Undecylenic Acid

DescriptionUndecylenic 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%

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

Uses10-Undecenoic Acid, is used for the manufacture of pharmaceuticals, cosmetics and perfumery, including antidandruff shampoos, antimicrobial powders and as a musk in perfumes and aromas.

UsesUndecylenic 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.

Usessilicon-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)

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

General Description10-Undecenoic acid undergoes copolymerisation with ethylene using the metallocene catalyst system Cp2ZrCl2 / methylaluminoxane.