# Butyraldehyde (ID 1129)

- **operation:** document
- **citation:** ERG 2024 ID 1129
- **title:** Butyraldehyde (ID 1129)
- **source type:** guidance
- **agency:** U.S. DOT / Transport Canada / SICT
- **status:** guidance
- **official:** true
- **published on:** 2024-04-04
- **effective on:** Not available
- **summary:** ERG2024 assigns Butyraldehyde (ID 1129) to Guide 129: Flammable Liquids (Water-Miscible/Noxious).
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1129-butyraldehyde.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1129-butyraldehyde.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1129-butyraldehyde
- **source url:** https://www.phmsa.dot.gov/erg/material?materialName=Butyraldehyde&materialUn=1129
**body:**

ERG identification number: 1129.
Material: Butyraldehyde.
Assigned response guide: Guide 129, Flammable Liquids (Water-Miscible/Noxious).
The ERG index marks this entry with P for a polymerization hazard under certain conditions.
- **truncated:** false
- **body characters:** 229