339792
3,4-二丁氧基-3-环丁烯-1,2-二酮
98%
别名:
方酸二正丁酯
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关于此项目
线性分子式:
[CH3(CH2)3O]2C4(=O)2
化学文摘社编号:
分子量:
226.27
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
产品名称
3,4-二丁氧基-3-环丁烯-1,2-二酮, 98%
InChI
1S/C12H18O4/c1-3-5-7-15-11-9(13)10(14)12(11)16-8-6-4-2/h3-8H2,1-2H3
SMILES string
CCCCOC1=C(OCCCC)C(=O)C1=O
InChI key
XBRWELTXMQSEIN-UHFFFAOYSA-N
assay
98%
form
liquid
refractive index
n20/D 1.494 (lit.)
bp
139 °C/0.5 mmHg (lit.)
density
1.047 g/mL at 25 °C (lit.)
functional group
ether
ketone
Quality Level
Application
3,4-二丁氧基-3-环丁烯-1,2-二酮用于合成新型半方酸染料，可用于在水性介质中进行高选择性Hg2+传感。它也用于合成3-丁氧基-4-(1,3,3-三甲基-2,3-二氢-1H-2-吲哚基亚甲基)-3-环丁烯-1,2-二酮的中间体方酸染料。
General description
3,4-二丁氧基-3-环丁烯-1,2-二酮是方酸的二烷基酯。
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - 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
235.4 °F - closed cup
flash_point_c
113 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Amy J McMichael et al.
Dermatology nursing, 16(4), 333-336 (2004-10-09)
Though many therapies exist for alopecia areata, one of the most unique is topical sensitization. By altering the pathogenic inflammatory response with few side effects, sensitizers offer an attractive treatment option for many patients with alopecia areata, including those who
Molecular and crystal structure of 3-butoxy-4-(1, 3, 3-trimethyl-2, 3-dihydro-1H-2-indolylidenemethyl)-3-cyclobutene-1, 2-dione and its thio analog.
Shishkina SV, et al.
Journal of Structural Chemistry, 46(1), 154-158 (2005)
Cutaneous lymphoid hyperplasia related to squaric acid dibutyl ester.
Eric A Millican et al.
Journal of the American Academy of Dermatology, 65(1), 230-232 (2011-06-18)
Aaron E Scott et al.
Toxicology and applied pharmacology, 183(1), 66-70 (2002-09-10)
The ability of chemical or pharmaceutical agents to induce allergic contact dermatitis (ACD) is of major health and regulatory concern. As such, tests to identify their sensitizing capacity, such as the guinea pig maximization test and the more recently developed
C Ajith et al.
Journal of drugs in dermatology : JDD, 5(3), 262-266 (2006-04-01)
Immunotherapy with sqauric acid dibutyl ester (SADBE) is a well-accepted therapy for alopecia areata. To study efficacy, safety, and factors influencing the outcome in the treatment of alopecia areata. During a 4-year period, 70 patients of alopecia areata, unresponsive to
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