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Acetaldehyde

CAS Number
75-07-0
EC Number
200-836-8
Chemical Formula
C2H4O
Molecular Weight
44.05 g/mol

Description

Acetaldehyde (CAS 75-07-0 ), also known as ethyl aldehyde and acetic aldehyde, is a short-chain aldehyde used primarily as a chemical intermediate and flavoring agent across food, fragrance, and pharmaceutical manufacturing. Its reactive carbonyl group makes it a building block for synthesizing a broad range of downstream compounds at industrial scale. In food and beverage production, this compound contributes fresh, fruity, and ethereal notes. Known by FEMA 2003 , it is essential to flavor formulations, particularly in dairy, fruit, and alcoholic beverage profiles. Fragrance manufacturers use it as an intermediate in aldehyde-based perfume accords. It supports the characteristic clean, soapy top notes found in classic fine fragrance compositions. In pharmaceutical synthesis, it functions as a precursor in the production of acetic acid and pyridine derivatives. The material is also used for other active pharmaceutical intermediates. It sees use as a preservative intermediate in certain industrial applications where controlled antimicrobial action is required during processing. The product is supplied as a liquefied, low-boiling liquid, typically handled and shipped under refrigeration or pressure. Food-grade material conforming to FCC specifications is available for flavor applications. Technical-grade material is supplied for industrial synthesis and chemical manufacturing use. This ensures high purity and reliability for large-scale production requirements across various global industrial sectors. Contact us for supply of Acetaldehyde Request Quote

Other Names (Synonyms)

ethyl aldehyde | acetic aldehyde | aldehyde | ethanal | Aldeide acetica | Acetic ethanol | Octowy aldehyd

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-123.5 °C
Boiling Point21 °C
Density0.788 g/cm³ @ Temp: 16 °C
Flash Point133 °F
AppearanceAcetaldehyde is a flammable, volatile, colorless liquid, or gas. It has a characteristic, penetrating, fruity odor.
ColorWhite to off-white
OdorPungent, fruity odor detectable at 0.0068 to 1000 ppm (mean = 0.067 ppm)
Formsolution
Water Solubility> 500 g/L (20 ºC)
Vapor Pressure52 mm Hg ( 37 °C)
Refractive Indexn 20/D 1.377
pH5 (10g/l, H2O, 20℃)
Log P-0.16

Safety & Handling

Danger
GHS02· FlammableGHS07· IrritantGHS08· Health HazardGHS06· Toxic

Hazard Statements

H224Extremely flammable liquid and vapor
H302Harmful if swallowed
H311Toxic in contact with skin
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
H336May cause drowsiness or dizziness
H341Suspected of causing genetic defects
H350May cause cancer
H351Suspected of causing cancer
H360May damage fertility or the unborn child
H361Suspected of damaging fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H402Harmful to aquatic life

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233Keep container tightly closed.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P242Use non-sparking tools.
P243Take action to prevent static discharges.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P262Do not get in eyes, on skin, or on clothing.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off immediately all contaminated clothing and wash it before reuse.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P235Store in a well-ventilated place. Keep cool.
P353IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29121200
UN Number1198
ADR Class3
Packing GroupIII
Storage Class3 - Flammable liquids
WGK (Germany)2