The crude chloroform extract of C. palustre inflorescences was subjected to column chromatography using hexane and mixtures of hexane鈥揺thyl acetate with increasing content of ethyl acetate. Multiple rechromatography of chosen fractions over silica gel columns using hex ......
Define chemical compound. chemical compound synonyms, chemical compound pronunciation, chemical compound translation, English dictionary definition of chemical compound. Noun 1. chemical compound - a substance formed by chemical union of two or more elem
Structure of 氯仿 Oxidation Numbers of CHCl₃Lewis Structure of CHCl₃ C(Cl)(Cl)Cl
To explore anti-tumor active components of Chimonanthus salicifolius, the phytochemistry of the chloroform fraction from leaves extract was investigated by repeated silica gel column chromatography. Twelve compounds were isolated and their structures were identified by physicochemical properties and spectroscopi...
Chloroformic Acid is a chemical compound and has a chemical formula of CHClO₂. 一般特性 公式CHClO₂ Mass / 摩尔质量+79.966507 Da Structure of Chloroformic Acid Oxidation Numbers of CHClO₂Lewis Structure of CHClO₂ C(=O)(O)Cl ...
chloropicrin, nitrochloroform - a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas coordination compound, complex - a compound described in terms of the central atom to which other atoms are bound or coordinated allomorph - any of sever...
溶解度highly soluble in water (108g/100g) at 25°C; soluble in alcohol and miscible with ether; HCl salt is soluble in water and absolute alcohol; compound is insoluble in chloroform, acetone, ether, and ethyl acetate 酸度系数(pKa)10.63(at 25℃) ...
Objective To study the chemical constituents of Acanthopanax senticosus.Methods The compounds were separated and purified by column chromatography and their structures were identified by spectroscopic methods.Results Twelve compounds were isolated from the chloroform and n-butanol extract of A.senticosus,and...
1,1,1-三氯乙烷 is a chemical compound and has a chemical formula of C₂H₃Cl₃.methylchloroform 1,1,1-trichlorethane alpha-T methyltrichloromethane alpha-trichloroethane 1,1,1-TCE trichloro-1,1,1-ethane 一般特性 公式 C₂H₃Cl₃...
Structure of 一氟三氯甲烷 Oxidation Numbers of CCl₃FLewis Structure of CCl₃F C(F)(Cl)(Cl)Cl Single Bonds4 Composition of 一氟三氯甲烷 C1 Cl3 F1