Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
11 - Combustible Solids
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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.
The molecular weight of alpha chymotrypsin, reported in the literature, is approximately 25 kDa.
It is recommended to reconstitute Product No. C4129 in 1 mM hydrochloric acid containing 2 mM calcium chloride. The calcium functions as a stabilizer, and possibly an activator, of the enzyme.
Stock solutions prepared in 1 mM HCl, containing 2 mM calcium chloride, can be stored at -20 ° for about one week.
The pH optimum for alpha-chymotrypsin is between pH 7.5-8.5. Please see the following reference: Wilcox, P.E., Chymotrypsingogens-chymotrypsins, Methods in Enzymology, 19, 64-80 (1970).
Ask a Scientist here.
Analytical Enzyme Chymotrypsin: Chymotrypsin is produced in the acinar cells of the pancreas as the inactive precursor, chymotrypsinogen.
Follow our procedure for the determination of a chymotrypsin activity. This enzymatic assay of alpha chymotrypsin guides you through the entire process and necessary calculations.