Molekula
10-Undecenoic 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
10-Undecenoic acid is a unsaturated fatty acid used in pharmaceuticals, cosmetics, and polymer synthesis. It serves as the active ingredient in topical antifungal products and is also used as a food flavoring agent and as a cosmetic ingredient. It is a clear to pale yellow liquid with a characteristic odor. Available in 100g, 500g, and 1kg packaging, it has a CAS number of 112-38-9, molecular formula of CH₂=CH(CH₂)₈COOH, and a molecular weight of 184.28 g/mol. Store at ambient temperature. Signal word: Warning. Molekula supplies 10-Undecenoic 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
On backorder — expected to ship by 21 November 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.
-
1 kg — £89.70 per pack ex VAT · £107.64 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 | Light yellow to yellow clear liquid/milky white solid |
| Refractive Index | 1.448 -1.450 (20°C) |
| Melting Point | ~22°C |
| Assay | ≥98.0% |
| Relative density | 0.910 - 0.913 (25°C) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 148 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 24.5 °C |
| Boiling Point | 137 °C at 2 mmHg |
| Solubility (other solvents) | Insoluble in water; soluble in alcohol and ether |
Source: PubChem CID 5634 (Human Metabolome Database (HMDB), Joint FAO/WHO Expert Committee on Food Additives (JECFA))
Identification
| Property | Value |
|---|---|
| SKU | 20558613 |
| CAS Number | 112-38-9 |
| IUPAC Name | undec-10-enoic acid |
| EC Number | 203-965-8 |
| Molecular Formula | CH2=CH(CH2)8COOH |
| Molecular Weight | 184.28 |
| Exact Mass | 184.1463 |
| SMILES | C=CCCCCCCCCC(=O)O |
| InChIKey | FRPZMMHWLSIFAZ-UHFFFAOYSA-N |
| InChI | InChI=1S/C11H20O2/c1-2-3-4-5-6-7-8-9-10-11(12)13/h2H,1,3-10H2,(H,12,13) |
| PubChem CID | 5634 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29161950 |
| Tariff Code | 2916191000 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- 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
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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.
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
- 10-Hendecenoic acid
- 10-Undecylenic acid
- Declid
- FEMA No. 3247
- Kyselina undecylenova
- Renselin
- Sevinon
- Undec-10-enoic acid
- undecylenate
- undecylenic acid
Frequently asked questions
What is 10-Undecenoic acid used for?
It is primarily used as a monomer in polymer synthesis and as a precursor in the production of specialty chemicals and pharmaceuticals.
What is the chemical formula and molecular weight of 10-Undecenoic acid?
The formula is CH2=CH(CH2)8COOH with a molecular weight of 184.28 g/mol.
How should 10-Undecenoic acid be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade of 10-Undecenoic acid is available?
Available in technical grade; specific purity details can be provided upon request.
Can Molekula supply 10-Undecenoic acid in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with an order of 10-Undecenoic acid?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.