Butyraldehyde
CAS 123-72-8C4H8O72.11 g/mol
Butanal is a member of the class of butanals that consists of propane bearing a formyl substituent at the 1-position. The parent of the class of butanals. It has a role as a biomarker, a mouse metabolite and an Escherichia coli metabolite.
IUPAC: butanal
PubChem
Physical & Chemical Properties
| Melting Point | -146 °F (NTP, 1992) |
| Boiling Point | 167 °F at 760 mmHg (NTP, 1992) |
| Density | 0.803 at 68 °F (USCG, 1999) - Less dense than water; will float |
| Solubility | less than 1 mg/mL at 66 °F (NTP, 1992) |
| Flash Point | 20 °F (NTP, 1992) |
| Vapor Pressure | 91.5 mmHg at 68 °F (NTP, 1992) |
| Appearance | Butyraldehyde appears as a clear liquid with a pungent odor. Less dense than water and insoluble in water. Vapors heavier than air. |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2912
Data: UN Comtrade
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