690198
3,4-二乙氧基-3-环丁烯-1,2-二酮
≥98.0% (GC)
别名:
四方酸二乙酯, 方酸二乙酯
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关于此项目
线性分子式:
(C2H5O)2C4(=O)2
化学文摘社编号:
分子量:
170.16
UNSPSC Code:
12352100
Beilstein/REAXYS Number:
640626
MDL number:
InChI key
DFSFLZCLKYZYRD-UHFFFAOYSA-N
SMILES string
CCOC1=C(OCC)C(=O)C1=O
InChI
1S/C8H10O4/c1-3-11-7-5(9)6(10)8(7)12-4-2/h3-4H2,1-2H3
assay
≥98.0% (GC)
manufacturer/tradename
Lonza Ltd
bp
95 °C/0.1 mmHg (lit.)
density
1.15 g/mL at 25 °C (lit.)
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
target_organs
Respiratory system
存储类别
10 - Combustible liquids
wgk
WGK 3
flash_point_f
230.0 °F - closed cup
flash_point_c
110 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
新产品
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Frederik Wurm et al.
Biomacromolecules, 13(4), 1161-1171 (2012-03-02)
Polymer-protein conjugates generated from side chain functional synthetic polymers are attractive because they can be easily further modified with, for example, labeling groups or targeting ligands. The residue specific modification of proteins with side chain functional synthetic polymers using the
E F Sherertz et al.
Archives of dermatological research, 280(1), 57-60 (1988-01-01)
Squaric acid diethylester and squaric acid dibutylester have been used in contact sensitization therapy of alopecia areata. This study investigated the application of these esters or squaric acid alone to hairless mouse and human skin in vitro to determine squaric
The relationship between sensitization with squaric acid diethylester and IgE-mediated allergy.
P D Pigatto et al.
Bollettino dell'Istituto sieroterapico milanese, 63(3), 226-228 (1984-07-31)
Sensitizing potential of cyclobutenediones.
J Avalos et al.
Contact dermatitis, 21(5), 341-342 (1989-11-01)
M G Wilkerson et al.
Journal of the American Academy of Dermatology, 13(2 Pt 1), 229-234 (1985-08-01)
Two squaric acid diesters, squaric acid diethyl ester (SADEE) and squaric acid dibutyl ester (SADBE), have been suggested as replacements for 2,4-dinitrochlorobenzene in the treatment of alopecia areata and alopecia totalis. We synthesized these squaric acid diesters and examined them
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