2(5H)-furanone
4-hydroxy-2-butenoic acid gamma-lactone
Identification
| Name | 2(5H)-furanone |
| IUPAC | 5H-furan-2-one |
| CAS Number | 497-23-4 |
| EINECS | 207-839-3 |
| FDA UNII | 8KXK25H388 |
| Molecular Formula | C4 H4 O2 |
| Molecular Weight | 84.07428000 |
| MDL Number | MFCD00005376 |
| Nikkaji Number | J82.323F |
| Beilstein | 0383585 |
| XlogP3 | -0.60 (est) |
Regulatory
| JECFA Food Flavoring | 2000 4-hydroxy-2-butenoic acid gamma-lactone |
| DG SANTE Food Flavourings | 10.066 furan-2(5H)-one |
| FEMA Number | 4138 |
| FDA | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm (SATF) | 497-23-4 ; 4-HYDROXY-2-BUTENOIC ACID GAMMA-LACTONE |
Physical Properties
| Appearance | colorless to pale brown yellow clear liquid (est) |
| Assay | 95.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 1.18200 to 1.18800 @ 25.00 °C. |
| Pounds per Gallon - (est). | 9.835 to 9.885 |
| Refractive Index | 1.46600 to 1.47200 @ 20.00 °C. |
| Melting Point | 4.00 to 5.00 °C. @ 760.00 mm Hg |
| Boiling Point | 86.00 to 87.00 °C. @ 12.00 mm Hg, 214.00 °C. @ 760.00 mm Hg |
| Vapor Pressure | 0.273000 mmHg @ 25.00 °C. (est) |
| Flash Point | 214.00 °F. TCC ( 101.11 °C. ) |
| logP (o/w) | -0.600 |
| Shelf Life | 12.00 month(s) or longer if stored properly. |
| Storage | refrigerate in tightly sealed containers. |
| Soluble in | alcohol |
Organoleptic Properties
| Odor Description | buttery |
Safety Information
| Preferred SDS | View |
| European information | Most important hazard(s): |
| Oral/Parenteral Toxicity | Not determined |
| Dermal Toxicity | Not determined |
| Inhalation Toxicity | Not determined |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']
Safety in Use
| Category | flavoring agents |
| Recommendation for 2(5H)-furanone usage levels up to | not for fragrance use. |
| Maximised Survey-derived Daily Intakes (MSDI-EU) | 0.01 (μg/capita/day) |
| Structure Class | III |
| baked goods | - |
| beverages(nonalcoholic) | - |
| beverages(alcoholic) | 3.50000 |
| breakfast cereal | - |
| cheese | - |
| chewing gum | - |
| condiments / relishes | - |
| confectionery froastings | - |
| egg products | - |
| fats / oils | - |
| fish products | - |
| frozen dairy | - |
| fruit ices | - |
| gelatins / puddings | - |
| granulated sugar | - |
| gravies | - |
| hard candy | - |
| imitation dairy | - |
| instant coffee / tea | - |
| jams / jellies | - |
| meat products | 3.80000 |
| milk products | - |
| nut products | - |
| other grains | - |
| poultry | - |
| processed fruits | - |
| processed vegetables | - |
| reconstituted vegetables | - |
| seasonings / flavors | - |
| snack foods | - |
| soft candy | - |
| soups | - |
| sugar substitutes | - |
| sweet sauces | - |
| Dairy products, excluding products of category 02.0 (01.0) | 3.87000 |
| Fats and oils, and fat emulsions (type water-in-oil) (02.0) | 1.00000 |
| Edible ices, including sherbet and sorbet (03.0) | 1.00000 |
| Processed fruit (04.1) | - |
| Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2) | 0.55000 |
| Confectionery (05.0) | 7.64000 |
| Chewing gum (05.3) | - |
| Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0) | 5.33000 |
| Bakery wares (07.0) | 4.08000 |
| Meat and meat products, including poultry and game (08.0) | 0.00800 |
| Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0) | - |
| Eggs and egg products (10.0) | - |
| Sweeteners, including honey (11.0) | - |
| Salts, spices, soups, sauces, salads, protein products, etc. (12.0) | 1.20000 |
| Foodstuffs intended for particular nutritional uses (13.0) | - |
| Non-alcoholic ("soft") beverages, excl. dairy products (14.1) | 1.90000 |
| Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2) | 0.08100 |
| Ready-to-eat savouries (15.0) | 0.05000 |
| Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0) | - |
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Potential Uses
Natural Occurrence
Synonyms
2-
buten-1,4-olide
2-
buten-4-olide
2-
butenoic acid gamma-lactone
2-
butenolide
delta,alpha,beta-
butenolide
gamma-
crotolactone
alpha,beta-
crotonolactone
gamma-
crotonolactone
iso
crotonolactone
2-oxo-2,5-
dihydrofuran
5H-
furan-2-one
furan-2(5H)-one
furan-2(5H)-one; 2-Buten-1,4-olide
2[5H]-
furanone
5-
hydrofuran-2-one
4-
hydroxy-2-butenoic acid gamma-lactone
4-
hydroxy-2-butenoic acid lactone
4-
hydroxycrotonic acid gamma-lactone
gamma-
hydroxycrotonic acid lactone
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