For general questions please contact our Customer Service:
Merck KGaA
Frankfurter Str. 250
64293 Darmstadt
Germany
Phone: +49 6151 72-0
Fax: +49 6151 72 2000
31 May 2012
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This product has been discontinued.
Please refer to our complete listing of
Native α-chymotrypsin from bovine pancreas. Catalyzes hydrolysis of peptides, amides, and esters, mostly at bonds involving the carboxyl groups of aromatic L-amino acids. Inhibited by aprotinin and antitrypsin.
Note: 1 MU = 1,000,000 units.
| Product information | |||
|---|---|---|---|
| Form | Off-white to beige crystalline powder | ||
| Molar mass | 25100 | ||
| Unit definition | One unit is defined as the amount of enzyme that will cause a decrease in absorbance of 0.0075 at 237 nm per min at 25°C, pH 7.0, using N-acetyl-L-tyrosine ethyl ester. | ||
| Activity | ≥1000 units/mg | ||
| Contaminants | Trypsin: ≤25 units/mg | ||
| Solubility | Ice cold 1 mM HCl | ||
| EC number | 3.4.21.1 | ||
| RTECS | GC3050000 | ||
| CAS number | 9004-07-3 | ||
| Merck USA index | 14, 2260 | ||
| Store and ship information | |||
|---|---|---|---|
| Storage | -20°C | ||
| Ship |
Ambient Temperature Only
Harmful |
||
| Canadian export regulations | Due to the country and/or U.S. state of origin of the animal material used in this product, this product may not be exported to Canada. | ||
| Safety information | |||
|---|---|---|---|
| S Phrase |
S: 22-24-26-36/37 Do not breathe dust. Avoid contact with skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing and gloves. |
||
| R Phrase |
R: 36/37/38-42 Irritating to eyes, respiratory system and skin. May cause sensitization by inhalation. |
||
