所有图片(3)
About This Item
线性分子式:
[CH3(CH2)3O]2C4(=O)2
CAS号:
分子量:
226.27
MDL號碼:
分類程式碼代碼:
12352100
PubChem物質ID:
NACRES:
NA.22
推荐产品
化驗
98%
形狀
liquid
折射率
n20/D 1.494 (lit.)
bp
139 °C/0.5 mmHg (lit.)
密度
1.047 g/mL at 25 °C (lit.)
SMILES 字串
CCCCOC1=C(OCCCC)C(=O)C1=O
InChI
1S/C12H18O4/c1-3-5-7-15-11-9(13)10(14)12(11)16-8-6-4-2/h3-8H2,1-2H3
InChI 密鑰
XBRWELTXMQSEIN-UHFFFAOYSA-N
一般說明
3,4-二丁氧基-3-环丁烯-1,2-二酮是方酸的二烷基酯。
應用
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。
訊號詞
Warning
危險分類
Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
標靶器官
Respiratory system
儲存類別代碼
10 - Combustible liquids
水污染物質分類（WGK）
WGK 3
閃點（°F）
235.4 °F - closed cup
閃點（°C）
113 °C - closed cup
個人防護裝備
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Seventeen cases of alopecia areata: combination of SADBE topical immunotherapy with other therapies.
Kazumasa Morita et al.
The Journal of dermatology, 29(10), 661-664 (2002-11-16)
Topical immunotherapy is effective for severe alopecia areata. However, there are patients with alopecia areata refractory to topical immunotherapy alone. We tried SADBE (squaric acid dibutylester) topical immunotherapy combined with topical dry ice cryotherapy, carpronium chloride (a parasympathetic nerve stimulant)
Rachid Marhaba et al.
Journal of immunology (Baltimore, Md. : 1950), 179(8), 5071-5081 (2007-10-04)
Induction of a chronic eczema is a most efficient therapy for alopecia areata (AA). We had noted a reduction in regulatory T cells during AA induction and wondered whether regulatory T cells may become recruited or expanded during repeated skin
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
Eileen Tan et al.
International journal of dermatology, 41(11), 748-753 (2002-11-28)
Alopecia areata is believed to be an autoimmune condition with a worldwide occurrence. It usually presents as patchy, nonscarring hair loss. There is a paucity of clinical data in Asians. To study the epidemiology, clinical aspects, associations, and treatment of
F Dall'oglio et al.
The Journal of dermatological treatment, 16(1), 10-14 (2005-05-18)
Severe alopecia areata (AA) may have a chronic relapsing course and is often resistant to current treatments. The aim of our study was to evaluate whether topical immunotherapy with squaric acid dibutylester (SADBE) is able to improve the course of
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