| CAS | 21866-90-0 |
| Sequence | H-Pro-Pro-Pro-Pro-OH |
| Sequence Single | PPPP |
| Molecular Formula | C20H30N4O5 |
| Molecular Weight | 406.48 |
| Technology | Synthetic |
| Storage | -20°C, avoid light, cool and dry place |
| Description | H-Pro-Pro-Pro-Pro-OH was used as an internal standard in the quantitative determination of the antihypertensive (ACE-inhibiting) peptides IPP and VPP in cheese by HPLC-MS3. |
| References | 1. Dynorphin A(1-8) in human placenta: amino acid sequence determined by tandem mass spectrometry. A.Agbas et al., Peptides, 16, 623 (1995) |