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Karavilagenin E
Karavilagenin E is a chemical compound found in the Balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin. Karavilagenin E is soluble in methanol and ethyl acetate but insoluble in ''n''-hexane. See also * Balsaminapentaol * Balsaminol A * Balsaminol B * Cucurbalsaminol A * Cucurbalsaminol B Cucurbalsaminol B or 7β-methoxycucurbita-5,23(E)-diene-3β,12β,25-triol, is a chemical compound with formula , found in the Balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin, isolated b ... References Triterpenes Diols {{organic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound. A compound can be transformed into a different substance by a chemical reaction, which may involve interactions with other substances. In this process, bonds between atoms may be broken and/or new bonds formed. There are four major types of compounds, distinguished by how the constituent atoms are bonded together. Molecular compounds are held together by covalent bonds; ionic compounds are held together by ionic bonds; intermetallic compounds are held together by metallic bonds; coordination complexes are held together by coordinate covalent bonds. Non-stoichiometric compounds form a disputed marginal case. A chemical formula specifies the number of atoms of each element in a compound molecule, using the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balsam Apple )
{{plant common name ...
Balsam apple may refer to: * ''Clusia rosea'', a tree species found in America * ''Momordica balsamina'', a vine species found in Africa * ''Momordica charantia'' (bitter melon), a vine grown for its bitter and edible fruit * ''Echinocystis lobata'' (wild cucumber) * Balsam apple, the common name for species of gourds in the genus ''Echinopepon'' (family Cucurbitaceae The Cucurbitaceae, also called cucurbits or the gourd family, are a plant family consisting of about 965 species in around 95 genera, of which the most important to humans are: *''Cucurbita'' – squash, pumpkin, zucchini, some gourds *''Lagena ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cucurbitane
Cucurbitane is a class of chemical compounds with formula ( CAS number 65441-59-0). It is a polycyclic hydrocarbon, specifically triterpene. It is also an isomer of lanostane (specifically 19(10→9β)-abeolanostane), from which it differs by the formal shift of a methyl group (carbon number 19) from the 10 to the 9β position in the standard steroid numbering scheme.Satish Kumar and Raj Kumar (1991), ''Dictionary of Biochemistry''. Anmol Publications, India The name is applied to two stereoisomers, distinguished by the prefixes 5α- and 5β-, which differ by the handedness of the bonds at a particular carbon atom (number 5 in the standard steroid numbering scheme). File:5alpha-cucurbitane.svg, 5α-Cucurbitane File:5beta-cucurbitane.svg, 5β-Cucurbitane Derivatives Natural compounds Compounds with the basic cucurbitane skeleton are found in many plants, and some are important phytopharmaceuticals. Natural cucurbitane-related compounds include: Named * Balsaminapentaol, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triterpenoid
Triterpenes are a class of chemical compounds composed of three terpene units with the molecular formula C30H48; they may also be thought of as consisting of six isoprene units. Animals, plants and fungi all produce triterpenes, including squalene, the precursor to all steroids. Structures Triterpenes exist in a great variety of structures. Nearly 200 different skeletons have been identified. These skeletons may be broadly divided according to the number of rings present. In general pentacyclic structures (5 rings) tend to dominate. Squalene is biosynthesized through the head-to-head condensation of two farnesyl pyrophosphate units. This coupling converts a pair of C15 components into a C30 product. Squalene serves as precursor for the formation of many triterpenoids, including bacterial hopanoids and eukaryotic sterols. Triterpenoids By definition triterpenoids are triterpenes that possess heteroatoms, usually oxygen. The terms ''triterpene'' and ''triterpenoid'' ofte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cucurbitacin
Cucurbitacin is a class of biochemical compounds that some plants – notably members of the pumpkin and gourd family, Cucurbitaceae – produce and which function as a defence against herbivores. Cucurbitacins are chemically classified as triterpenes, formally derived from cucurbitane, a triterpene hydrocarbon – specifically, from the unsaturated variant cucurbit-5-ene, or 19(10→9β)-abeo-10α-lanost-5-ene. They often occur as glycosides. They and their derivatives have been found in many plant families (including Brassicaceae, Cucurbitaceae, Scrophulariaceae, Begoniaceae, Elaeocarpaceae, Datiscaceae, Desfontainiaceae, Polemoniaceae, Primulaceae, Rubiaceae, Sterculiaceae, Rosaceae, and Thymelaeaceae), in some mushrooms (including Russula and Hebeloma) and even in some marine mollusks. Cucurbitacins may be a taste deterrent in plants foraged by some animals and in some edible plants preferred by humans, like cucumbers and zucchinis. In laboratory research, cucurbitacins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methanol
Methanol (also called methyl alcohol and wood spirit, amongst other names) is an organic chemical and the simplest aliphatic alcohol, with the formula C H3 O H (a methyl group linked to a hydroxyl group, often abbreviated as MeOH). It is a light, volatile, colourless, flammable liquid with a distinctive alcoholic odour similar to that of ethanol (potable alcohol). A polar solvent, methanol acquired the name wood alcohol because it was once produced chiefly by the destructive distillation of wood. Today, methanol is mainly produced industrially by hydrogenation of carbon monoxide. Methanol consists of a methyl group linked to a polar hydroxyl group. With more than 20 million tons produced annually, it is used as a precursor to other commodity chemicals, including formaldehyde, acetic acid, methyl tert-butyl ether, methyl benzoate, anisole, peroxyacids, as well as a host of more specialised chemicals. Occurrence Small amounts of methanol are present in normal, healthy hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethyl Acetate
Ethyl acetate ( systematically ethyl ethanoate, commonly abbreviated EtOAc, ETAC or EA) is the organic compound with the formula , simplified to . This colorless liquid has a characteristic sweet smell (similar to pear drops) and is used in glues, nail polish removers, and in the decaffeination process of tea and coffee. Ethyl acetate is the ester of ethanol and acetic acid; it is manufactured on a large scale for use as a solvent. Production and synthesis Ethyl acetate was first synthesized by the Count de Lauraguais in 1759 by distilling a mixture of ethanol and acetic acid. In 2004, an estimated 1.3 million tonnes were produced worldwide. The combined annual production in 1985 of Japan, North America, and Europe was about 400,000 tonnes. The global ethyl acetate market was valued at $3.3 billion in 2018. Ethyl acetate is synthesized in industry mainly via the classic Fischer esterification reaction of ethanol and acetic acid. This mixture converts to the ester in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexane
Hexane () is an organic compound, a straight-chain alkane with six carbon atoms and has the molecular formula C6H14. It is a colorless liquid, odorless when pure, and with boiling points approximately . It is widely used as a cheap, relatively safe, largely unreactive, and easily evaporated non-polar solvent, and modern gasoline blends contain about 3% hexane. The term ''hexanes'' refers to a mixture, composed largely (>60%) of hexane, with varying amounts of the isomeric compounds 2-methylpentane and 3-methylpentane, and, possibly, smaller amounts of nonisomeric C5, C6, and C7 (cyclo)alkanes. These ''hexanes'' are cheaper than pure hexane and are often used in large-scale operations not requiring a single isomer (e.g., as cleaning solvent or for chromatography). Isomers Uses In industry, hexanes are used in the formulation of adhesive, glues for shoes, leather products, and roofing. They are also used to extract cooking oils (such as canola oil or soy oil) from seeds, for c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balsaminapentaol
Balsaminapentaol or cucurbita-5,25-diene-3β,7β,23(R),24(R),29-pentaol, is a chemical compound with formula , found in the Balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin, isolated by C. Ramalhete and others in 2009. Balsaminepentaol is an amorphous powder soluble in methanol and ethyl acetate but insoluble in ''n''-hexane. It is cytotoxic at about 50 μM. See also * Balsaminol A * Balsaminol B * Cucurbalsaminol A * Cucurbalsaminol B * Karavilagenin E Karavilagenin E is a chemical compound found in the Balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin. Karavilagenin E is soluble in methanol and ethyl acetate but insoluble in ''n''-he ... References {{reflist Triterpenes Polyols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balsaminol A
Balsaminol A or cucurbita-5,24-diene-3β,7β,23(R),29-tetraol, is a chemical compound with formula , found in the Balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin, isolated by C. Ramalhete and others in 2009. Balsaminol A is an amorphous powder soluble in methanol and ethyl acetate but insoluble in ''n''-hexane. It is cytotoxic at about 50 μM. See also * Balsaminapentaol * Balsaminol B * Cucurbalsaminol A * Cucurbalsaminol B * Karavilagenin E Karavilagenin E is a chemical compound found in the Balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin. Karavilagenin E is soluble in methanol and ethyl acetate but insoluble in ''n''-he ... References {{reflist Triterpenes Tetrols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balsaminol B
Balsaminol B or 7β-methoxycucurbita-5,24-diene-3β,23(R),29-triol, is a chemical compound with formula , found in the balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin, isolated by C. Ramalhete and others in 2009. Balsaminol B is an amorphous powder soluble in methanol and ethyl acetate, but insoluble in ''n''-hexane. It is cytotoxic at about 50 μM. See also * Balsaminapentaol * Balsaminol A * Cucurbalsaminol A * Cucurbalsaminol B * Karavilagenin E Karavilagenin E is a chemical compound found in the Balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin. Karavilagenin E is soluble in methanol and ethyl acetate but insoluble in ''n''-he ... References {{reflist Triterpenes Triols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cucurbalsaminol A
Cucurbalsaminol A or cucurbita-5,23(E)-diene-3β,12β,25-triol, is a chemical compound with formula , found in the Balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin, isolated by C. Ramalhete and others in 2009. Cucurbalsaminol A is an amorphous powder soluble in methanol and ethyl acetate but insoluble in ''n''-hexane. Unlike Cucurbalsaminol B, it is not cytotoxic. See also * Balsaminapentaol * Balsaminol A * Balsaminol B * Cucurbalsaminol B * Karavilagenin E Karavilagenin E is a chemical compound found in the Balsam apple vine (''Momordica balsamina''). It is a cucurbitane-type triterpenoid, related to cucurbitacin. Karavilagenin E is soluble in methanol and ethyl acetate but insoluble in ''n''-he ... References {{reflist Triterpenes Polyols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
