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Undecenoic acid(CAS#112-38-9)

Chemical Property:

Molecular Formula C11H20O2
Molar Mass 184.28
Density 0.922g/cm3
Melting Point 23-25℃
Boling Point 300.797°C at 760 mmHg
Specific Rotation(α) n20/D 1.449 (lit.)
Flash Point 145.815°C
Water Solubility INSOLUBLE
Solubility Slightly soluble in water, can be mixed with ethanol, chloroform, ether, volatile oil or fatty oil.
Vapor Presure 0mmHg at 25°C
Appearance Shape Crystalline Low Melting Solid or Liquid, color Pale yellow
pKa 4.78±0.10(Predicted)
Storage Condition Store below +30°C.
Refractive Index 1.456
MDL MFCD00004442
Physical and Chemical Properties Chemical properties with luster colorless liquid, with special fragrance of fruit. Melting point 24.5 ℃, boiling point 275 ℃(100kPa),165 ℃(2.0kPa),137 ℃(0.267kPa), relative density 0.4075(25/4 ℃), refractive index 1.4464, flash point 148 ℃. Slightly soluble in water, soluble in ethanol and ether.
Use For the synthesis of gamma-undecanolactone and other spices

Product Detail

Product Tags

Hazard Symbols Xi - Irritant
Risk Codes R36/38 - Irritating to eyes and skin.
R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Description S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39 - Wear suitable gloves and eye/face protection
S61 - Avoid release to the environment. Refer to special instructions / safety data sheets.
UN IDs UN 3261 8/PG 2
WGK Germany 1
RTECS YQ2975000
TSCA Yes
HS Code 29161910
Toxicity LD50 in mice (g/kg): 8.15 orally; 0.960 i.p. (Newell)

 

Introduction

Colorless liquid with luster and special fragrance of fruit. Slightly soluble in water, soluble in ethanol and ether.

Application
Undecenoic acid (CAS 112-38-9), also known as undecylenic acid, is a naturally derived unsaturated fatty acid obtained from castor oil. It is widely recognized for its potent antifungal and antibacterial properties, making it a key ingredient in over-the-counter topical medications for treating fungal skin infections such as athlete’s foot, ringworm, and jock itch. In the pharmaceutical industry, it serves as an intermediate for the synthesis of antifungal agents, antiseptics, and cosmetic preservatives. Undecenoic acid is also used in the production of specialty polymers, plasticizers, lubricants, and corrosion inhibitors. In personal care, it functions as a mild preservative and emollient in shampoos, soaps, and creams. Additionally, its reactivity allows it to be a building block for flavors, fragrances, and high-performance coatings. Xinchem offers custom synthesis, custom chemical synthesis, and contract manufacturing of high-purity undecenoic acid with flexible scaling from R&D to commercial tons. Contact us today for a competitive quote and reliable global supply.


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