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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 by C. Ramalhete and others in 2009. Cucurbalsaminol B is an amorphous powder soluble in methanol and ethyl acetate but insoluble in ''n''-hexane. It is cytotoxic at about 50 μM The micrometre (Commonwealth English as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, is a unit of length in the International System .... See also * Balsaminapentaol * Balsaminol A * Balsaminol B * Cucurbalsaminol A * Karavilagenin E References {{reflist Triterpenes Triols Methoxy compounds Secondary alcohols Tertiary alcohols ... [...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 or new bonds formed or both. 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, usin ... [...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 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 ... * Karavilagenin E References {{reflist Triterpenes Polyols Primary alcohols Secondary alcohols Vicinal diols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methoxy Compounds
In organic chemistry, a methoxy group is the functional group consisting of a methyl group bound to oxygen. This alkoxy group has the formula . On a benzene ring, the Hammett equation classifies a methoxy substituent at the ''para'' position as an electron-donating group, but as an electron-withdrawing group if at the ''meta'' position. At the ''ortho'' position, steric effects are likely to cause a significant alteration in the Hammett equation prediction, which otherwise follows the same trend as that of the ''para'' position. Occurrence The simplest of methoxy compounds are methanol and dimethyl ether. Other methoxy ethers include anisole and vanillin. Many metal alkoxides contain methoxy groups, such as tetramethyl orthosilicate and titanium methoxide. Esters with a methoxy group can be referred to as methyl esters, and the —COOCH3 substituent is called a methoxycarbonyl. Biosynthesis In nature, methoxy groups are found on nucleosides subjected to 2′-''O''-methyla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triols
In chemistry, a triol is an organic compound containing three hydroxyl groups ( functional groups), such as . See also * chemical compounds with one hydroxyl group ** ** ** Enols ** Ynols * |
Triterpenes
Triterpenes are a class of terpenes composed of six isoprene units with the molecular formula C30H48; they may also be thought of as consisting of three terpene 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'' often are used in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Ethyl acetate commonly abbreviated EtOAc, ETAC or EA) is the organic compound with the formula , simplified to . This flammable, colorless liquid has a characteristic sweet smell (similar to pear drops) and is used in glues, nail polish removers, ... but insoluble in ''n''-hexane. See also * Balsaminapentaol * Balsaminol A * Balsaminol B * Cucurbalsaminol A * Cucurbalsaminol B References Triterpenes Diols {{organic-compound-stub ... [...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 Ethyl acetate commonly ... References {{reflist Triterpenes Tetrols Secondary alcohols Tertiary alcohols ... [...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 Ethyl acetate commonly ... References {{reflist Triterpenes Triols ... [...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 Ethyl acetate commonly ... References {{reflist Triterpenes Tetrols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micromolar
Molar concentration (also called molarity, amount concentration or substance concentration) is the number of moles of solute per liter of solution. Specifically, It is a measure of the concentration of a chemical species, in particular, of a solute in a solution, in terms of amount of substance per unit volume of solution. In chemistry, the most commonly used unit for molarity is the number of moles per liter, having the unit symbol mol/L or mol/ dm3 (1000 mol/ m3) in SI units. A solution with a concentration of 1 mol/L is said to be 1 molar, commonly designated as 1 M or 1 M. Molarity is often depicted with square brackets around the substance of interest; for example, the molarity of the hydrogen ion is depicted as + Definition Molar concentration or molarity is most commonly expressed in units of moles of solute per litre of solution. For use in broader applications, it is defined as amount of substance of solute per unit volume of solution, o ... [...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) * Species of gourds in the genus '' Echinopepon'' (family Cucurbitaceae The Cucurbitaceae (), also called cucurbits or the gourd family, are a plant family (biology), family consisting of about 965 species in 101 genera. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexane
Hexane () or ''n''-hexane is an organic compound, a straight-chain alkane with six carbon atoms and the molecular formula C6H14. Hexane is a colorless liquid, odorless when pure, and with a boiling point of 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 ''n''-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" mixtures 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
