1,3-环戊二酮是一种有机化合物,化学式为(CH2)3(CO)2,它是1,2-环戊二酮的同分异构体。它的烯醇形式比二酮形式更稳定(1-3 kcal/mol),[1]其烯醇结构经X射线衍射表征。[2]
1,3-环戊二酮 | |
---|---|
IUPAC名 cyclopentane-1,3-dione | |
识别 | |
CAS号 | 3859-41-4 |
PubChem | 77466 |
ChemSpider | 69875 |
SMILES |
|
Beilstein | 1362728 |
Gmelin | 200797 |
ChEBI | 41456 |
性质 | |
化学式 | C5H6O2 |
摩尔质量 | 98.1 g·mol−1 |
外观 | 白色固体 |
密度 | 1.37 g/cm3 |
熔点 | 149—151 °C(300—304 °F;422—424 K) |
危险性 | |
GHS危险性符号 | |
GHS提示词 | Warning |
H-术语 | H315, H319, H335 |
P-术语 | P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P403+233, P405 |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
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