is, the suspension can be harmed by freezing.
Most of the protein (catalase) in Product No. C100 is a solid in suspension, with a small percentage actually in solution.
C100 is not necessarily sterile. But it does contain a preservative (0.1% thymol), which should prevent microbial growth.
There is no "official" specification, but the lot history shows that it has varied from 15-100 mg/mL. The concentration is provided on the certificate of analysis for each lot. Note that most of the catalase is typically a solid in suspension, with a small percentage actually in solution.
C-100 was used as a product number for calmidazolium chloride until about 1999 by Research Biochemicals International (RBI), which is now part of Sigma-Aldrich. Calmidazolium chloride is currently listed under Sigma Product No. C3930. So now we use the C100 only for catalase.
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