87851
2,2,6,6-四甲基-3,5-庚二酮
LiChropur™, ≥98.0%
别名:
二叔戊酰甲烷
等级
derivatization grade ((GC derivatization))
质量水平
方案
≥98.0% (GC)
≥98.0%
表单
liquid
质量
LiChropur™
反应适用性
reagent type: derivatization reagent
reaction type: Acylations
折射率
n20/D 1.456-1.462
n20/D 1.459 (lit.)
沸点
72-73 °C/6 mmHg (lit.)
密度
0.883 g/mL at 25 °C (lit.)
SMILES字符串
CC(C)(C)C(=O)CC(=O)C(C)(C)C
InChI
1S/C11H20O2/c1-10(2,3)8(12)7-9(13)11(4,5)6/h7H2,1-6H3
InChI key
YRAJNWYBUCUFBD-UHFFFAOYSA-N
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一般描述
Acylation, a replacement to silylation, allows the conversion of compounds that consist of active hydrogens (-OH, -SH and -NH) into esters, thioesters, and amides via the action of a carboxylic acid or derivative. The carbonyl group adjacent to the halogenated carbons is known to improve the electron capture detector (ECD) response. Acylation has several advantages:
2,2,6,6-Tetramethyl-3,5-heptanedione is a reagent used to form fragmentation-directing derivatives for GC/MS analysis.
- It enhances the stability of compounds by protecting unstable groups.
- It may confer volatility on substances like carbohydrates or amino acids, that have several polar groups that they are non-volatile and usually decompose on heating.
- It facilitates the separations not possible with underivatized compounds.
- Compounds are detectable at very low levels with an ECD.
2,2,6,6-Tetramethyl-3,5-heptanedione is a reagent used to form fragmentation-directing derivatives for GC/MS analysis.
法律信息
LiChropur is a trademark of Merck KGaA, Darmstadt, Germany
储存分类代码
10 - Combustible liquids
WGK
WGK 1
闪点(°F)
152.6 °F - closed cup
闪点(°C)
67 °C - closed cup
个人防护装备
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
新产品
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[reaction: see text]. In the copper salt catalyzed ether formation from aryl bromides or iodides and phenols, 2,2,6,6-tetramethylheptane-3,5-dione (TMHD) was found to greatly accelerate the ordinarily difficult reaction, making it occur under more moderate temperatures and reaction times. A series
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The potential of the stable isotope 26Mg (natural abundance 11.01 atom %) as a biological tracer has been explored using neutron activation (NA) and mass spectrometry (MS) for detection. The high natural abundance of this isotope restricts its utility to
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Laser photoionization and ligand photodissociation in Ln(thd)(3) (Ln = Eu, Tb, Gd; thd = 2,2,6,6-tetramethyl-3,5-heptanedionato) are studied in a molecular beam via time-of-flight mass spectrometry. The fragmentation patterns are strongly wavelength dependent. With 355 nm excitation, the mass spectrum is
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