Reference of 105-21-5, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.105-21-5, Name is Gamma-heptalactone, molecular formula is C7H12O2. In a Article£¬once mentioned of 105-21-5
Chemical Variation and Potential of Kaempferia Oils as Larvicide Against Aedes aegypti
The essential oil constituents of the Kaempferia species, specifically K. angustiflora, K. marginata and the three varieties of K. galanga, i.e., K. galanga 1, K. galanga 2 and K. galanga 3 from Chiang Mai Province, Thailand, were studied using gas chromatography-mass spectrometry (GC-MS). Monoterpene hydrocarbons and cinnamate derivatives were identified as the phytochemical markers of these Kaempferia species. The chemical variation of these oils was investigated using Principle Component Analysis (PCA). Cinnamate derivatives were found to be the main components in the three varieties of K. galanga, whereas K. marginata and K. angustiflora consisted of monoterpene hydrocarbons. Comparing the chemical variation between Kaempferia species in this research and other areas in previous reports revealed similar constituents in different quantities. Additionally, the three varieties of K. galanga showed significant larvicidal activity, with LC50 values ranging from 49.03 to 53.48 mug/ml. Based on partial least squares (PLS) regression, delta-3-carene, E-ethyl cinnamate, ethyl-p-methoxycinnamate, gamma-cadinene and n-pentadecane are the dominant compounds and contributed positively to the larvicidal activity.
We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 105-21-5, and how the biochemistry of the body works.Reference of 105-21-5
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Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem