γ-巴豆酸内酯（CAS 497-23-4）：分子式 C4H4O2、分子量 84.07。
| CAS号 | 497-23-4 |
|---|---|
| 分子式 | C4H4O2 |
| 分子量 | 84.07 |
| 熔点 | 4-5 °C |
| 沸点 | BP: 86-87 °C at 12 mm Hg |
| LogP | log Kow = -0.60 |
γ-巴豆酸内酯 是一种化工化合物，登记 CAS 号为 497-23-4，分子式 C4H4O2（分子量 84.07）。
登记 CAS 号：497-23-4
其分子式 C4H4O2 由 4 个碳、4 个氢、2 个氧 组成。
别名/同义词：γ-巴豆酸内酯 · gamma-crotonolactone
γ-巴豆酸内酯 的 CAS 登记号为 497-23-4。
分子式 C4H4O2，分子量 84.07。
别名/同义词：γ-巴豆酸内酯、gamma-crotonolactone。
γ-巴豆酸内酯（CAS 497-23-4）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 497-23-4 |
|---|---|
| PubChem CID | 10341 |
| Molecular formula | C4H4O2 |
| IUPAC name | 2H-furan-5-one |
| UNII (FDA) | 8KXK25H388 |
| FEMA number | 4138 |
| JECFA number | 2000 |
| Molecular Weight | 84.07 |
|---|---|
| XLogP3 | -0.6 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 84.021129366 |
| Monoisotopic Mass | 84.021129366 |
| Topological Polar Surface Area | 26.3 |
| Heavy Atom Count | 6 |
| Boiling Point | BP: 86-87 °C at 12 mm Hg |
|---|---|
| Boiling Point | 86.00 to 87.00 °C. @ 12.00 mm Hg |
| Boiling Point | 52-53 °C |
| Melting Point | 4-5 °C |
| Melting Point | 4.5 °C |
| Flash Point | 101 °C (214 °F) (Closed cup) |
| Density | 1.185 mg/L at 25 °C |
| Density | 1.183-1.187 |
| LogP | log Kow = -0.60 |
| LogP | -0.60 |
2(5H)-Furanone; 497-23-4; Furan-2(5H)-one; Isocrotonolactone; 2-Butenolide; 2H-furan-5-one; 2-Oxo-2,5-dihydrofuran; 2,5-dihydrofuran-2-one; 4-Hydroxy-2-butenoic acid lactone; gamma-Crotolactone; alpha,beta-Crotonolactone; 2,5-Dihydrofuranone; delta,alpha,beta-Butenolide; gamma-Hydroxycrotonic acid lactone; 2-Butenoic acid gamma-lactone; 2-Butenoic acid-gamma-lactone
| Regulatory & Food Contact | EU Flavoring substances FDA Substance added to food: FLAVORING AGENT OR ADJUVANT Flavoring Agents FLAVOURING_AGENT: Flavouring Agent 4-HYDROXY-2-BUTENOIC ACID γ-LACTONE No safety concern at current levels of intake when used as a flavouring agent |
|---|
| Reported hazard statements | H302 (96.8%), H315, H319, H335 |
|---|
H302 (96.8%): Harmful if swallowed [Warning Acute toxicity, oral]
P264, P270, P301+P317, P330, and P501 (click each P-code to see the statement)
gamma-crotonolactone · CAS 497-23-4 · C4H4O2. UNII 8KXK25H388. Boiling Point: BP: 86-87 °C at 12 mm Hg; Boiling Point: 86.00 to 87.00 °C. @ 12.00 mm Hg; Boiling Point: 52-53 °C.
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: gamma-crotonolactone