Molekula
Acetaldehyde
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Acetaldehyde is a volatile, flammable liquid used in the synthesis of chemicals such as acetic acid, pyridine derivatives, and perfumes. It is a key intermediate in organic manufacturing. CAS: 75-07-0, Molecular Formula: CH3CHO, Molecular Weight: 44.05 g/mol, Storage: 2 to 8 °C, Signal Word: Danger. Molekula supplies Acetaldehyde from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 L — £77.70 per pack ex VAT · £93.24 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Clear Colourless Liquid |
| Assay | ≥98.5% |
| Identification (IR) | Conforms to Reference |
| Refractive Index (20ºC) | 1.32300 to 1.33700 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | -40 °C |
| Transport Class | 3 |
| Packing Group | I |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Volatile liquid or gas |
| Odour | Pungent, fruity odor |
| Melting Point | -123.4 °C |
| Boiling Point | 20.8 °C |
| Density | 0.78 (relative, water = 1) |
| Solubility (other solvents) | Miscible with ethanol, ether, benzene; slightly soluble in chloroform |
| Vapour Pressure | 101 kPa at 20 °C |
| Refractive Index | 1.3316 |
| pKa | pKa = 13.57 |
| log P (octanol/water) | -0.34 |
Source: PubChem CID 177 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 12012890 |
| CAS Number | 75-07-0 |
| IUPAC Name | acetaldehyde |
| EC Number | 200-836-8 |
| Molecular Formula | CH3CHO |
| Molecular Weight | 44.05 |
| Exact Mass | 44.0262 |
| SMILES | CC=O |
| InChIKey | IKHGUXGNUITLKF-UHFFFAOYSA-N |
| InChI | InChI=1S/C2H4O/c1-2-3/h2H,1H3 |
| PubChem CID | 177 |
| UN Number | UN1089 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2912.12.0000 |
| Tariff Code | 2912120000 |
Safety & GHS
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Flammable
GHS02
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H224 Extremely flammable liquid and vapour
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H341 Suspected of causing genetic defects
- H350 May cause cancer
Precautionary statements
- P201 Obtain special instructions before use
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Acetaldehyd
- acetic aldehyde
- Acetic ethanol
- Acetylaldehyde
- Aldehyde acetique
- Aldeide acetica
- ethanal
- ethyl aldehyde
- Octowy aldehyd
- RCRA waste number U001
Frequently asked questions
What is acetaldehyde used for?
Acetaldehyde is primarily used as a chemical intermediate in the production of acetic acid, pyridine derivatives, and other organic compounds.
What is the chemical formula and molecular weight of acetaldehyde?
The chemical formula is CH3CHO, and the molecular weight is 44.05 g/mol.
How should acetaldehyde be stored?
Acetaldehyde should be stored at temperatures between 2 and 8 °C, protected from light and air.
What grade of acetaldehyde does Molekula supply?
Molekula supplies acetaldehyde in technical grade, suitable for industrial and laboratory use.
Can Molekula supply acetaldehyde in bulk?
Yes, Molekula can supply acetaldehyde in bulk quantities; please contact our sales team for volume pricing and logistics.
What documentation comes with an order of acetaldehyde?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with GHS standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.