157902
1,3-二溴-5,5-二甲基海因
98%
别名:
1,3-二溴-5,5-二甲基乙内酰脲
质量水平
方案
98%
mp
197-199 °C (dec.) (lit.)
SMILES字符串
CC1(C)N(Br)C(=O)N(Br)C1=O
InChI
1S/C5H6Br2N2O2/c1-5(2)3(10)8(6)4(11)9(5)7/h1-2H3
InChI key
VRLDVERQJMEPIF-UHFFFAOYSA-N
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应用
用于烷氧基苯甲酸的芳香溴化以及烯烃的溴氟化。
警示用语:
Danger
危险分类
Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Ox. Sol. 3 - Skin Corr. 1B - Skin Sens. 1
储存分类代码
5.1B - Oxidizing hazardous materials
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
M Hilp
Die Pharmazie, 57(7), 471-473 (2002-08-10)
PH. EUR. 2002, JAP 1996 and USP 2000 mineralize organically bound iodine in x-ray contrast media by boiling under reflux with zinc powder in alkaline solution. The reductive mineralization can be performed at room temperature without filtration, when aluminium powder
Manfred Hilp
Journal of pharmaceutical and biomedical analysis, 28(2), 303-309 (2002-04-04)
USP 2000 [The United States Pharmacopeia, Rockville USA, 24th ed., 2000, pp. 1436] and PH. EUR. 1997 [European Pharmacopoeia, third ed., Council of Europe, Strasbourg, 1997, p. 1401] determine propylthiouracil using neutralization titration, whereby 0.1 M silver nitrate and twice
M Hilp
Die Pharmazie, 57(1), 45-48 (2002-02-12)
PH. EUR. 2002 uses elemental bromine performing iron limit tests for maleic acid (iron 5 ppm) and titanium dioxide (iron 200 ppm). 1,3-Dibromo-5,5-dimethylhydantoin (DBH) can replace bromine water. For the iron limit test of maleic acid bivalent iron is oxidized
M Hilp
Die Pharmazie, 56(7), 548-551 (2001-08-08)
The identification of lactate according to Ph. Eur. 1997 and DAB 2000 uses the oxidation of lactic acid to pyruvic acid by boiling with bromine water in sulphuric acid. Acetaldehyde arising by decarboxylation is detected according to Legal applying a
M Hilp
Die Pharmazie, 57(4), 250-251 (2002-05-10)
PH. EUR. 2002 identifies nicotinamid, nicotinic acid, and nikethamide according the reaction of König using cyanogen bromide solution prepared with bromine water and ammonium thiocyanate immediately before use. This colour reaction can be better performed with 1,3-dibromo-5,5-dimethylhydantoin (DBH) and sulphanilic
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