Biochem/physiol Actions

Inhibitor Type: Protease Inhibitors

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

General description

Chymostatin. M.W. 604.92

Mixture of types A, B and C. Inhibits Chymotrypsin-like serine proteases including alpha, beta, gamma and delta chymotrtrypsins.

Sequence:

[(S)-1-Carboxy-2-Phenylethyl]-Carbamoyl-a-[2-Iminohexahydro-4(S)-Pyrimidyl]-(S)-Glycyl-X-Phenylalaninal

X: L-Leu (type A), L-Ile (type B), L-Val (type C)

Working concentrations 10-100μM.

Stable for several hours. Soluble in DMSO and glacial acetic acid. Solutions are stable for a month at -20ºC.

5mg/825 microliters in DMSO = 10mM solution.

Dilute 1:100 for 100μM working solution.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

Physical form

Lyophilized. Dissolve in dimethylsulfoxide (DMSO). After powder is thoroughly dissolved, dilute the DMSO solution with 0.9% NaCl. The concentration of DMSO should be maintained at 10% or higher. Otherwise chymostatin may precipitate from the solution.



Example: Reconstitute 1 mg of chymostatin with 1.65 mL of DMSO. Then add 14.85 mL of 0.9% NaCl. This furnishes a 10-4 M solution. No preservatives added.

Storage and Stability

Maintain lyophilized material at -20°C for up to one year. Store reconstituted product in aliquots at -20°C for up to 3-4 weeks. Do not thaw and refreeze.