Molekula
Valeric acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Valeric acid is a five-carbon saturated fatty acid used in the synthesis of esters, pharmaceuticals, and as a flavoring agent. It is a colorless liquid with a pungent odor. CAS: 109-52-4, Molecular formula: C5H10O2, Molecular weight: 102.13 g/mol. Store at ambient temperature. Signal word: Danger.
Molekula supplies Valeric acid at ≥ 99.0% purity in 500 g packs, from £37.08 inc. VAT. It is made or sourced to order. Every batch ships with a certificate of analysis, and safety data sheets are available in 7 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
On backorder — expected to ship by 5 December 2026
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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500 g — £30.90 per pack ex VAT · £37.08 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 | Clear Colorless or Pale Yellow Liquid |
| Assay/Purity | ≥ 99.0% |
| Iodine value (g I2/100g) | < 5 gI2/100g |
| Acid Value (mg KOH/g) | 544 - 553 mgKOH/g |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 89 °C |
| Transport Class | 8 (6.1) |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless liquid |
| Odour | Unpleasant odor, similar to butyric acid |
| Melting Point | -34 °C |
| Boiling Point | 186.1 °C |
| Density | 0.94 (relative, water = 1) |
| Water Solubility | 24 g/L at 25 °C |
| Solubility (other solvents) | Freely soluble in alcohol, ether |
| Vapour Pressure | 0.02 kPa at 20 °C |
| Refractive Index | 1.4086 |
| pKa | pKa = 4.84 (at 25 °C) |
| log P (octanol/water) | 1.39 |
Source: PubChem CID 7991 (HSDB, DrugBank, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90027004 |
| CAS Number | 109-52-4 |
| IUPAC Name | pentanoic acid |
| EC Number | 203-677-2 |
| Molecular Formula | C5H10O2 |
| Molecular Weight | 102.13 |
| Exact Mass | 102.0681 |
| SMILES | CCCCC(=O)O |
| InChIKey | NQPDZGIKBAWPEJ-UHFFFAOYSA-N |
| InChI | InChI=1S/C5H10O2/c1-2-3-4-5(6)7/h2-4H2,1H3,(H,6,7) |
| PubChem CID | 7991 |
| UN Number | UN2922 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29156050 |
| Tariff Code | 2915609000 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H311 + H331 Toxic in contact with skin or if inhaled
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+312 IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 1-Butanecarboxylic acid
- Butanecarboxylic acid
- Kyselina valerova
- n-Pentanoate
- n-Pentanoic acid
- n-Valeric acid
- PENTANOIC ACID
- Propylacetic acid
- Valerianic acid
- Valeric acid, normal
Frequently asked questions
What is valeric acid used for?
Valeric acid is used in the synthesis of esters for fragrances and flavorings, and as a precursor in pharmaceutical and agrochemical manufacturing.
What is the chemical formula and molecular weight of valeric acid?
The formula is C5H10O2 and the molecular weight is 102.13 g/mol.
How should valeric acid be stored?
Store at ambient temperature, away from heat and incompatible materials, in a tightly sealed container.
What grade of valeric acid does Molekula supply?
Molekula supplies valeric acid with an assay of ≥ 99.0%; custom grades available upon request.
Can Molekula supply valeric acid in bulk?
Yes, Molekula can supply valeric acid in bulk quantities; please contact sales for volume pricing and availability.
What documentation comes with a valeric acid order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation available upon request.
Where can I buy Valeric acid?
Directly from Molekula, which lists Valeric acid in 500 g packs from £37.08 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is Valeric acid dangerous goods for shipping?
Yes. Valeric acid ships as dangerous goods: UN2922, class 8 (6.1), packing group III.
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.