97% 4周 不含税
化合物简介
Tetronic acid is a chemical compound, classified as a γ-lactone, with the molecular formula C4H4O3.
It interconverts between keto and enol tautomers. Many natural products such as ascorbic acid (vitamin C), penicillic acid, pulvinic acids, and abyssomicins possess the β-keto-γ-butyrolactone motif of tetronic acid.
In organic synthesis, it is used as a precursor for other substituted and ring-fused furans and butenolides. It is also forms the structural core of a class of pesticides, known as tetronic acid insecticides, which includes spirodiclofen and spiromesifen.
It interconverts between keto and enol tautomers. Many natural products such as ascorbic acid (vitamin C), penicillic acid, pulvinic acids, and abyssomicins possess the β-keto-γ-butyrolactone motif of tetronic acid.
In organic synthesis, it is used as a precursor for other substituted and ring-fused furans and butenolides. It is also forms the structural core of a class of pesticides, known as tetronic acid insecticides, which includes spirodiclofen and spiromesifen.
基本信息
- 中文名称：
- 4-羟乙酰乙酸内酯
- 中文别名：
- 特窗酸;
2,4-二氧四氢呋喃;
2,4-二氧四氫呋喃;
季酮酸;
- 英文名称：
- Tetronic Acid
- 英文别名：
- Tetrahydrofuran-2,4-dione;
oxolane-2,4-dione;
Tetronic acid;
- CAS号：
- 4971-56-6
- 分子式：
- C4H4O3
- 分子量：
- 100.07300
- 精确质量：
- 100.01600
- PSA：
- 43.37000
分析方法
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| 柱型 | 活性相 | 温度 (°C) | 保留指数 (I) | 参考文献 |
|---|---|---|---|---|
| 毛细管柱 | DB-1 | 833. | Lu, Yu, et al., 1997 |
物化性质
- 密度：
- 1.375g/cm3
- 熔点：
- 139-140°C (dec.)
- 沸点：
- 324.3ºC at 760mmHg
- 闪点：
- 151.1ºC
- 折射率：
- 1.47
- 储存条件：
- Refrigerator
安全信息
- 海关编码：2932190090
- 危险类别码：R36/37/38
- 安全说明：S26-S36/37/39-S36
- 危险品标志：Xi
