ChemicalBook >> CAS DataBase List >>Hexanal


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2022-08-15 17:41:38

Hexanal Properties

Melting point -56 °C
Boiling point 130-131 °C(lit.)
Density 0.816 g/mL at 20 °C
vapor density >1 (vs air)
vapor pressure 10 mm Hg ( 20 °C)
refractive index n20/D 1.4035(lit.)
Flash point 90 °F
storage temp. 2-8°C
solubility 6g/l
form Liquid
color Clear colorless to slightly yellow
Odor Pungent.
PH 4-5 (4.8g/l, H2O, 20℃)
Odor Threshold 0.00028ppm
Water Solubility 4.8 g/L (20 ºC)
Sensitive Air Sensitive
JECFA Number 92
Merck 14,1760
BRN 506198
Stability Stable. Flammable. Incompatible with oxidizing agents, strong bases, strong reducing agents.
CAS DataBase Reference 66-25-1(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) HEXANAL
EWG's Food Scores 1
NIST Chemistry Reference Hexanal(66-25-1)
EPA Substance Registry System Hexaldehyde (66-25-1)


Risk and Safety Statements

Signal word  Warning
Hazard statements  H226-H315-H319
Precautionary statements  P210-P233-P240-P241-P303+P361+P353-P305+P351+P338
Hazard Codes  Xi
Risk Statements  10-36-36/37/38
Safety Statements  37/39-26-16-9
RIDADR  UN 1207 3/PG 3
WGK Germany  1
RTECS  MN7175000
Autoignition Temperature 220 °C
Hazard Note  Irritant
HS Code  2912 19 00
HazardClass  3
PackingGroup  III
Toxicity LD50 orally in rats: 4.89 g/kg (Smyth)
NFPA 704
2 1

Hexanal price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich W255726 Hexanal natural, ≥95%, FG 66-25-1 25g $116 2022-05-15 Buy
Sigma-Aldrich W255726 Hexanal natural, ≥95%, FG 66-25-1 100g $204 2022-05-15 Buy
Sigma-Aldrich W255726 Hexanal natural, ≥95%, FG 66-25-1 1kg $1390 2022-05-15 Buy
Sigma-Aldrich W255718 Hexanal ≥97%, FCC, FG 66-25-1 1kg $121 2022-05-15 Buy
Sigma-Aldrich W255718 Hexanal ≥97%, FCC, FG 66-25-1 4kg $363 2022-05-15 Buy
Product number Packaging Price Buy
W255726 25g $116 Buy
W255726 100g $204 Buy
W255726 1kg $1390 Buy
W255718 1kg $121 Buy
W255718 4kg $363 Buy

Hexanal Chemical Properties,Uses,Production


Hexanal has a characteristic fruity odor and taste (on dilution). May be prepared from the calcium salt of caproic acid and formic acid.

Chemical Properties

Hexanal occurs, for example, in apple and strawberry aromas as well as in orange and lemon oil. It is a colorless liquid with a fatty, green odor and, in low concentration, is reminiscent of unripe fruit.
Hexanal is used in fruit flavors and, when highly diluted, in perfumery for obtaining fruity notes.

Chemical Properties

Colorless liquid; sharp aldehyde odor.Immiscible with water.

Chemical Properties

Hexanal has a fatty, green, grassy, powerful, penetrating characteristic fruity odor and taste (on dilution).


Reported found in some natural aromas of apple, strawberry, camphor oil, tea extracts, tobacco leaves, Eucalyptus globulus, dwarf pine, bitter orange and coffee. Also reported found in nearly 300 natural sources including apple, apricot, banana, sweet and sour cherry, citrus peel oils and juices, berries, guava, melon, raisins, peach, pear, papaya, pineapple, asparagus, cabbage, celery, carrot, lettuce, shallots, onion, leek, ginger, parsley, bread, cheeses, butter, milk, fish, meats, cocoa, coffee, tea, nuts, popcorn, potato chips, oat products, honey, soybean, plum, cauliflower, beetroot, celery root, figs, cardamom, coriander seed and leaf, brussel sprouts, rice, quince, radish, lovage, corn oil, laurel and malt


Analgesic; antidepressant.


Hexanal occurs naturally inmany foods, such as in ripening fruits, or because of addition as a flavorant; it has an apple taste. It can also be produced in foods because of lipid peroxidation during cooking. It is mainly used as a food flavorant, in fragrances, and in the manufacture of dyes, plasticizers, synthetic resins, and pesticides. It is released to air and water during production or use for the manufacture of other products or during the use of these products themselves. It undergoes oxidation and polymerization readily.
Feron et al. identified hexanal in about 80 different types of food.


Hexanal is used in the flavor industry to prepare fruity flavors. It is utilized as a flavoring agent in the food industry. It is also used in Witting and aldol reactions.


Prepared from the calcium salt of caproic acid and formic acid


ChEBI: A fatty aldehyde that is hexane in which one of the terminal methyl group has been mono-oxygenated to form the corresponding aldehyde.

Aroma threshold values

Detection: 4.1 to 22.8 ppb; recognition: 400 ppb; aroma characteristics at 2.0%: green, fatty, leafy, vegetative, fruity and clean with a woody nuance

Taste threshold values

Taste characteristics at 2.5 ppm: green, woody, vegetative, apple, grassy, citrus and orange with a fresh, lingering aftertaste

Synthesis Reference(s)

Journal of the American Chemical Society, 93, p. 1693, 1971 DOI: 10.1021/ja00736a021

General Description

A clear colorless liquid with a pungent odor. Flash point 90°F. Less dense than water and insoluble in water. Vapors heavier than air.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

Caproaldehyde is an aldehyde. Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation. May attack some forms of plastics [USCG, 1999].


Flammable, moderate fire risk.

Health Hazard

Ingestion causes irritation of mouth and stomach. Contact with vapor or liquid irritates eyes. Liquid irritates skin.

Fire Hazard

Behavior in Fire: Vapor is heavier than air and may travel to a source of ignition and flash back.

Chemical Reactivity

Reactivity with Water No reaction; Reactivity with Common Materials: May attack some plastics; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

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View Lastest Price from Hexanal manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2022-05-23 Hexanal
US $790.00 / kg 1kg ≥99% 20 tons GLR Innovations
2022-05-06 Hexanal
US $10.00 / KG 1KG 99% 50MT Hebei baicao biology science and technology co., ltd
2022-02-25 N-Hexanal
US $0.00 / Kg/Drum 1KG 99% 200mt Jinan Finer Chemical Co., Ltd
  • Hexanal
  • US $790.00 / kg
  • ≥99%
  • GLR Innovations
  • Hexanal
  • US $10.00 / KG
  • 99%
  • Hebei baicao biology science and technology co., ltd
  • N-Hexanal
  • US $0.00 / Kg/Drum
  • 99%
  • Jinan Finer Chemical Co., Ltd
Capronaldehyde Hexaldehyde Hexyl Aldehyde HEXANAL FOR SYNTHESIS 250 ML Hexanal (Capro n-Hexylaldehyde 〔n-Capronaldehyde〕 Hexanal (stabilised) for synthesis Capronaldehyd femanumber2557 hexan-1-al hexoicaldehyde Kapronaldehyd n-C5H11CHO n-Caproaldehyde n-caproicaldehyde n-Caproylaldehyde n-hexaldehyde(hexanal) CAPROIC ALDEHYDE Hexanal, 96% 500ML HEXANAL 95+% NATURAL HEXANAL 97+% FCC 1-HEXYLALDEHYDE N-C6 ALDEHYDE N-CAPRONALDEHYDE N-HEXYLALDEHYDE ALDEHYD C 6 (HEXANAL) HEXANAL (NATURAL) CAPROIC ALDEHYDE WITH GC Aldehyde C6, Caproaldehyde, Hexyl aldehyde n-Hexylic aldehyde Hexanal,96% CAPROIC ALDEHYDE(SG) Hexanal,Aldehyde C6, Caproaldehyde, Hexyl aldehyde Hexaldehyde 5g [66-25-1] Hexaldehyde 1g [66-25-1] Natural Hexaldethde 1-pentanecarbaldehyde HEXANAL HEXYL ALDEHYDE FEMA 2557 Hexanal,98% Caproaldehyde, Hexaldehyde n-Hexoic aldehyde Natural Hexylaldehyde Natural Hexaldehyde Hexanal (stabilised) Hexanal> 1-Pentanecarbaldehyde,98% Hexanal USP/EP/BP hexanal (aldehyde C-6) HEXANAL FOR SYNTHESIS 5 ML butacetin hexanaldehyde CAPRONALDEHYDE CAPROALDEHYDE ALDEHYDE C-6 1-HEXANAL N-HEXALDEHYDE N-HEXANAL HEXALDEHYDE