Molekula
Butyraldehyde
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
Butyraldehyde is a colorless, flammable liquid used in the synthesis of resins, plastics, and pharmaceuticals. It is a key intermediate in organic chemistry and industrial manufacturing. CAS: 123-72-8, Molecular Formula: C₄H₈O, Molecular Weight: 72.11 g/mol, Storage: 2 to 8 °C, Signal Word: Danger. Molekula supplies Butyraldehyde 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Water | ≤ 0.1% |
| Assay | ≥ 99.4% |
| Acidity | ≤ 0.15 |
| Acid number | ≤ 1.0 mg KOH/g |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 10 °C |
| Transport Class | 3 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Liquid |
| Odour | Characteristic, pungent, aldehyde odor |
| Melting Point | -96.86 °C |
| Boiling Point | 74.8 °C |
| Density | 0.8016 g/cm³ 20 °C |
| Water Solubility | 71 g/L at 25 °C |
| Solubility (other solvents) | Soluble in water; miscible with ethanol; very olubl ein acetone, benzene; slightly soluble in chloroform |
| Vapour Pressure | 12.2 kPa at 20 °C |
| Refractive Index | 1.3843 |
| log P (octanol/water) | 0.88 |
Source: PubChem CID 261 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90036003 |
| CAS Number | 123-72-8 |
| IUPAC Name | butanal |
| EC Number | 204-646-6 |
| Molecular Formula | CH3CH2CH2CHO |
| Molecular Weight | 72.11 |
| Exact Mass | 72.0575 |
| SMILES | CCCC=O |
| InChIKey | ZTQSAGDEMFDKMZ-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H8O/c1-2-3-4-5/h4H,2-3H2,1H3 |
| PubChem CID | 261 |
| UN Number | UN1129 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29121925 |
| Tariff Code | 29121900 |
Safety & GHS
-
Flammable
GHS02
-
Health Hazard
GHS07
Hazard statements
- H225 Highly flammable liquid and vapour
- H319 Causes serious eye irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- 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
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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
- 1-butanal
- Butal
- Butaldehyde
- butanal
- Butanaldehyde
- Butylaldehyde
- Butyral
- Butyric aldehyde
- n-Butanal
- n-butyraldehyde
Frequently asked questions
What is butyraldehyde used for?
Butyraldehyde is primarily used as a chemical intermediate in the production of plastics, resins, and other organic compounds, including butyric acid and 2-ethylhexanol.
What is the chemical formula and molecular weight of butyraldehyde?
The formula is CH3CH2CH2CHO with a molecular weight of 72.11 g/mol.
How should butyraldehyde be stored?
It should be stored at temperatures between 2 to 8 °C, protected from light and moisture.
What grade of butyraldehyde does Molekula supply?
Molekula supplies butyraldehyde in technical grade, suitable for industrial and laboratory use.
Can Molekula supply butyraldehyde in bulk?
Yes, Molekula can supply butyraldehyde in bulk quantities; please contact our sales team for volume pricing and delivery options.
What documentation comes with a butyraldehyde order?
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.