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Product FOB Price Min.Order Supply Ability Supplier
Undecenoic acid
Cas No: 112-38-9
No Data 1 Gram 1-1000 Metric Ton/Day Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier
high purity 112-38-9 10-Undecenoic acid
Cas No: 112-38-9
USD $ 1.9-2.5 / Kilogram 1 Kilogram 999999 Kilogram/Year Hangzhou Dingyan Chem Co., Ltd Contact Supplier
10-undecenoic acid
Cas No: 112-38-9
USD $ 10000.0-10000.0 / Gram 1000 Gram 10 Metric Ton/Month Hebei yanxi chemical co.,LTD. Contact Supplier
Undecylenic acid
Cas No: 112-38-9
No Data No Data No Data Chemwill Asia Co., Ltd. Contact Supplier
High Quality 99% 112-38-9 Undecenoic acid Manufacturer
Cas No: 112-38-9
USD $ 0.1-0.1 / Gram 1 Gram 100 Metric Ton/Year Xi'an Xszo Chem Co., Ltd. Contact Supplier
Factory Supply Undec-10-enoic acid
Cas No: 112-38-9
No Data 1 1 Ality Chemical Corporation Contact Supplier
Cas No: 112-38-9
No Data 10 Milligram Amadis Chemical Co., Ltd. Contact Supplier
Undecenoic acid
Cas No: 112-38-9
No Data No Data No Data Shanghai Sunwise Chemical Co., Ltd Contact Supplier
Cas No: 112-38-9
No Data 1 Metric Ton 10 Metric Ton/Day Henan Tianfu Chemical Co., Ltd. Contact Supplier
High purity 10-Undecenoic acid CAS:112-38-9
Cas No: 112-38-9
No Data 10 Gram 1000 Metric Ton/Month Hubei XinRunde Chemical Co., Ltd Contact Supplier

112-38-9 Usage

Chemical Properties

Undecylenic acid is an organic unsaturated fatty acid derived from castor oil. It is the common name of 10-undecenoic acid, (CH2CH(CH2)8COOH). It is used in the manufacture of pharmaceuticals, cosmetics and perfumery, including antidandruff shampoos , antimicrobial powders and as a musk in perfumes and aromas. Undecylenic acid is produced by cracking of castor oil under pressure.

Clinical Use

10-Undecenoic acid (Desenex, Cruex) obtained fromthe destructive distillation of castor oil. Undecylenic acidis a viscous yellow liquid. It is almost completely insolublein water but is soluble in alcohol and most organicsolvents.Undecylenic acid is one of the better fatty acids for useas a fungicide, although cure rates are low. It can be used inconcentrations up to 10% in solutions, ointments, powders,and emulsions for topical administration. The preparationshould never be applied to mucous membranes because it isa severe irritant. Undecylenic acid has been one of theagents traditionally used for athlete’s foot (tinea pedis).Cure rates are low, however.


ChEBI: An undecenoic acid having its double bond in the 10-position. It is derived from castor oil and is used for the treatment of skin problems.

Chemical Properties

10-Undecenoic acid has a characteristic pungent odor.


Undecylenic acid can be used in silicon-based biosensors. Monolayers can be made on bare silicon transducer surfaces with the help of covalent bonds between silicon atom and the double bonds of undecylenic acid. The carboxylic acid groups remain available for the conjugation of biomolecules such as DNA or proteins.


Reported found as a metabolite in Rhodotorula glutinis var. lusitanica; naturally occurring in the essential oils of Juniperus chinensis, Thujopsis dolabrata and skim milk powder

Purification Methods

Purify the acid by repeated fractional crystallisation from its melt or by distillation in a vacuum. [Beilstein 2 IV 1612.]


Undecylenic acid, like zinc undecylenate, is very effective as an external drug for treating moderate dermatophyte infections and yeast dermatitis, but it is not effective for shingles and for candida infections. Synonyms of this drug are benzevrine, micocid, undetin, and others.


used as antifoaming and surface active agent. As its sulfo – succinate derivative it is used in anti-dandruff shampoos


From malonic acid; by pyrolysis of ricinoleic acid or castor oil.

Chemical Properties

Light-colored liquid; fruity-rosy odor. Almost insoluble in water; miscible with alcohol, chloroform, ether, benzene, and fixed and volatile oils. Combustible.

Chemical Synthesis

Undecylenic acid, 10-undecylenic acid (35.4.7), is synthesized by pyrolysis at 400°C and low pressure (50 mm) an oxyderivative of oleic acid—ricinoleic acid—the glyceride of which is the main ingredient of castor oil.


silicon-based biosensors natural fungicide chemical intermediate in fragrance and flavours cosmetics & personal care: highly effective natural antimicrobial and preservative properties undecylenic acids-based diols and polyols additive in cutting fluids (fungicide or as triethanolamine salt as rust inhibiting additive)


Undecylenic acid (C11) or also called 10-undecenoic acid is an organic unsaturated fatty acid derived from castor oil by cracking. Undecylenic acid is an FDA approved active ingredient in medications for skin infections, and relieves itching, burning, and irritation. In technical applications it is used because if its antifungal properties.appearance (25°C) White or very pale yellow crystalline mass or clear colourless pale yellow liquid acid value mg KOH/g 295 - 304 saponification mg KOH/g 295 - 304 iodine value) gI2/100g 132 - 136 congealing point °C 23 - 24 Purity by GC % min. 99%

112-38-9 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Alfa Aesar (A19122)  10-Undecenoic acid, 99%    112-38-9 250g 299.0CNY Detail
Alfa Aesar (A19122)  10-Undecenoic acid, 99%    112-38-9 1000g 653.0CNY Detail
USP (1705505)  Undecylenicacid  United States Pharmacopeia (USP) Reference Standard 112-38-9 1705505-200MG 4,647.24CNY Detail
Sigma-Aldrich (73537)  10-Undecenoicacid  analytical standard 112-38-9 73537-1ML 458.64CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017


1.1 GHS Product identifier

Product name 10-undecenoic acid

1.2 Other means of identification

Product number -
Other names 10-Undecenoic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

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