WordNet
- street name for lysergic acid diethylamide (同)back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen
- any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
- having the characteristics of an acid; "an acid reaction"
PrepTutorEJDIC
- 酸性の / 酸味のある,すっぱい(sour) / (言葉・態度などが)厳しい,しんらつな / 酸 / すっぱいもの / 《俗》=LSD
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2017/05/26 03:44:42」(JST)
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Hexanoic acid
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Names |
IUPAC name
Hexanoic acid
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Other names
Caproic acid; n-Caproic acid; C6:0 (Lipid numbers)
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Identifiers |
CAS Number
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3D model (Jmol)
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ChEBI |
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ChemSpider |
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ECHA InfoCard |
100.005.046 |
KEGG |
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UNII |
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InChI
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InChI=1S/C6H12O2/c1-2-3-4-5-6(7)8/h2-5H2,1H3,(H,7,8) Y
Key: FUZZWVXGSFPDMH-UHFFFAOYSA-N Y
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InChI=1/C6H12O2/c1-2-3-4-5-6(7)8/h2-5H2,1H3,(H,7,8)
Key: FUZZWVXGSFPDMH-UHFFFAOYAY
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Properties |
Chemical formula
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C6H12O2 |
Molar mass |
116.16 g·mol−1 |
Appearance |
Oily liquid[1] |
Odor |
goat-like |
Density |
0.929 g/cm3[2] |
Melting point |
−3.4 °C (25.9 °F; 269.8 K)[1] |
Boiling point |
205.8 °C (402.4 °F; 478.9 K)[1] |
Solubility in water
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1.082 g/100 mL[1] |
Solubility |
soluble in ethanol, ether |
Acidity (pKa) |
4.88 |
Magnetic susceptibility (χ)
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-78.55·10−6 cm3/mol |
Refractive index (nD)
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1.4170 |
Viscosity |
3.1 mP |
Hazards |
NFPA 704 |
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Flash point |
103 °C (217 °F; 376 K)[2] |
Autoignition
temperature
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380 °C (716 °F; 653 K) |
Explosive limits |
1.3-9.3% |
Lethal dose or concentration (LD, LC): |
LD50 (median dose)
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3000 mg/kg (rat, oral) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Y verify (what is YN ?) |
Infobox references |
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Hexanoic acid (caproic acid) is the carboxylic acid derived from hexane with the general formula C5H11COOH. It is a colorless oily liquid with an odor that is fatty, cheesy, waxy, and like that of goats[1] or other barnyard animals. It is a fatty acid found naturally in various animal fats and oils, and is one of the chemicals that give the decomposing fleshy seed coat of the ginkgo its characteristic unpleasant odor.[3] It is also one of the components of vanilla. The primary use of hexanoic acid is in the manufacture of its esters for artificial flavors, and in the manufacture of hexyl derivatives, such as hexylphenols.[1]
The salts and esters of this acid are known as hexanoates or caproates.
Two other acids are named after goats: caprylic (C8) and capric (C10). Along with hexanoic acid, these total 15% in goat milk fat.
Caproic, caprylic, and capric acids (capric is a crystal- or wax-like substance, whereas the other two are mobile liquids) are not only used for the formation of esters, but also commonly used "neat" in: butter, milk, cream, strawberry, bread, beer, nut, and other flavors.
References
- ^ a b c d e f The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals (11th ed.), Merck, 1989, ISBN 091191028X
- ^ a b Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health
- ^ Ginkgo.html
Lipids: fatty acids
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Saturated |
- Butyric (C4)
- Valeric (C5)
- Caproic (C6)
- Enanthic (C7)
- Caprylic (C8)
- Pelargonic (C9)
- Capric (C10)
- Undecylic (C11)
- Lauric (C12)
- Tridecylic (C13)
- Myristic (C14)
- Pentadecanoic (C15)
- Palmitic (C16)
- Margaric (C17)
- Stearic (C18)
- Nonadecylic (C19)
- Arachidic (C20)
- Heneicosylic (C21)
- Behenic (C22)
- Tricosylic (C23)
- Lignoceric (C24)
- Pentacosylic (C25)
- Cerotic (C26)
- Heptacosylic (C27)
- Montanic (C28)
- Nonacosylic (C29)
- Melissic (C30)
- Hentriacontylic (C31)
- Lacceroic (C32)
- Psyllic (C33)
- Geddic (C34)
- Ceroplastic (C35)
- Hexatriacontylic (C36)
- Heptatriacontanoic (C37)
- Octatriacontanoic (C38)
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ω−3 Unsaturated |
- α-Linolenic (18:3)
- Stearidonic (18:4)
- Eicosapentaenoic (20:5)
- Docosahexaenoic (22:6)
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ω−6 Unsaturated |
- Linoleic (18:2)
- γ-Linolenic (18:3)
- Dihomo-γ-linolenic (20:3)
- Arachidonic (20:4)
- Adrenic (22:4)
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ω−7 Unsaturated |
- Palmitoleic (16:1)
- Vaccenic (18:1)
- Paullinic (20:1)
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ω−9 Unsaturated |
- Oleic (18:1)
- Elaidic (trans-18:1)
- Gondoic (20:1)
- Erucic (22:1)
- Nervonic (24:1)
- Mead (20:3)
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UpToDate Contents
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English Journal
- Free fatty acids and their esters modulate isothermal crystallization of anhydrous milk fat.
- Bayard M1, Leal-Calderon F1, Cansell M2.
- Food chemistry.Food Chem.2017 Mar 1;218:22-29. doi: 10.1016/j.foodchem.2016.09.042. Epub 2016 Sep 8.
- The effect of free fatty acids with different chain lengths or unsaturation degree on anhydrous milk fat (AMF) crystallization was evaluated. The impact of esterification was also studied using three triglycerides. Melted blends containing the additives at concentrations lower than 12wt.% were quenc
- PMID 27719901
- Quantification of real thermal, catalytic, and hydrodeoxygenated bio-oils via comprehensive two-dimensional gas chromatography with mass spectrometry.
- Silva RV1, Tessarolo NS2, Pereira VB2, Ximenes VL3, Mendes FL3, de Almeida MB3, Azevedo DA4.
- Talanta.Talanta.2017 Mar 1;164:626-635. doi: 10.1016/j.talanta.2016.11.005. Epub 2016 Nov 5.
- The elucidation of bio-oil composition is important to evaluate the processes of biomass conversion and its upgrading, and to suggest the proper use for each sample. Comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC×GC-TOFMS) is a widely applied analytical a
- PMID 28107982
Japanese Journal
- Analysis of Free Fatty Acids in Sake by an Enzymatic Method and Its Application for Estimating Ethyl Caproate and Selecting Yeast with High Productivity of the Ester
- KURIBAYASHI Takashi,KANEOKE Mitsuoki,HIRATA Dai,WATANABE Ken-ichi
- Bioscience, biotechnology, and biochemistry 76(2), 391-394, 2012-02-23
- NAID 10030400301
Related Links
- CAPROIC ACID PRODUCT IDENTIFICATION CAS NO. 142-62-1 EINECS NO. 205-550-7 FORMULA CH 3 (CH 2) 4 COOH MOL WT. 116.16 H ...
- [Hexanoic Acid] [142-62-1] | 価格や在庫、物性値などの詳細情報ページです。 ... ・川口の在庫は即日,つくばの在庫は2〜3日以内の出荷となります。・詳細につきましては,お手数ですが営業部までお問い合わせください。
★リンクテーブル★
[★]
カプロン酸、(化合物)カプロン酸エステル、カプロン酸塩
- 関
- caproic acid、hexanoate
[★]
- 英
- caproic acid、caproate
- 関
- ヘキサン酸、カプロン酸エステル、カプロン酸塩
[★]
イプシロンアミノカプロン酸、ε-アミノカプロン酸
- 関
- 6-aminocaproic acid、6-aminohexanoic acid
[★]
- 関
- アミノカプロン酸
- 同
- Amicar