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The article discusses chemical composition of Arabidopsis thaliana. It is stated that study has become the model system for studying various aspects of plant biology and biochemistry. It is stated in 2009, wild herbs of A. thaliana were collected from Jiande, Zhejiang, China, and dried and powdered material was extracted with 95% EtOH at room temperature.

The article investigates iridoids and noridoprenoid content of Paederia scandens variety tomentosa, a climbing plant belonging to the genus Paederia that is widely distributed in China, Japan, India, and Malaysia. One norisoprenoid and six iridoids were isolated from the plant, with compounds 1-3 from the genus Paederia and compound 1 from the family Rubiaceae. 80% ethanol was used to extract the dried whole plants of P. scandens variety tomentosa, which were evaporated under vacuum.

Published in Khimiya Prirodnykh Soedinenii, No. 1, January-February, 2020, pp. 127-128 I Zanthoxylum bungeanum i Maxim., which belongs to Rutaceae, is a woody plant with abundant resources and has long been cultivated in tropical and temperate regions of North America, South America, Africa, Asia, and Australia [[1]]. Each subfraction was subsequently purified using Cosmosil 75 C18-OPN with a gradient of H SB 2 sb O-MeOH (1:0, 9:1, 4:1, 100 mL for each step) and Toyopearl HW-40F eluted with H SB 2 sb O to yield B 1 b (17.7 mg). Fraction B was subjected to Toyopearl HW-40F column chromatography with a gradient of H SB 2 sb O-MeOH (1:0, 9:1, 4:1, 7:3, 300 mL for each step) to yield three fractions Frs. [Extracted from the article]

The article presents information on a study conducted on the isolation of alkaloids from the aerial part of the plant Piper flaviflorum, or Piperaceae. The dried and powdered material of the plant was extracted with ethanol under reflux, and after removing the solvent by vaporization, the residue extracts were suspended in water and partitioned by using petroleum ether CH2Cl2 and other compounds.

Chemical investigation on the stems of Schisandra sphenanthera has afforded a novel eudesmene-type sesquiterpenoid, schisansphene A ( 1), and a known compound, alismol ( 2). Their structures and configurations were elucidated by spectroscopic methods, including 2D NMR techniques. [ABSTRACT FROM AUTHOR]

The article presents a study that examines the chemical composition of the essential oil and diethyl ether extract from rhytidium rugosum as well as its therapeutic use. It depicts that essential oil has 31 compounds while diethyl ether has 58 compounds. A chart that lists the percentage chemical components of the oils and ether are presented. It cites that essential oil's main chemical compounds include n-hexadecanoic acid which is anti-thrombosis and can prevent cardiovascular disease.

The article presents information on the chemical constituents of the aerial parts of Rehmannia chingii. Topics discussed include Rehmannia Libosch, Scrophulariaceae family, and use of Dihuang for the treatment of various disorders. Also discussed are the three main types of metabolites including iridoid glycosides, phenylethanoid glycosides, and ionone derivatives.

The article focuses on a study conducted by the authors related to the endophytic fungus Xylaria sp.'s chemical compounds. It states that the fungus was isolated from the liverwort scapania verrucosa. It mentions that the filtrate which was extracted with ethyl acetate was subjected to different types of chromatography. It highlights that compounds found in the fungus were paecilospire, methyl curvulinate and curvulin.

The article presents a study which examines the chemical constituents of the flower of Fritillaria (F.) thunbergii, which has been used as an important crude drug for its antitussive, antiasthmatic, and expectorant effects. The study uses the mass and nuclear magnetic resonance (NMR) spectra to identify the compounds of the flower. Results show that heptadecanol, isorhamnetin, and dihydroapigenin are some of the chemicals found in the flower.

The article focuses on the phenylpropanoids and lignans of the roots of Fagopyrum tataricum plant species. The said compounds include syringaresinol, schizandrin, and graminone B. It mentions the occurrence of the said species in China, which are used in folk medicine in treating incurable and chronic diseases.

The article presents a chemical research about the chloroform extract of the seeds of Caragana microphylla (Leguminosae), a plant widely distributed in the desert of northwest China. The crude extracts of these seeds, which were previously found to exhibit analgesic activities, are examined for their bioactivities.