Esterase
CAS: 9013-79-0
Category: Natural Products
| Purity | Biochemical Grade ≥80% protein content, Research Grade ≥90% activity-based purity, High Purity Grade |
| Molecular Formula | Not applicable (enzyme protein with variable amino acid composition) |
| Molecular Weight | Not fixed (enzyme macromolecule, molecular weight |
| Appearance | White to off-white lyophilized powder or amorphous solid. May appear pale yellow depending on enzyme source and stabilizers. |
| Packaging | 100 mg/500 mg/1 g glass vials with desiccant; 5 g/10 g aluminum foil bags with polyethylene liner; 25 g/100 g/500 g sealed containers for bulk enzyme preparations. |
| Testing Indicators | Appearance — Visual inspection; Protein content — Bradford assay or BCA assay; Enzyme activity — p-nitrophenyl acetate hydrolysis assay; Specific activity — activity units per mg protein; Purity — SDS-PAGE and HPLC; Identity — LC-MS/MS peptide mapping or immunological identification; Moisture — Karl Fischer titration; Microbial contamination — Microbial limit testing; Residual host cell proteins — ELISA or proteomic analysis. |
| Storage Notes | Store at 2-8°C for short-term storage and -20°C or below for long-term storage. Protect from moisture, heat, and direct sunlight. Avoid repeated freeze-thaw cycles. Cold-chain transportation is recommended. |
| Lead Time | 10 days |
A hydrolase enzyme that catalyzes ester bond hydrolysis. Used in biochemical research, enzymatic synthesis, pharmaceutical development, enzyme kinetics studies, chiral resolution of compounds, synthesis of pharmaceutical intermediates, and enzyme inhibitor screening.