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Alpine woodfern

Dryopteris wallichiana, the alpine wood fern, is a robust species of deciduous or semi-evergreen fern in the family Dryopteridaceae, native to the Himalayas, Hawaii, Mexico and Jamaica. It grows to 90 cm tall, occasionally 180 cm by 75 cm wide, w ...


Alabama skullcap

Alabama skullcap is an erect perennial herb, usually 4.5-6 cm tall, that produces blue and white flowers in an elongated cluster rarely, flanked by 2 lateral clusters. Blooms early June-early July. It is one of 300-400 members of the Scutellaria ...






April beauty

Trimezia is a genus of flowering plants in the family Iridaceae, native to the warmer parts of southern Mexico, Central America, South America, Florida, and the West Indies. Trimezia is placed in the tribe Trimezieae. The division of the tribe in ...




Acetoacetic acid

Acetoacetic acid is the organic compound with the formula CH 3 COCH 2 COOH. It is the simplest beta-keto acid, and like other members of this class, it is unstable. The methyl and ethyl esters, which are quite stable, are produced on a large scal ...



2-Heptanone, also known as methyl n -amyl ketone, or Heptan-2-one, is a ketone with the molecular formula C 7 H 14 O. It is a colorless, water-like liquid with a banana-like, fruity odor. 2-Heptanone has a neutral formal charge, and is only sligh ...



3-Heptanone, is a seven carbon ketone. It is a colorless liquid with a "green odor," also described to have a fruity scent. It is often used as a perfume/fragrance, as a solvent for cellulose, nitrocellulose, or vinyl resins, and as a synthetic b ...





3-Octanone is a natural ketone found in a variety of sources such as plants, herbs, and fruits. It is used as a flavor and fragrance ingredient. 3-Octanone is a positional isomer of 2-octanone and 4-octanone. It was also found to be present in sc ...



Chalconoids Greek: χαλκός khalkos, "copper", due to its color), also known as chalcones, are natural phenols related to chalcone. They form the central core for a variety of important biological compounds. They show antibacterial, antifungal, ant ...



The enzyme 6-deoxychalcone synthase uses malonyl-CoA, 4-coumaroyl-CoA, NADPH, and H + to produce CoA, isoliquiritigenin, CO 2, NADP +, and H 2 O. The enzyme isoliquiritigenin 2-O-methyltransferase further transforms isoliquiritigenin into 2-O-met ...



A retrochalcone is a chalcone-like compound in which the normally present hydroxy groups at the 2 and 6 positions are missing. The retrochalcone structure has a propenal bridge connected to two benzene rings at each end. The ring closest to the o ...


Chalconoid glycosides





Glyoxal is an organic compound with the chemical formula OCHCHO. It is the smallest dialdehyde. It is a crystalline solid, white at low temperatures and yellow near the melting point. The liquid is yellow, and the vapor is green. Pure glyoxal is ...



2.3.4-Pentanetrione is the simplest linear triketone, a ketone with three C=O groups. It is an organic molecule with formula CH 3 COCOCOCH 3.





1.2-Benzoquinone, also called ortho -benzoquinone, is an organic compound with formula C 6 H 4 O 2. It is one of the two isomers of quinone, the other being 1.4-benzoquinone. It is a red volatile solid that is soluble in water and ethyl ether. It ...



Benzylideneacetone is the organic compound described by the formula C 6 H 5 CH=CHCCH 3. Although both cis - and trans -isomers are possible for the α,β-unsaturated ketone, only the trans isomer is observed. Its original preparation demonstrated t ...



2-Cyclopentenone is a ketone with chemical formula C 5 H 6 O and CAS number 930-30-3. It is structurally similar to cyclopentanone, with the additional feature of α-β unsaturation in the ring system. 2-Cyclopentenone contains two functional group ...



Cyclopropenone is an organic compound with molecular formula C 3 H 2 O consisting of a cyclopropene carbon framework with a ketone functional group. It is a colorless, volatile liquid that boils near room temperature. Neat cyclopropenone polymeri ...



Lactucopicrin is a bitter substance that has a sedative and analgesic effect, acting on the central nervous system. It is a sesquiterpene lactone, and is a component of lactucarium, derived from the plant Lactuca virosa, as well as being found in ...



Levoglucosenone is a bridged, unsaturated heterocyclic ketone formed from levoglucosan by loss of two molecules of water. It is the major component produced during the acid-catalysed pyrolysis of cellulose, D -glucose, and levoglucosan.


Methyl vinyl ketone

Methyl vinyl ketone is the organic compound with the formula CH 3 CCH=CH 2. It is a reactive compound classified as an enone, in fact the simplest example thereof. It is a colorless, flammable, highly toxic liquid with a pungent odor. It is solub ...



trans -2-Methyl-2-butenal is an organic compound with the formula CH 3 CH=CCHO. This colorless liquid is a building block in organic synthesis. It is an α,β-unsaturated aldehyde related to the better-known crotonaldehyde. The European rabbit, Ory ...



Momordol or 1-hydroxy-1.2-dimethyl-2--3-ethyl-cyclohex-5-en-4-one is a chemical compound with formula C 26 H 48 O 5, found in the fresh fruit of the bitter melon. The compound is an oily liquid, soluble in ethyl acetate and methanol but not in pu ...



3-Penten-2-one is an organic compound with the formula CH 3 CCH=CHCH 3. It exists as E and Z stereoisomers. The compound is classified as an α,β-unsaturated ketone. It is a colorless volatile liquid with fruity to pungent odor.


Alpha-Phenylcinnamic acid

α-Phenylcinnamic acid is a phenylpropanoid, or, more specifically, a derivative of cinnamic acid. It has the formula C 15 H 12 O 2 and appears as an off-white crystalline solid.



The quinones are a class of organic compounds that are formally "derived from aromatic compounds by conversion of an even number of –CH= groups into –C– groups with any necessary rearrangement of double bonds", resulting in "a fully conjugated cy ...














Alpha-hydroxy ketones


Beta-hydroxy ketones


Argentinian biddy-biddy

Acaena pinnatifida is often discussed as comprising several varieties. These include: Acaeana pinnatifida var. californica which is found in coastal scrub areas in California. It is a perennial herb that is native to California and is endemic lim ...









Pyrrocoma apargioides is a species of flowering plant in the aster family known by the common name alpineflames. It is native to the western United States from the Sierra Nevada of California east to Utah, where it grows in the forests and meadow ...



Mannose, packaged as the nutritional supplement "d-mannose", is a sugar monomer of the aldohexose series of carbohydrates. It is a C-2 epimer of glucose. Mannose is important in human metabolism, especially in the glycosylation of certain protein ...


Acetone cyanohydrin

Acetone cyanohydrin is an organic compound used in the production of methyl methacrylate, the monomer of the transparent plastic polymethyl methacrylate, also known as acrylic. It liberates hydrogen cyanide easily, so it is used as a source of su ...



Glycolonitrile, also called hydroxyacetonitrile or formaldehyde cyanohydrin, is the organic compound with the formula HOCH 2 CN. It is the simplest cyanohydrin and it is derived from formaldehyde. It is a colourless liquid that dissolves in water ...



Lactonitrile is a chemical compound used as a solvent and as an intermediate in the industrial production of ethyl lactate and lactic acid. It is the cyanohydrin derived from acetaldehyde.



In organic chemistry, mandelonitrile is the nitrile of mandelic acid, or the cyanohydrin derivative of benzaldehyde. Small amounts of mandelonitrile occur in the pits of some fruits.



Pentabromopseudilin, the first reported marine microbial antibiotic, is a bioactive natural product that contains a highly halogenated 2-arrylpyrrole moiety. Pentabromopseudilin is a unique hybrid bromophenol-bromopyrrole compound that is made up ...

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