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Hexanoic acid

Description References
Hexanoic acid
Hexanoic acid structure
Chemical Name:
Hexanoic acid
C6;NA-1706;acid c-6;FEMA 2559;N-CAPROATE;hexacid698;Hexansαure;HEXOIC ACID;Capronsαure;Hexacid 698
Molecular Formula:
Formula Weight:
MOL File:

Hexanoic acid Properties

Melting point:
−4 °C(lit.)
Boiling point:
202-203 °C(lit.)
0.927 g/mL at 25 °C(lit.)
vapor density 
4 (vs air)
vapor pressure 
0.18 mm Hg ( 20 °C)
refractive index 
n20/D 1.4161(lit.)
Flash point:
220 °F
storage temp. 
Store below +30°C.
water: slightly soluble1.082g/100g(lit.)
4.85(at 25℃)
Clear colorless to light yellow
Specific Gravity
0.929 (20/4℃)
4 (1g/l, H2O, 20℃)
Odor Threshold
Water Solubility 
1.1 g/100 mL (20 ºC)
JECFA Number
Stable. Incompatible with bases, reducing agents and oxidizing agents. Flammable.
CAS DataBase Reference
142-62-1(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)
EWG's Food Scores
NIST Chemistry Reference
Hexanoic acid(142-62-1)
EPA Substance Registry System
Hexanoic acid (142-62-1)
  • Risk and Safety Statements
Signal word  Danger
Hazard statements  H302-H311-H318-H331-H290-H314
Precautionary statements  P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P260h-P301+P330+P331-P405-P501a
Hazard Codes  C,Xi
Risk Statements  34-21-20/21/22
Safety Statements  26-36/37/39-45-25
RIDADR  UN 2829 8/PG 3
WGK Germany  1
RTECS  MO5250000
Autoignition Temperature 380 °C
Hazard Note  Irritant
HazardClass  8
PackingGroup  III
HS Code  29159000
Toxicity LD50 orally in rats: 3.0 g/kg (Smyth, Carpenter)
NFPA 704
3 0

Hexanoic acid price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 153745 Hexanoic acid ≥99% 142-62-1 2.5g $13.8 2021-03-22 Buy
Sigma-Aldrich 8.00198 Hexanoic acid for synthesis 5 mL $23.12 2021-03-22 Buy
Sigma-Aldrich 8.00198 Hexanoic acid for synthesis 250 mL $26.27 2021-03-22 Buy
Sigma-Aldrich 153745 Hexanoic acid ≥99% 142-62-1 100g $32.6 2021-03-22 Buy
Sigma-Aldrich W255900 Hexanoic acid natural, ≥98%, FCC, FG 1 kg $66 2021-03-22 Buy

Hexanoic acid Chemical Properties,Uses,Production


Hexanoic acid (also known as Caproci acid, general formula: C5H11COOH) belongs to a kind of saturated medium-chain fatty acid derived from hexane with an unpleasant odor. It is a colorless oily liquid naturally existing in various plant and animal fats and oils. One of its major applications is for the manufacturing of its esters for being artificial flavors. It is also important for the manufacturing of hexyl derivatives such as hexylphenols. Hexanoic acid belongs to medium chain triglycerides (MCT) that are widely used as a nutrition supplement that added to foods, drugs and cosmetics.



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 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. 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.
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 waxlike 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.

Chemical Properties

Hexanoic acid has an unpleasant odor reminiscent of copra oil and it exhibits an acrid taste. Hexanoic acid may be prepared by fractionation of the volatile fatty acids of coconut oil.

Chemical Properties

Hexanoic acid has a sickening, sweaty, rancid, sour, sharp, pungent, cheesy, fatty, unpleasant odor reminiscent of copra oil. It exhibits an acrid taste

Chemical Properties

colourless liquid


A secondary product of butyric fermentation; reported found in the essential oils of lavender, camphor, palmarosa, lemongrass and Juniperus phoenicea; in a few fruital aromas: apple, currant and strawberry; also identified among the constituents of petitgrain lime oil. Also reported found in apple, lemon and orange juice, berries, guava, raisin, papaya, peach, pineapple, cooked potato, pepper, breads, cheeses, butter, milk, fish, meats, hop oil, beer, whiskies, rum, brandy, grape wines, coffee, cocoa, tea, filberts, pecans, peanut oil, coconut meat and oil, soybeans, passion fruit, beans, mushrooms, rice, licorice, corn oil, malt, loquat, sherry, clams, mussels, scallops and other sources


CAPROIC ACID is oily, colorless or slightly yellow, and liquid at room temperature. Odor is that of Limburger cheese. Soluble in alcohol and ether; slightly soluble in water. Caproic acid is derived from the crude fermentation of butyric acid; or by fractional distillation of natural fatty acids. Used in various flavorings; manufacture of rubber chemicals; varnish dryers; resins; pharmaceuticals.


Intermediates of Liquid Crystals


manufacture of esters for artificial flavors, and of hexyl derivatives, especially hexylphenols, hexylresorcinol, etc.


ChEBI: A C6, straight-chain saturated fatty acid.


An oily carboxylic acid found (as glycerides) in cow’s milk and some vegetable oils.


By fractionation of the volatile fatty acids of coconut oil

Aroma threshold values

Detection: 93 ppb to 10 ppm

Synthesis Reference(s)

Journal of the American Chemical Society, 99, p. 3184, 1977 DOI: 10.1021/ja00451a064
The Journal of Organic Chemistry, 57, p. 6173, 1992 DOI: 10.1021/jo00049a024
Tetrahedron Letters, 11, p. 2679, 1970

General Description

A white crystalline solid or colorless to light yellow solution with an unpleasant odor. Insoluble to slightly soluble in water and less dense than water. Contact may severely irritate skin, eyes and mucous membranes. May be toxic by ingestion, inhalation and skin absorption. Used to make perfumes.

Air & Water Reactions

Slightly water soluble.

Reactivity Profile

Hexanoic acid is a carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in Hexanoic acid to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions. Hexanoic acid reacts with bases, oxidizing agents and reducing agents.


Strong irritant to tissue.

Health Hazard

Harmful if swallowed, inhaled, or absorbed through skin. Material is extremely destructive to tissue of mucous membranes and upper respiratory tract, eyes and skin. Inhalation may be fatal as a result of spasm, inflammation and edema of the larynx and bronchia, chemical pneumonitis and pulmonary edema. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting.

Fire Hazard

Special Hazards of Combustion Products: Irritating vapor may be generated.

Purification Methods

Dry the acid with MgSO4 and fractionally distil it from CaSO4. [Beilstein 2 IV 917.]

Hexanoic acid Preparation Products And Raw materials

Raw materials

Preparation Products

Hexanoic acid Suppliers

Global( 306)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 22609 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 2813 55
career henan chemical co
+86-371-86658258 CHINA 29992 58
Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28229 58
(323) 306-3136
(626) 453-0409 United States 8406 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114 CHINA 6369 58
Hubei xin bonus chemical co. LTD
027-59338440 CHINA 23036 58
Shochem(Shanghai) Co.,Ltd
86-21-50800795 CHINA 289 58
Chongqing Chemdad Co., Ltd
+86-13650506873 CHINA 37042 58
Hebei shuoxi biotechnology co. LTD
whatsapp:+8613081092107 CHINA 973 58

View Lastest Price from Hexanoic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-04-21 Hexanoic Acid
US $69.00 / KG 1KG 99% 9000kg/per week Hebei Lingding Biological Technology Co., Ltd
2021-04-01 Hexanoic acid
US $10.00 / PCS 1KG 99% 100 mt Hebei Guanlang Biotechnology Co., Ltd.
2019-10-21 hexanoic acid
US $60.00 / KG 1g 99.8% 10tons Hebei shuoxi biotechnology co. LTD

Hexanoic acid Spectrum

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