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Oct-2-enal

HCID 16900
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
2363-89-5
Standard SMILES
CCCCCC=CC=O
InChIKey
LVBXEMGDVWVTGY-UHFFFAOYSA-N
Molecular formula
C8H14O
Average molar mass
126.2 g/mol
Monoisotopic mass
126.10446507

Overview

oct-2-enal has been reported in Pternistria bispina, Gossypium hirsutum, and other organisms with data available.

Names & identifiers

Preferred name
Oct-2-enal
IUPAC
oct-2-enal
English name
oct-2-enal
Molecular formula
C8H14O
Molecular weight
126.2

Names & synonyms

oct-2-enalCHEBI:61725oct-2-en-1-alRefChem:855400219-115-42-OCTENAL2363-89-5OCTENAL2-(E)-octenaloct-(e)-2-enalOct-2(E)-enalDTXSID0062349
Show more names
2-Octen-1-al
n-Oct-2-enal(Z)-2-octen-1-alTrans-2-OCTEN-L-ALEpitope ID:143639SCHEMBL310029SCHEMBL1535636AKOS025243624DB-120366

Database identifiers

CAS
2363-89-5、2548-87-0
PubChem CID
16900
DTXSID
DTXSID0062349
EC Number
219-115-4

Properties

Computed structural properties

XLogP
2.6
Topological polar surface area
17.1 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
1
Rotatable bonds
5
Heavy atoms
9
Formal charge
0
Complexity
84.6

Experimental & physicochemical properties

FragrancesFragrance Ingredient (2-Octenal) -> IFRA transparency List
Food AdditivesFLAVORING AGENT OR ADJUVANT -> FDA Substance added to food
Density0.835-0.845
Flavoring AgentsEU Flavoring substances
Solubility · 2 items

Slightly soluble in water; Soluble in most fixed oils

Soluble (in ethanol)

Boiling Point · 2 items

84.00 to 86.00 °C. @ 19.00 mm Hg

84-86 °C (19 mm Hg)

Refractive Index1.449-1.455
Physical DescriptionColourless to slightly yellow liquid; Fatty, green aroma

Physicochemical properties

Boiling point

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 16.8% (259 of 1545) of reports.

Warning

H315 (83.2%): Causes skin irritation [Warning Skin corrosion/irritation]

P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, and P362+P364 (click each P-code to see the statement)

Aggregated GHS information provided per 1545 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 3 items

Chemical: 2-Octenal

Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)

2-Octenal: Does not have an individual approval but may be used under an appropriate group standard

Other Safety InformationIMAP assessments - 2-Octenal: Environment tier I assessment

Toxicology

TreatmentKidney dialysis is usually needed to relieve the symptoms of uremic syndrome until normal kidney function can be restored.
Health EffectsChronic exposure to uremic toxins can lead to a number of conditions including renal damage, chronic kidney disease and cardiovascular disease.
Exposure RoutesEndogenous, Ingestion, Dermal (contact)
Toxicity Summary · 1 item

Uremic toxins such as 2-Octenal are actively transported into the kidneys via organic ion transporters (especially OAT3). Increased levels of uremic toxins can stimulate the production of reactive oxygen species. This seems to be mediated by the direct binding or inhibition by uremic toxins of the enzyme NADPH oxidase (especially NOX4 which is abundant in the kidneys and heart) (A7868). Reactive oxygen species can induce several different DNA methyltransferases (DNMTs) which are involved in the silencing of a protein known as KLOTHO. KLOTHO has been identified as having important roles in anti-aging, mineral metabolism, and vitamin D metabolism. A number of studies have indicated that KLOTHO mRNA and protein levels are reduced during acute or chronic kidney diseases in response to high local levels of reactive oxygen species (A7869).

Chemistry & industry

Pharmacology

Metabolism/MetabolitesUremic toxins tend to accumulate in the blood either through dietary excess or through poor filtration by the kidneys. Most uremic toxins are metabolic waste products and are normally excreted in the urine or feces.
Cellular LocationsMembrane

Uses & manufacturing

UsesNaturally produced by the body (endogenous).
Use Classification · 3 items

Fragrance Ingredients

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

Flavoring Agents -> JECFA Flavorings Index

General Manufacturing Information2-Octenal: ACTIVE
Applications · 3 items

Description2-Octenal has a peculiar green-leafy odor which is less fatty than octanal with an orange, honey-like, cognac-like aroma. 2-Octenal may be prepared by prolonged heating of a solution of heptanal and formaldehyde in the presence of dimethylamino hydrochloride; by boiling 4,5-diketo-3-pentyltetrahydrofuran under a nitrogen blanket.

OccurrenceReported found in potato chips, orange juice, cranberry, strawberry, asparagus, cabbage, peas, tomato, wheat and crisp bread, Russian cheeses, caviar, butter, yogurt, fish, beef and lamb fat, cured pork, roasted filberts and peanuts, peanut butter, soybean, mushroom, walnut, rice, corn tortillas, malt and sweet grass oil.

UsesGB 2760-1996 specifies oct-2-enal as a permitted edible flavoring. It is mainly used to formulate flavorings such as chicken and cucumber.

Preparation methods

Related reactions

2 records
New reaction record
HRID 442410 reaction equation
HRID 442410As productuspto-grants-1977_08
HRID 1358540 reaction equation
HRID 1358540As reactantuspto-grants-2003_07

Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
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190 ℃ · 190℃
Density
0.832 · 0.832
FEMA
3215 · 3215 | 2-OCTENAL
FLAVIS Number
5.06 · 05.060 | Oct-2-enal
Flash point
68 ℃ · 68℃
Odor
1 % · at 1.00 % in propylene glycol. fatty green herbal
Odor Type
fatty
JECFA Number
1363 · 1363
Henry's Law Constant
7.1 · 7.1×10-2 mol/(m3Pa) at 25℃, Keshavarz et al. (2022)
Cosmetics Ingredients Functions
PERFUMING
LogP
2.64 · 2.64
Substances Added to Food (formerly EAFUS)
2 · 2-OCTENAL
EPA Substance Registry System
2 · 2-Octenal (2363-89-5)
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
319 · H319-H315
Precautionary statements
264 · P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
TSCA
TSCA listed
Signs and Symptoms · 1 item

As a uremic toxin, this compound can cause uremic syndrome. Uremic syndrome may affect any part of the body and can cause nausea, vomiting, loss of appetite, and weight loss. It can also cause changes in mental status, such as confusion, reduced awareness, agitation, psychosis, seizures, and coma. Abnormal bleeding, such as bleeding spontaneously or profusely from a very minor injury can also occur. Heart problems, such as an irregular heartbeat, inflammation in the sac that surrounds the heart (pericarditis), and increased pressure on the heart can be seen in patients with uremic syndrome. Shortness of breath from fluid buildup in the space between the lungs and the chest wall (pleural effusion) can also be present.

Carcinogen ClassificationNo indication of carcinogenicity to humans (not listed by IARC).

Safety data

tsca
TSCA listed
Signal word
Warning
Symbol(GHS)
GHS07
Hazard statements
H319-H315
Precautionary statements
P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362

PreparationBy prolonged heating of a solution of heptanal and formaldehyde in the presence of dimethylamino hydrochloride; by boiling 4,5-diketo-3-penthyltetrahdyrofuran under a nitrogen blanket.

Upstream & downstream products

Upstream raw materials

2-Heptanone

Additional notes

DefinitionChEBI: An enal consisting of oct-2-ene having an oxo group at the 1-position.