Certificate of Analysis
| Product Name: | Met-Arg-Phe-Ala |
| Catalog Number: | M50843 |
| CAS Number: | 67368-29-0 |
Physical and Chemical Properties
| Formula: | C23H37N7O5S |
| Molecular Weight: | 523.65 |
| Form: | Powder |
| Solubility: | DMSO ≥ 50 mg/mL |
| Storage: | -20°C, dry, sealed |
| Chemical Structure: |  |
Analytical Data
| QC Standard: | ≥99.0% |
| H-NMR: | Consistent with structure |
Product Information
| Description: | Met-Arg-Phe-Ala (MRFA) is a peptide. MRFA is used as a calibration standard in mass spectrometry (ESI). MRFA has been shown to be a competitive inhibitor of an enkephalin-generating endopeptidase isolated from rat brain. |
| Stability and Solubility Advice: | Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide. We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details. |