# The Volatile Compounds Composition of Different Parts of Wild Kazakhstan _Sedum eversii_ Ledeb.
## 3 Results and Discussion
Dihydroxyacetone (DHA) is chiefly recognized for its role as the active ingredient in sunless tanning products, where it reacts with amino acids in the skin to produce a temporary tan appearance [49]. Various other substances exclusively found in stems and leaves, include 1-Deoxy-d-arabitol (11.83%), 1,3-Cyclopentanediol, cis- (2.71%), \(\beta\)-D-Ribopyranoside, methyl (2.47%), \(\beta\)-d-Lysofuranoside, methyl (1.90%), (S)-(+)-2',3'-Dideoxyribonolactone (0.63%), 2-Cyclopenten-1-one, 2-hydroxy-3-methyl- (0.32%), 1,2,3-Propanetriol, 1-acetate (0.32%), and Phenol (0.14%). Researchers hypothesize that these substances may possess various biological activities, potentially applicable in medicinal chemistry. Each compound may exhibit a spectrum of pharmacological effects depending on its specific chemical properties, concentrations, and interactions with biological systems [50]. In the flowering aerial part, two organic acids were identified: The first is 9,12-Octadecatienoic acid, ethyl ester (2.94%); this compound is an ethyl ester derivative of linoleic acid, which is an essential fatty acid. Linoleic acid is involved in various physiological processes and has potential health benefits, including cardiovascular health and anti-inflammatory properties [51]. The second is Phenol, 2,4-bis(1,1-dimethylethyl)- (1.35%); this compound is commonly known as 2,4-di-tert-butylphenol. It has antioxidant properties and is often used as a stabilizer in various products such as fuels, lubricants, and plastics Additionally, it may exhibit antimicrobial properties. 7-Oxabicyclo[4,1,0]heptane, 1-methyl-4-(2-methyloxiranyl)- (1.08%) is a bicyclic compound containing an oxirane (epoxide) functional group, indicating potential reactivity that could lead to various biological activities or applications in medicinal chemistry. 3,4-Dihydroxy-5-methyl-dihydrofuran-2-one (0.98%), also known as 5-methyl-3,4-dihydroxy-2(5H)-furanone or 5-methyl-2,3-dihydro-4-pyran-4-one, is a derivative of furanone with potential antioxidant or antimicrobial properties [52]. Furanones have been investigated for their potential health benefits and applications in food preservation [53]. Ethyl \(\beta\)-d-riboside (ranging from 0.98% to 2.12%) and Phenol, 2,6-dimethoxy- (ranging from 0.45% to 1.19%) were identified in all parts of _S. euresii_. Ethyl \(\beta\)-d-riboside, a derivative of ribose, a type of sugar molecule, may exert various pharmacological effects depending on its metabolism and interactions within the body [54]. Ribose derivatives are sometimes investigated for their potential applications in nucleoside synthesis or as pharmaceutical intermediates [55]. Phenol, 2,6-dimethoxy-, a derivative of phenol, a widely studied chemical compound with diverse pharmacological properties, may have altered biological activity due to the addition of methoxy groups at positions 2 and 6 of the phenol ring [56]. Phenolic compounds, including methoxyphenols, are recognized for their antioxidant, antimicrobial, and potentially anti-inflammatory properties [52]. However, the specific pharmacological effects of 2,6-dimethoxypol would depend on factors such as concentration, route of administration, and target biological systems. Monoterpenes were abundant across the plant parts, with distinct compositions: the root (underground part) contained 28.58% aliphatic monoterpenes, 54.41% oxygenated monoterpenoids, 1.42% diterpenoids, and 15.59% other compounds; the root (aerial part) exhibited 1.34% aliphatic monoterpenes, 31.28% oxygenated monoterpenoids, 6.16% diterpenoids, and 61.22% other compounds; the stem and leaves showed 3.06% aliphatic monoterpenes, 21.49% oxygenated monoterpenoids, 17.99% diterpenoids, and 57.46% other compounds; and the flowering aerial part displayed 8.20% aliphatic monoterpenes, 53.18% oxygenated monoterpenoids, 23.75% diterpenoids, and 14.87% other compounds. Diterpenes, notably Phytol, were prominently present in the leaf, stem, and flowering aerial parts.