Perfume: A substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell, especially a fluid containing fragrant natural oils extracted from flowers, woods, etc., or similar synthetic oils. (Random House Unabridged Dictionary, 2d ed)KetonesRhodium: Rhodium. A hard and rare metal of the platinum group, atomic number 45, atomic weight 102.905, symbol Rh. (Dorland, 28th ed)Ketone Bodies: The metabolic substances ACETONE; 3-HYDROXYBUTYRIC ACID; and acetoacetic acid (ACETOACETATES). They are produced in the liver and kidney during FATTY ACIDS oxidation and used as a source of energy by the heart, muscle and brain.Organosilicon Compounds: Organic compounds that contain silicon as an integral part of the molecule.Quinolinium CompoundsAlkynes: Hydrocarbons with at least one triple bond in the linear portion, of the general formula Cn-H2n-2.Palladium: A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.Stereoisomerism: The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)Cyclization: Changing an open-chain hydrocarbon to a closed ring. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)Molecular Structure: The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.Catalysis: The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction.Methyl n-Butyl Ketone: An industrial solvent which causes nervous system degeneration. MBK is an acronym often used to refer to it.Tosyllysine Chloromethyl Ketone: An inhibitor of SERINE ENDOPEPTIDASES. Acts as an alkylating agent and is known to interfere with the translation process.Tosylphenylalanyl Chloromethyl Ketone: An inhibitor of Serine Endopeptidases. Acts as alkylating agent and is known to interfere with the translation process.Acetoacetates: Salts and derivatives of acetoacetic acid.3-Hydroxybutyric Acid: BUTYRIC ACID substituted in the beta or 3 position. It is one of the ketone bodies produced in the liver.PropylaminesEncyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Alkanes: The generic name for the group of aliphatic hydrocarbons Cn-H2n+2. They are denoted by the suffix -ane. (Grant & Hackh's Chemical Dictionary, 5th ed)Aldehydes: Organic compounds containing a carbonyl group in the form -CHO.AcetalsPatents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Odors: The volatile portions of substances perceptible by the sense of smell. (Grant & Hackh's Chemical Dictionary, 5th ed)Limonins: A group of degraded TRITERPENES in which the four terminal carbons of the C17 side chain have been removed, and the remaining portion often forming C17 furans.Acorus: A plant genus of the family ACORACEAE, order Arales, subclass Arecidae most notable for Acorus calamus L. root which contains asarone and has been used in TRADITIONAL MEDICINE.Cosmetics: Substances intended to be applied to the human body for cleansing, beautifying, promoting attractiveness, or altering the appearance without affecting the body's structure or functions. Included in this definition are skin creams, lotions, perfumes, lipsticks, fingernail polishes, eye and facial makeup preparations, permanent waves, hair colors, toothpastes, and deodorants, as well as any material intended for use as a component of a cosmetic product. (U.S. Food & Drug Administration Center for Food Safety & Applied Nutrition Office of Cosmetics Fact Sheet (web page) Feb 1995)
These factors relate to the pervasiveness of ketones in perfumery and as solvents. Ketones are classified on the basis of their ... If both alkyl groups in a ketone are the same then the ketone is said to be symmetrical, otherwise unsymmetrical. Although used ... Exceptions to this rule are the unsaturated ketones such as methyl vinyl ketone with LD50 of 7 mg/kg (oral). Diketone Ketone ... The word ketone is derived from Aketon, an old German word for acetone. According to the rules of IUPAC nomenclature, ketones ...
These factors relate to the pervasiveness of ketones in perfumery and as solvents. ... If both alkyl groups in a ketone are the same then the ketone is said to be symmetrical, otherwise unsymmetrical. ... Unsaturated ketonesEdit. Ketones containing alkene and alkyne units are often called unsaturated ketones. The most widely used ... Classes of ketonesEdit. Ketones are classified on the basis of their substituents. One broad classification subdivides ketones ...
Also used as a refrigerant and in the manufacture of smokeless gunpowder, along with use in perfumery. ... They are far less acidic than hydrogens alpha to carbonyl groups (such as in ketones or aldehydes), however. ... The method is effective for generating symmetrical ethers, but not unsymmetrical ethers, since either OH can be protonated, ... the ethers are called mixed or unsymmetrical ethers.[1] A typical example of the first group is the solvent and anesthetic ...
Also used as a refrigerant and in the manufacture of smokeless gunpowder, along with use in perfumery. ... They are far less acidic than hydrogens alpha to carbonyl groups (such as in ketones or aldehydes), however. ... The method is effective for generating symmetrical ethers, but not unsymmetrical ethers, since either OH can be protonated, ... the ethers are called mixed or unsymmetrical ethers.[1] A typical example of the first group is the solvent and anesthetic ...
Acetophenone (C6H5C(O)CH3) is an unsymmetrical ketone.  In the area of stereochemistry, unsymmetrical ketones are known for ... These factors relate to pervasiveness of ketones in perfumery and as solvents.  A ketone that has an α-hydrogen participates ... Microsoft word - ketone. S.5D Wong Pui San Lau Ho Yin Leung Hau Lam Ketone  In organic chemistry, ketones and aldehydes have ... unsymmetrical ketone that is the  Muscone, 3-methylpentadecanone, is an animal pheromone.  Ketones are pervasive in nature ...
These factors relate to the pervasiveness of ketones in perfumery and as solvents. Ketones are classified on the basis of their ... If both alkyl groups in a ketone are the same then the ketone is said to be symmetrical, otherwise unsymmetrical. Although used ... Exceptions to this rule are the unsaturated ketones such as methyl vinyl ketone with LD50 of 7 mg/kg (oral). Diketone Ketone ... The word ketone is derived from Aketon, an old German word for acetone. According to the rules of IUPAC nomenclature, ketones ...
These factors relate to the pervasiveness of ketones in perfumery and as solvents. ... If both alkyl groups in a ketone are the same then the ketone is said to be symmetrical, otherwise unsymmetrical. ... Unsaturated ketonesEdit. Ketones containing alkene and alkyne units are often called unsaturated ketones. The most widely used ... Classes of ketonesEdit. Ketones are classified on the basis of their substituents. One broad classification subdivides ketones ...
Unsymmetrical Pro-accords. Unsymmetrical pro-accords have the capacity to release fragrance accords more complex than the ... ethyl amyl ketone, ethyl pentyl ketone, menthone, methyl-7,3-dihydro-2H-1,5-benzodioxepine-3-one, fenchone, and mixtures ... More preferably the ketones which are released by the ketals of the present invention are α-damascone, β-damascone, δ-damascone ... Modern perfumery involves the artful compounding of fragrance materials to achieve novel fragrance compositions having defined ...
PARAFFIN 3.1A 1224 KETONES,LIQUID,N.O.S. 3.2A 1224 KETONES,LIQUID,N.O.S. 3.3B 1224 KETONES,LIQUID,N.O.S. 3.1A 1226 LIGHTER ... METHYL PROPYL KETONE, MPK, 2-PENTANONE 3.2A 1250 METHYL TRICHLORO SILANE 3.2A 1251 3-BUTENE-2-ONE, METHYL VINYL KETONE 3.2A ... PERFUMERY PRODUCTS WITH INFLAMMABLE SOLVENT, PEFUMERY PRODUCTS,WITH INFLAMMABLE SOLVENT 3.1A 1267 PETROLEUM CRUDE OIL 3.2A 1267 ... UNSYMMETRICAL, 1,1-DIMETHYL HYDRAZINE, UNS-DIMETHYL HYDRAZINE, UDMH 3.1A 1164 DIMETHYL SULPHIDE, METHANE THIOMETHANE, METHYL ...
Also used as a refrigerant and in the manufacture of smokeless gunpowder, along with use in perfumery. ... They are far less acidic than hydrogens alpha to carbonyl groups (such as in ketones or aldehydes), however. ... The method is effective for generating symmetrical ethers, but not unsymmetrical ethers, since either OH can be protonated, ... the ethers are called mixed or unsymmetrical ethers.[1] A typical example of the first group is the solvent and anesthetic ...
Also used as a refrigerant and in the manufacture of smokeless gunpowder, along with use in perfumery. ... They are far less acidic than hydrogens alpha to carbonyl groups (such as in ketones or aldehydes), however. ... The method is effective for generating symmetrical ethers, but not unsymmetrical ethers, since either OH can be protonated, ...
  • The word ketone derives its name from Aketon, an old German word for acetone  According to the rules of IUPAC nomenclature, ketones are named by changing the  All alkanones are named by replacing the last letter ''e'' in the names of the parent  For propanone and butane, there is no need to add a number to specify its position because the carbonyl group must be attached to C2. (medpdffinder.com)
  • The word ketone is derived from Aketon, an old German word for acetone. (wikipedia.org)
  • Ketones are not usually hydrogen-bond donors  Because of their inability to serve both as hydrogen-bond donors and acceptors, ketones tend not to 'self-associate' and are more volatile than alcohols and carboxylic acids of comparable molecular weights. (medpdffinder.com)
  • The ketone carbon is often described as "sp2 hybridized", a description that includes both their electronic and molecular structure. (wikipedia.org)
  • For the most important ketones, however, traditional nonsystematic names are still generally used, for example acetone and benzophenone. (wikipedia.org)