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蒸汽密度
2.9 (vs air)
蒸汽压
7.9 mmHg ( 20 °C)
表单
liquid
自燃温度
590 °F
包含
copper sulfate as stabilizer
折射率
n20/D 1.439 (lit.)
沸点
69-70 °C/100 mmHg (lit.)
密度
1.09 g/mL at 25 °C (lit.)
储存温度
2-8°C
SMILES字符串
C=C1CC(=O)O1
InChI
1S/C4H4O2/c1-3-2-4(5)6-3/h1-2H2
InChI key
WASQWSOJHCZDFK-UHFFFAOYSA-N
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应用
用于乙酰乙酸衍生物和杂环化合物的简易制备。
警示用语：
Danger
危险声明
危险分类
Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Flam. Liq. 3
储存分类代码
3 - Flammable liquids
WGK
WGK 1
闪点(°F)
93.2 °F - closed cup
闪点(°C)
34 °C - closed cup
个人防护装备
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
新产品
Nasrin Zohreh et al.
Journal of combinatorial chemistry, 12(4), 497-502 (2010-06-10)
An efficient and simple route for preparation of substituted 1,5-benzodiazepine-2-one containing peptoid backbone is presented. The classical Ugi reaction is considerably extended by application of o-phenylenediamine and diketene as amine and oxo component. 1,3-Dihydro-1,5-benzodiazepine-2-one is generated in situ from these
A Fotedar et al.
Clinical and experimental immunology, 49(2), 317-324 (1982-08-01)
Two acetoacetylated derivatives of Mycobacterium leprae with variable hapten groups and a conjugate with tetanus toxoid were prepared. These were tested as antigens along with unmodified M. leprae in the leucocyte migration inhibition response of leucocytes from clinically, bacteriologically and
R Scandurra et al.
FEBS letters, 231(1), 192-196 (1988-04-11)
Horse liver phosphopantothenoylcysteine decarboxylase (EC 4.1.1.36) is rapidly inactivated by N-acetoacetylation with diketene following a pseudo-first-order kinetics: the presence of substrate quantitatively protects against this inactivation. Histidine photo-oxidation with methylene blue or rose bengal brings about the total loss of
K Tanizawa et al.
Chemical & pharmaceutical bulletin, 37(3), 824-825 (1989-03-01)
Compounds having a structural analogy with diketene have been synthesized and their potencies as beta-lactamase inhibitors have been studied. Among six compounds so far tested, alpha-phenyl-beta-benzylidene-3-propanolide was shown to be an irreversible inhibitor of the enzyme. The availability of simple
P Roch et al.
Biochimica et biophysica acta, 983(2), 193-198 (1989-08-07)
The hemolytic activity exhibited by the coelomic fluid of the Annelid Eisenia fetida andrei is mediated by two lipoproteins of mass 40 and 45 kDa, each of them capable of hemolysis. Such an activity is not inhibited by zymosan, inulin
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