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1,2,3,4-Cyclohexanetetrol
1,2,3,4-Cyclohexanetetrol (also named cyclohexane-1,2,3,4-tetrol, 1,2,3,4-tetrahydroxycyclohexane, or ''ortho''-cyclohexanetetrol) is an organic compound whose molecule can be described as a cyclohexane with four hydroxyl (OH) groups substituted for hydrogen atoms on four consecutive carbon atoms. Its formula can be written , , or (––)4(––)2. There are 10 isomers with this same structural formula, which are among the 43 isomers of cyclohexanetetrol. They are all polyols, more specifically tetrols and cyclitols. Some of them have biologically important roles in some organisms. Isomers and nomenclature There are 10 different isomer In chemistry, isomers are molecules or polyatomic ions with identical molecular formulae – that is, same number of atoms of each element – but distinct arrangements of atoms in space. Isomerism is existence or possibility of isomers. Iso ...s of this compound, that differ in the orientation of the four hydroxyls relative to the mean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclitol
In organic chemistry, a cyclitol is a cycloalkane containing at least three hydroxyl, each attached to a different ring carbon atom. The general formula for an unsubstituted cyclitol is or where 3 ≤ ''x'' ≤ ''n''. The name is also used for compounds that can be viewed as result of substituting various functional groups for the hydrogen atoms in such a molecule, as well as similar molecules with one or more double bonds in the ring. Cyclitols and their derivatives are some of the compatible solutes which are formed in a plant as a response to salt or water stress. Some cyclitols (e.g. quinic or shikimic acid) are parts of hydrolysable tannins. Isomerism and nomenclature Unsubstituted cyclitols with the same ring size and number of hydroxyls may exist in several structural isomers, depending on the position of the hydroxyls along the ring. For example, cyclohexanetriol exists in three distinct isomers (1,2,3-, 1,2,4-, and 1,3,5-). Furthermore, the hydrogen and the hydroxyl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclohexanetetrol
A cyclohexanetetrol is a chemical compound consisting of a cyclohexane molecule with four hydroxyl groups (–OH) replacing four of the twelve hydrogen atoms. It is therefore a cyclitol (cyclic polyol). Its generic formula is or . Some cyclohexanetetrols have biologically important roles in some organisms. Isomers There are several cyclohexanetetrol isomers that differ on the position of the hydroxyl groups along the ring, and on their orientation relative to the mean plane of the ring. The isomers with each hydroxyl on a distinct carbon are: * 1,2,3,4-Cyclohexanetetrol or ''ortho''- (10 isomers, including 4 enantiomer pairs) * 1,2,3,5-Cyclohexanetetrol or ''meta''- (8 isomers, including 2 enantiomer pairs) * 1,2,4,5-Cyclohexanetetrol or ''para''- (7 isomers, including 2 enantiomer pairs) 1,2,3,4-cyclohexanetetrol (generic).png, 1,2,3,4''ortho'' 1,2,3,5-cyclohexanetetrol (generic).png, 1,2,3,5''meta'' 1,2,4,5-cyclohexanetetrol (generic).png, 1,2,4,5''para'' Possible iso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organic Compound
In chemistry, organic compounds are generally any chemical compounds that contain carbon-hydrogen or carbon-carbon bonds. Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. The study of the properties, reactions, and syntheses of organic compounds comprise the discipline known as organic chemistry. For historical reasons, a few classes of carbon-containing compounds (e.g., carbonate salts and cyanide salts), along with a few other exceptions (e.g., carbon dioxide, hydrogen cyanide), are not classified as organic compounds and are considered inorganic. Other than those just named, little consensus exists among chemists on precisely which carbon-containing compounds are excluded, making any rigorous definition of an organic compound elusive. Although organic compounds make up only a small percentage of Earth's crust, they are of central importance because all known life is based on organic compounds. Living t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peroxide
In chemistry, peroxides are a group of compounds with the structure , where R = any element. The group in a peroxide is called the peroxide group or peroxo group. The nomenclature is somewhat variable. The most common peroxide is hydrogen peroxide (), colloquially known simply as "peroxide". It is marketed as solutions in water at various concentrations. Many organic peroxides are known as well. In addition to hydrogen peroxide, some other major classes of peroxides are: * Peroxy acids, the peroxy derivatives of many familiar acids, examples being peroxymonosulfuric acid and peracetic acid, and their salts, one example of which is potassium peroxydisulfate. * Main group peroxides, compounds with the linkage (E = main group element). * Metal peroxides, examples being barium peroxide (), sodium peroxide () and zinc peroxide Zinc peroxide (ZnO2) appears as a bright yellow powder at room temperature. It was historically used as a surgical antiseptic. More recently zinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Valente
Peter may refer to: People * List of people named Peter, a list of people and fictional characters with the given name * Peter (given name) ** Saint Peter (died 60s), apostle of Jesus, leader of the early Christian Church * Peter (surname), a surname (including a list of people with the name) Culture * Peter (actor) (born 1952), stage name Shinnosuke Ikehata, Japanese dancer and actor * ''Peter'' (album), a 1993 EP by Canadian band Eric's Trip * ''Peter'' (1934 film), a 1934 film directed by Henry Koster * ''Peter'' (2021 film), Marathi language film * "Peter" (''Fringe'' episode), an episode of the television series ''Fringe'' * ''Peter'' (novel), a 1908 book by Francis Hopkinson Smith * "Peter" (short story), an 1892 short story by Willa Cather Animals * Peter, the Lord's cat, cat at Lord's Cricket Ground in London * Peter (chief mouser), Chief Mouser between 1929 and 1946 * Peter II (cat), Chief Mouser between 1946 and 1947 * Peter III (cat), Chief Mouser between 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Théodore Posternak
Théodore is the French version of the masculine given name Theodore. Given name * Théodore Caruelle d'Aligny (1798–1871), French landscape painter and engraver * Théodore Anne (1892–1917), French playwright, librettist, and novelist * Théodore Année (1810 – after 1865), French horticulturist *Théodore Jean Arcand (born 1934), Canadian diplomat *Théodore Aubanel (1829–1886), Provençal poet *Théodore Aubert (1878–1963), Swiss lawyer and writer *Théodore Bachelet (1820–1879), French historian and musicologist *Théodore Bainconneau (fl. 1920), French wrestler * Théodore Ballu (1817–1885), French architect * Théodore de Banville (1823–1891), French poet and writer *Théodore Baribeau (1870–1937), Quebec politician *Théodore Baron (1840–1899), Belgian painter *Théodore Barrière (1823–1877), French dramatist * Théodore Baudouin d'Aubigny (1780–1866), French playwright * Théodore de Bèze (1519–1605), French Protestant theologian * Théodore Botr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1,2;3,4-diepoxy-cyclohexane
Onekama ( ) is a village in Manistee County in the U.S. state of Michigan. The population was 411 at the 2010 census. The village is located on the shores of Portage Lake and is surrounded by Onekama Township. The town's name is derived from "Ona-ga-maa," an Anishinaabe word which means "singing water." Geography According to the United States Census Bureau, the village has a total area of , all land. The M-22 highway runs through downtown Onekama. History The predecessor of the village of Onekama was the settlement of Portage at Portage Point, first established in 1845, at the western end of Portage, at the outlet of Portage Creek. In 1871, when landowners around the land-locked lake became exasperated with the practices of the Portage Sawmill, they took the solution into their own hands and dug a channel through the narrow isthmus, opening a waterway that lowered the lake by 12 to 14 feet and brought it to the same level as Lake Michigan. When this action dried out Portag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adrien Ruyer
Adrien is a given name and surname, and the French spelling for the name Adrian. It is also the masculine form of the feminine name Adrienne. It may refer to: People Given name * Adrien Auzout (1622–1691), French astronomer * Adrien Baillet (1649–1706), French scholar and critic * Adrien Brody (born 1973), American actor * Adrien Broom, American photographer * Adrien, Count of Rougé (1782–1838), French statesman * Adrien de Wignacourt (1618–1697), Grand Master of the Knights Hospitaller * Adrien Douady (1935–2006), French mathematician * Adrien Duvillard (alpine skier born 1969), French Olympic alpine skier * Adrien Manglard (1695–1760), French painter * Adrien Perruchon (born 1983), French conductor * Adrien Rabiot (born 1995), French soccer player * Adrien Robinson (born 1988), American football player * Adrien Silva (born 1989), Portuguese-French footballer * Adrien Tremblay (2000–today), French-Canadian normal man * Adrien Voisin (1890–1979) American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Bedos
Pierre is a masculine given name. It is a French form of the name Peter. Pierre originally meant "rock" or "stone" in French (derived from the Greek word πέτρος (''petros'') meaning "stone, rock", via Latin "petra"). It is a translation of Aramaic כיפא (''Kefa),'' the nickname Jesus gave to apostle Simon Bar-Jona, referred in English as Saint Peter. Pierre is also found as a surname. People with the given name * Abbé Pierre, Henri Marie Joseph Grouès (1912–2007), French Catholic priest who founded the Emmaus Movement * Monsieur Pierre, Pierre Jean Philippe Zurcher-Margolle (c. 1890–1963), French ballroom dancer and dance teacher * Pierre (footballer), Lucas Pierre Santos Oliveira (born 1982), Brazilian footballer * Pierre, Baron of Beauvau (c. 1380–1453) * Pierre, Duke of Penthièvre (1845–1919) * Pierre, marquis de Fayet (died 1737), French naval commander and Governor General of Saint-Domingue * Prince Pierre, Duke of Valentinois (1895–1964), father o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conduritol
Conduritol or 1,2,3,4-cyclohexenetetrol is any of the organic compounds with chemical formula C6H10O4, that can be seen as derivatives of cyclohexene with four hydroxyl groups (OH) replacing hydrogen atoms on the four carbon atoms not adjacent to the double bond. They are therefore cyclic polyols or cyclitols. The compounds in this group exhibit cis–trans isomerism, with six isomers that differ by the relative positions of the hydroxyls compared to the mean plane of the ring. In addition, some of these can exist as two distinct enantiomers. Only the A and B isomers have been found in nature. The first conduritol was isolated in 1908 by K. Kübler K. Kübler (1908), Arch. Phann. Ber. Stsch. Pharm. 246,620. from the bark of the vine '' Marsdenia cundurango'', hence its name. A number of conduritol derivatives has antifeedant, antibiotic, tumour-inhibitory, antileukemic, and growth-regulating activity. See also * Inositol Inositol, or more precisely ''myo''-inositol, is a car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrol
In organic chemistry, a polyol is an organic compound containing multiple hydroxyl groups (). The term "polyol" can have slightly different meanings depending on whether it is used in food science or polymer chemistry. Polyols containing two, three and four hydroxyl groups are diols, triols, and tetrols, respectively. Classification Polyols may be classified according to their chemistry. Some of these chemistries are polyether, polyester, polycarbonate and also acrylic polyols. Polyether polyols may be further subdivided and classified as polyethylene oxide or polyethylene glycol (PEG), polypropylene glycol (PPG) and Polytetrahydrofuran or PTMEG. These have 2, 3 and 4 carbons respectively per oxygen atom in the repeat unit. Polycaprolactone polyols are also commercially available. There is also an increasing trend to use biobased (and hence renewable) polyols. Uses Polyether polyols have numerous uses. As an example, polyurethane foam is a big user of polyether polyols. P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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