undecanoic acid

undecanoic acid

[¦ən¦dek·ə¦nȯ·ik ′as·əd]
(organic chemistry)
CH3(CH2)9COOH Colorless crystals, soluble in alcohol and ether, insoluble in water; melts at 29°C; used as a chemical intermediate.
References in periodicals archive ?
Undecanoic acid and sebacic acid derived from castor oil areamong the most dominant raw materials used in the production of bio based polyamide.
They were all supplied by Larodan AB (Malmo, Sweden): undecanoic acid (C11:0 FFA), triundecanoin (C11:0 TG), nonadecanoic acid (C19:0 FFA), trinonadecanoin (C19:0 TG), and 1,2-dinonadecanoyl-sn-glycero3-phosphatidylcholine (C19:0 PL).
Carboxylic acid Purity (%) [M.sub.w] (g/mol) Pentanoic acid 99 102 Hexanoic acid 98 116 Heptanoic acid 97 130 Octanoic acid 98 144 Nonanoic acid 97 158 Decanoic acid 98 172 Undecanoic acid 98 186 Dodecanoic acid 98 200 Tridecanoic acid 98 214 Tetradecanoic acid 99 228 Pentadecanoic acid 99 242 1-Bromoalkane Purity (%) [M.sub.w] (g/mol) 1-Bromohexane 98 165 1-Bromoheptane 99 179 1-Bromooctane 99 193 1-Bromononane 98 207 1-Bromodecane 98 221 1-Bromoundecane 98 235 1-Bromododecane 97 249 1-Bromotridecane 98 263 1-Bromotetradecane 97 277 1-Bromopentadecane 97 291 1-Bromohexadecane 97 305 SCH.
Eventually, the team identified capric acid, undecanoic acid and laurie acid as active compounds.
Compared with fresh motor oil, used oil contained new aliphatic and aromatic hydrocarbon compounds such as 1,3,5-trimethyl benzene, p-xylene and methyl ester undecanoic acid. FTIR bands at 1704 1603 [cm.sup.-1] were related to the presence of carbonyl groups, and bands at 869, 813 and 1603 [cm.sup.-1] were associated with new aromatic hydrocarbons including polycyclic aromatic hydrocarbons.
Likely compounds were identified as methyl ester undecanoic acid, 1,3,5-trimethyl benzene and xylene.
The word UNDECANOIC appears in the multi-word term UNDECANOIC ACID. Similar to the CONSTITUENDA problem above, UNDECANOIC could be a new mate for UNREASONING or could be a better choice than BLUE PARROT FISH.
4###C11:0; Undecanoic acid, methyl ester###7.85###0.01
These 37 components are: methyl ester of hexanoic acid, caprylic acid, capric acid, undecanoic acid, lauric acid, tridecanoic acid, myristic acid, myristoleic acid, pentadecanoic acid, pentdecenoic acid, palmitic acid, palmitoleic acid, margaric acid, heptadecenoic acid, stearic acid, oleic acid, elaidic acid, octadecenoic acid, linoleic acid, octadecadienoic acid, g-linolenic acid, linolenic acid, arachidic acid, eicosenoic acid, eicosadienoic acid, 8,11,14-eicosatrienoic acid, heneicosanoic acid, arachidonic acid, eicosatrienoic acid, eicosap- entaenoic acid, behenic acid, eruccic acid, docosa- dienoic acid (C22:2), tricosanoic acid, tetracosanoic acid, docosahexaenoic acid and tetracosenoic acid.
Chemical composition assessed by GC-MS of propolis RT Contents % TIC 52.49 Flavonoids Chrysin 5.33 53.67 Acacetin 3.02 51.66 Naringenin 2.67 55.49 Aliphatic Decanoic acid 0.28 46.93 acids Octadecanoic acid 0.39 21.00 Tetradecanoic acid 0.40 51.22 Undecanoic acid 0.79 7.18 Butanedioic acid 0.77 26.93 Aromatic Ferulic acid 0.43 24.80 acids Cinnamic acid 0.41 31.20 Palmitoleic acid 0.51 34.92 Esters 4,3 acetyloxycaffeate 0.52 36.33 Caffeic acid TMS ester 0.39 11.43 Alcohol, 1-propen-1thiol 4.51 7.18 terpene and 1-siklohekzen-1-methanol 4.64 28.93 quinonee Farnesol 20.64 14.97 Limonen dioxide 0.78 6.87 Glycerole 1.04 11.43 Others 1H-sikolpentafuran 3.17 53.43 3- hexane 1.61 56.46 Heptane 0.02 42.17 1,3 bis 5 propil benzene 0.55 RT = Retention time, minute.