Is propanol toxic to humans?

2025 10/28

Chemical and physical properties of n-propanol:

Molecular Formula: CH3CH2CH2OH / n-PrOH

Synonyms: 1-propanol, n-propanol alcohol, propan-1-ol, propyl alcohol, n-PrOH, 1-hydroxypropane, propionic alcohol

Cas Number: 71-23-8

Molecular Mass: 60.096 g/mol-1

Exact Mass: 60.057515 g/mol

Flashpoint: 77 °F / 22 °C

Boiling Point: 207 °F (at 760 mm Hg) / 97.2 °C

Melting Point: -195 °F / -126 °C

Vapour Pressure: 1.99 kPa (at 20 °C)

Water Solubility: miscible

N-propanol forms naturally during fermentation processes. The human gastrointestinal microbiota can also produce small amounts.

Is propanol toxic to humans?

1-propanol and its isomer isopropyl alcohol is toxic to humans, with toxicity varying by exposure route and concentration. Inhalation of high concentrations of 1-propanol vapors can irritate the respiratory tract, causing dizziness, headaches, or nausea.

R11 - Highly flammable.

R41 - Causes serious damage to eyes.

R67 - Vapours may cause drowsiness and dizziness.

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