1-Octen-3-one

CAS NO.：4312-99-6
Empirical Formula: C8H14O
Molecular Weight: 126.2
MDL number: MFCD00036558
EINECS: 224-327-5
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 04:45:45

What is 1-Octen-3-one?

Chemical properties

1-Octen-3-one has a mushroom odor.

Occurrence

Reported found in cooked artichoke, cider, fish, matsutake, milk, peas, soya bean, mushrooms, potatoes, orange juice, tomato and passion fruit.

The Uses of 1-Octen-3-one

1-Octen-3-one is a volatile unsaturated ketone that has a strong mushroom-like odour. 1-Octen-3-one is also a flavour component of the Agaricus bisporus mushroom and is used in a variety of food products.

Definition

ChEBI: 1-Octen-3-one is an olefinic compound. It is functionally related to an acrylic acid.

Aroma threshold values

Detection: 0.05 to 4 ppb

Synthesis Reference(s)

The Journal of Organic Chemistry, 56, p. 5924, 1991 DOI: 10.1021/jo00020a040

General Description

1-Octen-3-one is also known as "mushroom alcohol". It is a C8 aliphatic volatile compound, a component of essential oils of various plants including Origanum vulgare, L. lopez-palacii, Phyllanthus emblica and Scutellaria barbata. 1-Octen-3-one is a vital food additive with a characteristic mushroom odor. Various studies also demonstrate the antimicrobial activity of this natural product.

Properties of 1-Octen-3-one

Boiling point:	174-182 °C
Density	0.833 g/mL at 25 °C
refractive index	n20/D 1.4359
FEMA	3515 \| 1-OCTEN-3-ONE
Flash point:	145 °F
storage temp.	2-8°C
solubility	Chloroform (Sparingly), Ethyl Acetate (Slightly), Methanol (Slightly)
form	Oil
color	Colourless
Odor	at 1.00 % in dipropylene glycol. herbal mushroom earthy musty dirty
JECFA Number	1148
BRN	1700905
Stability:	Light Sensitive
CAS DataBase Reference	4312-99-6(CAS DataBase Reference)
NIST Chemistry Reference	1-Octen-3-one(4312-99-6)
EPA Substance Registry System	1-Octen-3-one (4312-99-6)

Safety information for 1-Octen-3-one

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H317:Sensitisation, Skin
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water.