Molekula
Butyric acid
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
Butyric acid is a short-chain fatty acid used in pharmaceuticals, food additives, and chemical synthesis. It appears as a colorless to pale yellow liquid with a pungent odor. CAS: 107-92-6, molecular formula: CH3CH2CH2COOH, molecular weight: 88.11 g/mol. Store at ambient temperature. Signal word: Danger. Molekula supplies Butyric acid 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 — £73.20 per pack ex VAT · £87.84 inc. VAT
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 |
|---|---|
| Appearance | Colourless liquid |
| Odour | Powerful, penetrating, diffusive sour odour |
| Purity | >99% |
| Refractive Index (20ºC) | 1.3970 - 14010 |
| Specific gravity (20 ºC) | 0.9540 - 0.9650 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 72 °C |
| Transport Class | 8 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Oily liquid |
| Odour | Unpleasant, rancid odor |
| Melting Point | -5.7 °C |
| Boiling Point | 163.7 °C |
| Density | 0.96 (relative, water = 1) |
| Water Solubility | 60 g/L at 25 °C |
| Solubility (other solvents) | Miscible with ethanol, ether; slightly soluble in carbon tetrachloride |
| Vapour Pressure | 1.65 mmHg at 25 °C |
| Refractive Index | 1.3991 |
| pKa | pKa = 4.82 (at 25 °C) |
| log P (octanol/water) | 0.79 |
Source: PubChem CID 264 (HSDB, DrugBank, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90029719 |
| CAS Number | 107-92-6 |
| IUPAC Name | butanoic acid |
| EC Number | 203-532-3 |
| Molecular Formula | CH3CH2CH2COOH |
| Molecular Weight | 88.11 |
| Exact Mass | 88.0524 |
| SMILES | CCCC(=O)O |
| InChIKey | FERIUCNNQQJTOY-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H8O2/c1-2-3-4(5)6/h2-3H2,1H3,(H,5,6) |
| PubChem CID | 264 |
| UN Number | UN2820 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2915605000 |
| Tariff Code | 2915601990 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
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Serious Health Hazard
GHS08
Hazard statements
- H227 Combustible liquid
- H290 May be corrosive to metals
- H302 Harmful if swallowed
- H311 Toxic in contact with skin
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H371 May cause damage to organs
Precautionary statements
- 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
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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, 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-Butyric acid
- 1-propanecarboxylic acid
- Butanic acid
- butanoic acid
- Buttersaeure
- ethylacetic acid
- Kyselina maselna
- n-Butanoic acid
- n-Butyric acid
- propylformic acid
Frequently asked questions
What is butyric acid used for?
Butyric acid is used in the synthesis of esters for flavorings and fragrances, as a chemical intermediate in pharmaceuticals, and in research applications.
What is the chemical formula and molecular weight of butyric acid?
The formula is CH3CH2CH2COOH and the molecular weight is 88.11 g/mol.
How should butyric acid be stored?
It should be stored at ambient temperature, away from moisture and incompatible materials.
What grade of butyric acid does Molekula supply?
Molekula supplies butyric acid in technical grade; custom grades are available upon request.
Can Molekula supply butyric acid in bulk?
Yes, Molekula can supply butyric acid in bulk quantities; please contact sales for pricing and availability.
What documentation comes with a butyric acid order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.
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.