Objective:To investigate the chemical constituents of ethyl ether spirit of seed coat of Iris.Method:To analyze and identify the chemical constituents by GC-MS.Result:We separated the extraction by GC-MS method,and affirmed 26 peaks by NIST workstation and reference documentation.The contents of ...
Chemical formulaC27H22Cl2N4 Physical propertiesDark red crystals; mp 210–212°C; um max (in 0.01M methanolic HCl) 284, 486nm Molecular weight473.405 SolubilityIn dil acetic acid; DMF, chloroform (15:1); ethanol (700:1); ether (1000:1); virtually insoluble in water ...
Cyclic ether chemical compound and general formula (ii) it is displayed with the cation hardening diePROBLEM TO BE SOLVED: To obtain a cationically curing printing ink composition reduced in misting during printing and having excellent suitability even for an overprinting varnish, by combining a ...
Elucidation of chemical compounds responsible for foot malodour Short-chain fatty acids from the socks and feet of subjects either with strong foot odour or with weak or no foot odour were extracted with ethyl ether, and then analysed by gas chromatography/mass spectrometry (GC/MS). Short chain...
Chemicalbook is a platform dedicated to provide the most valuable resources for chemical industry users. Here you can get chemical information (such as chemical physical properties, safety data, Excellent china suppliers and their web addresses and etc.)
(-OH). This structure gives it unique physical and chemical properties, such as a melting point of about 24-26 ° C and a boiling point between 255-259 ° C. In addition, 1-dodecanol is not soluble in water but can be well dissolved in ethanol, benzene, chloroform, ether, and other...
Most of them use a mathematical formula to create the chances of you getting a win. That means that every machine gives you exactly the same odds of hitting a winning combination or losing. There is nothing random about it! Most slot machines use a basic system called a “linear ...
Also known as the "true formula," the molecular formula states the actual number of atoms of the elements in a single molecule. For example, the molecular formula of the sugar glucose is: C6H12O6 Empirical Formula Theempirical formulais the simplest ratio of the whole number of elements in a...
NEW MATERIAL:Menthol tetrahydropyranyl ether of formula. USE:Perfumery or a base of stimulant which is a raw material for useful cosmetics, pharmaceuticals, etc. Harmless to the human body. Soluble in various organic compounds, e.g., alcohols such as ethyl alcohol, aromatic compounds such as ...
Musk chemical composition of mated and unmated males. Musk was separated by diethyl ether and absolute ethyl alcohol solution treatment. All potential musk chemical compositions of Chinese forest musk deer were listed in Table S2. The table only lists the top 15 peak areas of each sample. ...