Substance profile
4H-3,1-benzoxazine-2,4(1H)-dione
4H-3,1-benzoxazine-2,4(1H)-dione is prism from alc or glacial acetic acid; crystals from alcohol or dioxane.
01 · Identification
What 4H-3,1-benzoxazine-2,4(1H)-dio… is
4H-3,1-benzoxazine-2,4(1H)-dione is prism from alc or glacial acetic acid; crystals from alcohol or dioxane. It melts at 243 °C.
Under the GHS it carries the signal word Warning.
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H319 | Causes serious eye irritation. |
| H317 | May cause an allergic skin reaction. |
Precautionary statements: P261, P264, P272, P280, P305, P313, P333, P337, P338
03 · Physical and chemical properties
4H-3,1-benzoxazine-2,4(1H)-dio… properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 243 °C (469.4 °F) | decomposes | HSDB |
| Solubility | MISCIBLE IN WATER, HOT ALC, AND ACETONE; INSOL IN ETHER, BENZENE, AND CHLOROFORM | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.