| Appearance | Off-white to white crystalline powder |
| chemical purity | 99% min. |
| optical activity | [α]20/D −4.5±0.5°, c = 1 in methanol |
| mp | 56-61 °C(lit.) |
| Water | 0.5% max. |
| Signal word | Danger |
| Hazard statements | H315-H334 |
| Precautionary statements | P261-P342 + P311 |
| Personal Protective Equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
| Hazard Codes | Xi |
| Risk Statements | 38-43 |
| Safety Statements | 36/37 |
| WGK Germany | 3 |
The key intermediate of Valaciclovir HCl