| Description | L-Pyroglutamic acid β-naphthylamide (PYR) is a derivative of glutamic acid. |
| Synonyms | PYR |
| molecular weight | 254.28 |
| Molecular formula | C15H14N2O2 |
| CAS | 22155-91-5 |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |