Rennin from calf stomach
SIGMA/R4877 - ≥20 units/mg protein
Synonym: Chymosin
CAS Number: 9001-98-3
EC Number: 232-645-0
MDL Number: MFCD00132173
Product Type: Chemical
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| composition | Protein, ≥40% |
| form | lyophilized powder |
| purified by | crystallization |
| Quality Level | 200  |
| specific activity | ≥20 units/mg protein |
| storage temp. | −20°C |
| Analysis Note: | Protein determined by biuret. |
| Application: | Rennin, also known as chymosin, is a milkclotting acid proteinase produced in the stomach of a calf. It is used in cheesemaking and to study neonatal gastric digestion . |
| Biochem/physiol Actions: | Rennin, a 323 amino acid chain, is secreted as an inactive precursor which is then converted into an active enzyme through limited proteolysis. It cleaves the peptide bond between phenylalanine and methionine in K-Casein. |
| Other Notes: | One unit will coagulate 10 mL of milk per min at 30 °C. |
| Packaging: | 100 mg in glass bottle |
| Packaging: | Package size based on protein content |
| Physical form: | Lyophilized powder containing sodium chloride |
| Symbol |   GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H315 - H319 - H334 - H335 |
| Precautionary statements | P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xn |
| Risk Statements | 36/37/38-42 |
| Safety Statements | 22-24-26-36/37 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| activity | specific activity: ≥20 units/mg protein |
| Storage Temp. | −20°C |
| Enzyme Commission (EC) Number | 3.4.23.4 ( BRENDA  | IUBMB ) |
| UNSPSC | 12352204 |