| Customization: | Available |
|---|---|
| CAS No.: | 112-38-9 |
| Formula: | C11h20o2 |
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Basic Information
Product Name: Undecylenic Acid
CAS Number: 112-38-9
Molecular Formula: C11H20O2
Molecular Weight: 184.27 g/mol
Appearance: Colorless to pale yellow liquid at room temperature; may solidify into crystalline solid at low temperatures.
Pure product is odorless, while industrial grades have a slight characteristic odor.
Melting Point: 24-25°C
Boiling Point: 275°C (at standard pressure); 165-166°C (at 2 kPa)
Density: 0.910 g/cm³ (20°C)
Solubility: Slightly soluble in water (~0.1 g/100 mL, 20°C); highly soluble in organic solvents like ethanol, diethyl ether, chloroform, and benzene.Miscible with oils.
Chemical Properties
Reactions of the Unsaturated Double Bond:
Undergoes addition reactions (e.g., hydrogenation to form undecanoic acid), oxidation, and polymerization.
The double bond is prone to slow oxidation by atmospheric oxygen, accelerated by heat or light.
Carboxylic Acid Properties:
Exhibits acidic behavior, reacting with bases to form salts (e.g., zinc undecylenate, sodium undecylenate).
Undergoes esterification (e.g., forming ethyl undecylenate with ethanol), acyl halide formation, and amidation.
Stability:
Stable under normal conditions but should be stored in a dark, sealed container away from oxidizing agents.
Main Applications
Pharmaceutical Industry:
Antifungal Agent: Its zinc and sodium salts are used in formulations for athlete's foot creams and tinea lotions (e.g., "Jiaoqiling").
Mechanism: Disrupts fungal cell membrane permeability to inhibit growth.
Chemical and Materials Science:
Synthetic Resins and Rubbers: Used as a comonomer in ethylene-undecylenic acid copolymers (for hot-melt adhesives, coatings) or to modify rubber for improved elasticity and weather resistance.
Surfactants: Precursor for undecylenic acid esters (e.g., alkanolamides) in detergents and emulsifiers.
Fragrance and Cosmetics:
Small-scale use in cosmetic fragrances for a fresh, oily aroma; ester derivatives (e.g., ethyl undecylenate) may serve as food flavorings (subject to food additive standards).
Other Uses:
As a fatliquor raw material in leather industry;
Intermediate for synthesizing insect pheromones or plant growth regulators in agriculture.
Safety and Handling
Toxicity:
Low toxicity; LD50 (oral, rat): >10 g/kg (practically non-toxic).
High concentrations may irritate skin and eyes; avoid direct contact.
Storage:
Store in a cool, dry place in a sealed container, away from fire sources and oxidizers, protected from light.
Environmental Impact:
Biodegradable; generally harmless to water bodies, but large-scale spills into natural water systems should be avoided.
| Liquid products | Drum of 5kg ,10 kg ,25 kg ,50 kg 200 kg ,250 kg . 1000 kg IBC drum. TANK with 20 tons ,25 tons . |
| Solid products | Bag of 1 kg ,2 kg ,5 kg ,25 kg ,500kg ,1000 kg . Drum of 25 kg and 50 kg. |
Packaging can be customized according to customer requirements.
Qingdao Jinyu Chemical Co., LTD,which is located in Qingdao City, China, with registered capital of RMB 10 million, is a dynamic chemical import and export enterprise with customer demand as its own responsibility. The founder has been engaged in the chemical industry for more than 20 years. With professional technical and marketing personnel, diversified cooperative factories with synthetic technology and efficient logistics management, we provide services to customers all over the world. After years of hard work, we have selected a number of excellent chemical production cooperative enterprises in China. These enterprises have their own advantages in different chemical synthesis fields. They have passed the strict inspection of suppliers by many customers and formed a long-term and stable strategic partnership with customers. With our partners' excellent equipment, well-trained employees and mature technology, we also continue to provide customers with more products.
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