Lycoriella ingenua (Dufour). p-Anisaldehyde is more toxic to house dust mites, Dermatophagoides farina Hughes and D. pteronyssinums (Trouessart), than the synthetic
4-Dimethylaminopyridine (DMAP) is a derivative of pyridine with the chemical formula (CH3)2NC5H4N. This colourless solid is of interest because it is more basic than pyridine, owing to the resonance stabilisation from the NMe2 substituent. Chemical Properties DMAP (m.p. 112-113°C) and PPY...
Oxalyl chloride, also known as oxalyl dichloride, is a highly toxic chemical with the formula (COCl)2. It is a colorless, strong-smelling liquid belonging to the diacetyl chloride group; Soluble in benzene, hexane, ether, and halogenated solvents such as chloroform, acetonitrile, and dichlorometh...
Isopropyl alcohol and rubbing alcohol are used interchangeably by the general public but they are not the same. Here are their key differences: What makes it up? Isopropyl Alcohol is the chemical compound with a molecular formula of C3H8O. Rubbing alcohol is a solution largely made up of is...
It is the simplest secondary alcohol and is one of the isomers of n-propanol. It is a kind of flammable liquid which is colorless with strong smell being similar to the smell of the mixture of ethanol and acetone. It is soluble in water, alcohol, ether, benzene, chloroform and most ...
a红宝石是指颜色呈红色、粉红色的刚玉,化学式为Al2O3,因含微量的杂质元素Cr而呈红色 The ruby is refers to the color to assume, the pink corundum red, the chemical formula is Al2O3, because of assumes red including micro impurity element Cr[translate] ...
The melting point of Capsaicin is 64-68℃, and the boiling point is 210-220℃ (1.33Pa). It is chemically stable and easily soluble in organic solvents such as ethanol, ether, benzene, acetone, and chloroform. It is slightly soluble in carbon dioxide and insoluble in cold water. ...
L-Serine methyl ester hydrochloride is an organic compound with the chemical formula C4H9NO3·HCl. It has a molecular weight of 155.58 g/mol, a density of 1.2 g/cm3, and a melting point of 163℃. It is a white crystalline powder that is soluble in water and ethanol, but almost insolubl...
a mixture of dry ice and a volatile liquid (such as ether, acetone, chloroform, etc.) can form a low temperature bath around -77 degrees celsius. Two. Artificial rainfall and dry ice Artificial methods are used to increase ice crystals in the clouds or to increase precipitation of ice crys...
A 2007studyby Wu YD et al. from Zhejiang University, China, indicates that the steroid fraction of chloroform extract from bee pollen of Brassica campestris L. may be a promising candidate for the treatment of advanced prostate cancer.