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.
We are currently only offering Chymyotrypsin, Human Pancreas (Cat. No. 230900) as a possible alternative. Please read the alternative product documentation carefully and contact technical service if you need additional information.
Native chymotrypsin from bovine pancreas. Endotoxins removed chromatographically. An endoproteinase that preferentially hydrolyzes peptide bonds involving carboxyl groups of aromatic amino acids. Readily acts upon amides and esters of susceptible amino acids. May be used for tissue dissociation when combined with trypsin and elastase.
| Product information | |||
|---|---|---|---|
| Form | Liquid | ||
| Formulation | In sterile-filtered 0.9% sodium chloride. | ||
| Molar mass | 25100 | ||
| Avoid freeze/thaw | Yes | ||
| Specific activity | ≥1000 units/mg protein | ||
| 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. | ||
| Purity | ≥90% by HPLC | ||
| Contaminants | Endotoxins ≤8 EU/mg; trypsin ≤25 units/mg protein | ||
| 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 |
Dry Ice Only
Harmful |
||
| Safety information | |||
|---|---|---|---|
| S Phrase |
S: 24-26-36/37 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. |
||
