EU/US Properties Organoleptics Cosmetics Suppliers Safety Safety in use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes

ethylidene acetone

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CAS Number: 625-33-2Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:210-888-3
Beilstein Number:1633505
CoE Number:666
XlogP3:0.50 (est)
Molecular Weight:84.11796000
Formula:C5 H8 O
NMR Predictor:Predict (works with chrome or firefox)
Category:flavoring agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist:Search
Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
JECFA Food Flavoring:1124 3-penten-2-one
FLAVIS Number:07.044 (Old)
DG SANTE Food Flavourings:07.044 pent-3-en-2-one
FEMA Number:3417 3-penten-2-one
FDA:No longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm (SATF):625-33-2 ; 3-PENTEN-2-ONE
Physical Properties:
Appearance:colorless to yellow clear liquid (est)
Assay: 98.00 to 100.00 sum of isomers
Food Chemicals Codex Listed: No
Specific Gravity:0.86200 @ 25.00 °C.
Refractive Index:1.43700 @ 20.00 °C.
Boiling Point: 122.00 °C. @ 760.00 mm Hg
Vapor Pressure:14.217000 mmHg @ 25.00 °C. (est)
Flash Point: 70.00 °F. TCC ( 21.11 °C. )
logP (o/w): 0.520
Soluble in:
 water, 4.618e+004 mg/L @ 25 °C (est)
Insoluble in:
Organoleptic Properties:
Odor Type: fruity
Odor Strength:high ,
recommend smelling in a 0.10 % solution or less
fruity acetone phenolic fishy
Odor Description:at 0.10 % in dipropylene glycol. fruity acetone phenolic fishy
acetone fruity phenolic fishy chemical
Odor Description:Sharp and acetone-like and fruity, phenolic and fishy with a chemical glue nuance
Mosciano, Gerard P&F 21, No. 5, 49, (1996)
Flavor Type: fishy
musty phenolic fishy seafood
Taste Description: at 10.00 ppm. Musty, stale water and phenolic with a fishy and shell fish nuance
Mosciano, Gerard P&F 21, No. 5, 49, (1996)
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
None found
Beijing Lys Chemicals
BOC Sciences
For experimental / research use only.
(3E)-3-penten-2-one 95%
DeLong Chemicals America
M&U International
3-PENTEN-2-ONE, Kosher
Penta International
Santa Cruz Biotechnology
For experimental / research use only.
3-Penten-2-one, ≥70%
Certified Food Grade Products
Safety Information:
Preferred SDS: View
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
oral-rat LD50 3200 mg/kg
Journal of Industrial Hygiene and Toxicology. Vol. 30, Pg. 63, 1948.

Dermal Toxicity:
skin-rabbit LD50 500 ul/kg
Journal of Industrial Hygiene and Toxicology. Vol. 30, Pg. 63, 1948.

Inhalation Toxicity:
inhalation-rat TCLo 250 ppm/4H
Journal of Industrial Hygiene and Toxicology. Vol. 31, Pg. 343, 1949.

Safety in Use Information:
Category: flavoring agents
Recommendation for 3-penten-2-one usage levels up to:
 not for fragrance use.
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.26 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA): ND (μg/capita/day)
Structure Class: I
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 7
 average usual ppmaverage maximum ppm
baked goods: -4.00000
beverages(nonalcoholic): -2.00000
beverages(alcoholic): --
breakfast cereal: -2.00000
cheese: --
chewing gum: --
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: -2.00000
fruit ices: -2.00000
gelatins / puddings: -4.00000
granulated sugar: --
gravies: --
hard candy: -4.00000
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: --
milk products: -1.00000
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: --
soups: --
sugar substitutes: --
sweet sauces: --
Safety References:
European Food Safety Athority(efsa):Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...

European Food Safety Authority (EFSA) reference(s):

Scientific Opinion on Flavouring Group Evaluation 204 (FGE.204): Consideration of genotoxicity data on representatives for 18 mono-unsaturated, aliphatic, a,-unsaturated ketones and precursors from chemical subgroup 1.2.1 of FGE.19 by EFSA
View page or View pdf

EPI System: View
Env. Mutagen Info. Center:Search
EPA Substance Registry Services (TSCA):625-33-2
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :12248
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
RTECS:SB3850000 for cas# 625-33-2
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:625-33-2
Pubchem (cid):12248
Pubchem (sid):134977882
Other Information:
(IUPAC):Atomic Weights of the Elements 2009
(IUPAC):Atomic Weights of the Elements 2009 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
FDA Substances Added to Food (formerly EAFUS):View
HMDB (The Human Metabolome Database):HMDB01184
Export Tariff Code:2914.10
Typical G.C.
VCF-Online:VCF Volatile Compounds in Food
Potential Blenders and core components note
For Odor
For Flavor
No flavor group found for these
hexyl amine
methyl butyl amine
pentylidene isopentyl amine
phenethyl amine
tripropyl amine
Potential Uses:
FLchocolate cocoa
Occurrence (nature, food, other):note
 beef cooked beef
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 bilberry fruit
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 cranberry fruit
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 filbert roasted filbert
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 lavender oil spike spain @ 0.012%
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 mango fruit
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 peanut roasted peanut
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 pork liver
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 potato chip
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 safflower bud
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 shrimp cooked shrimp
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 strawberry wild strawberry fruit
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 tamarind fruit oil
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 tea green tea
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 tea rooibos tea
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 ethylidene acetone
 ketone, methyl propenyl
 ketone, methyl trans-1-propenyl
 methyl 1-propenyl ketone
 methyl propenyl ketone
Flavouring ingredient. Found in roasted peanuts, roasted filbert, cranberry, bilberry, coca, tea and other foods Methyl propenyl ketone is a volatile organic compound. Methyl propenyl ketone is occasionally found as a volatile component of normal human biofluids. It is found as a volatile in the hawthorn fruit upon ripening, and also is part of the scent components of the urine of some animals. (PMID: 5556886, 16770722, 15739361, 914932)
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