10-Undecenoic acid
10-Undecenoic acid (CAS 112-38-9), molecular formula CH2=CH(CH2)8COOH, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- Undecylenic acid

| Molecular weight | 184.28 |
|---|---|
| Linear formula | CH2=CH(CH2)8COOH |
| Assay | 98-100.5% |
| Boiling point | 137 °C/2 mmHg(lit.) |
| Density | 0.912 g/mL at 25 °C(lit.) |
| Refractive index | n25/D 1.447-1.448n20/D 1.449(lit.) |
| Solubility | water: insoluble |
| Melting point | 23-25 °C(lit.) |
| Impurities tested | fats, mineral oils, compliesin water soluble matter, compliesresidual solvents, complies≤0.001% heavy metals (as Pb) |
| Application | 10-Undecenoic acid has been used to study the methods and mechanisms for the formation of molecular monolayers on silicon surface1. It was used as starting reagent in the syntheses of pheromone (11Z)-hexadecenal and agriculturally important insect pheromones2. |
| Suitability | corresponds for degree of unsaturation |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H412Harmful to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | 149 °C / 300.2 °F |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38-52/53 |
| Safety statements (S) | 26-61 |
| Ignition residue | ≤0.1% (as SO4) |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 42650 |
|---|---|
| Transition Temp | solidification point ≥21 °C |
| Iodine Value | 131‑138 |
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 10-Undecenoic acid?
+
10-Undecenoic acid (CAS 112-38-9), molecular formula CH2=CH(CH2)8COOH, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of 10-Undecenoic acid does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 10-Undecenoic acid in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of 10-Undecenoic acid?
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10-Undecenoic acid has CAS number 112-38-9 and molecular formula CH2=CH(CH2)8COOH. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for 10-Undecenoic acid?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of 10-Undecenoic acid ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should 10-Undecenoic acid be stored?
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Store 10-Undecenoic acid in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is 10-Undecenoic acid used for?
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10-Undecenoic acid is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for 10-Undecenoic acid?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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