推薦產品
蒸汽密度
2.9 (vs air)
蒸汽壓力
7.9 mmHg ( 20 °C)
形狀
liquid
自燃溫度
590 °F
包含
copper sulfate as stabilizer
折射率
n20/D 1.439 (lit.)
bp
69-70 °C/100 mmHg (lit.)
密度
1.09 g/mL at 25 °C (lit.)
儲存溫度
2-8°C
SMILES 字串
C=C1CC(=O)O1
InChI
1S/C4H4O2/c1-3-2-4(5)6-3/h1-2H2
InChI 密鑰
WASQWSOJHCZDFK-UHFFFAOYSA-N
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應用
用于乙酰乙酸衍生物和杂环化合物的简易制备。[1]
訊號詞
Danger
危險聲明
危險分類
Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Flam. Liq. 3
儲存類別代碼
3 - Flammable liquids
水污染物質分類（WGK）
WGK 1
閃點（°F）
93.2 °F - closed cup
閃點（°C）
34 °C - closed cup
個人防護裝備
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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
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
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
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
Atieh Rezvanian et al.
Molecular diversity, 24(4), 1313-1325 (2019-10-03)
Novel and efficient multicomponent reactions (MCRs) involving diketene, ninhydrin (indane-1,2,3-trione) and one primary amine (3CR) or two different primary amines (4CR) were achieved for the successful synthesis of dihydro-4H-indeno[1,2-b]furan-3-carboxamides or tetrahydroindeno[1,2-b]pyrrole-3-carboxamides, respectively. The merits of this method are highlighted by
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我們的科學家團隊在所有研究領域都有豐富的經驗，包括生命科學、材料科學、化學合成、色譜、分析等.
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