イソバレルアルデヒド

外観

無色～わずかにうすい黄色, 澄明の液体

溶解性

水に微溶, エタノール, エーテルに混和。水に微溶。エタノール、エーテルに可溶。エタノール及びエーテルに極めて溶けやすく、水にわずかに溶ける。

用途

合成着香料、香料

用途

風味料、香料、医薬など

化学的特性

Isovaleraldehyde is a colorless, low-solubility liquid with a pungent odor similar to that of apples.

天然物の起源

Reported found in over 180 natural sources including apple, banana, berries, grapes, peach, papaya, peach, kohlrabi, carrot, celery, leek, peas, potato, bell pepper, tomato, ginger, peppermint and spearmint oil, other Mentha oils, vinegar, breads, many cheeses, butter, milk, egg, fatty and lean fish, meats, hop oil, beer, cognac, sherry, rum, grape wines, cocoa, coffee, tea, filberts, peanuts, pecans, peanut butter, barley, oats, soybean, honey, avocado, mace, plum, beans, mushrooms, starfruit, mango, beetroot, cardamom, coriander seed, rice, lovage leaf, pumpkin, buckwheat, laurel, malt, clary sage, wort, elderberry, clam, scallops, crab, crayfish, okra, sapodilla, truffles, kiwifruit and other sources.

使用

Isovaleraldehyde is manufactured by oxidizing isoamyl alcohol with sodium perchromate and sulfuric acid. Isovaleraldehyde is present in essential oils of orange, peppermint, lemon, and other plants and fruits. Its main uses are as an artificial flavor additive and in perfumes.

製造方法

By oxidation of isoamyl alcohol.

定義

ChEBI: 3-methylbutanal is a methylbutanal that is butanal substituted by a methyl group at position 3. It occurs as a volatile constituent in olives. It has a role as a flavouring agent, a plant metabolite, a volatile oil component and a Saccharomyces cerevisiae metabolite.

一般的な説明

Colorless liquid with a weak suffocating odor. Floats on water. Produces an irritating vapor. It is a metabolite found in or produced by Saccharomyces cerevisiae.

空気と水の反応

Highly flammable.

反応プロフィール

Isovaleraldehyde 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.

健康ハザード

Inhalation causes chest discomfort, nausea, vomiting, and headache. Contact of liquid with eyes or skin causes irritation. Ingestion causes irritation of mouth and stomach.