Dicarboxylic acids

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racemic mixture of tartaric acid

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Monatin, commonly known as arruva, is a naturally occurring, high intensity sweetener isolated from the plant Sclerochiton ilicifolius, found in the Transvaal region of South Africa. Monatin contains no carbohydrate or sugar, and nearly no food energy, unlike sucrose or other nutritive sweeteners.

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group of isomers

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Bacillithiol (BSH or Cys-GlcN-mal) is a thiol compound found in Bacillus species. It is likely involved in maintaining cellular redox balance and plays a role in microbial resistance to the antibiotic fosfomycin.

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Clinofibrate (INN; trade name Lipoclin) is pharmaceutical drug of the fibrate class that is used for managing hyperlipidemia and associated conditions. It is sold and marketed in Japan.

Octopine is a derivative of the amino acids arginine and alanine. It was the first member of the class of chemical compounds known as opines to be discovered. Octopine gets its name from Octopus octopodia from which it was first isolated in 1927.

Meglutol (INN, also known as 3-hydroxy-3-methylglutaric acid, β-hydroxy-β-methylglutaric acid, and dicrotalic acid) is a hypolipidemic agent.

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Indicaxanthin is a type of betaxanthin, a plant pigment present in beets, in Mirabilis jalapa flowers, in cacti such as prickly pears (Opuntia sp.) or the red dragonfruit (Hylocereus costaricensis). It is a powerful antioxidant.

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Trichotomine is a bright blue pigment found in the berries of the plant Clerodendrum trichotomum, which is native to China and Japan. It has a novel chromophore structure which differs from previously studied plant pigments. The amount of pigment in the berries increases as they become ripe.

Enalaprilat is the active metabolite of enalapril. It is the first dicarboxylate-containing ACE inhibitor and was developed partly to overcome these limitations of captopril. The thiol functional group of captopril was replaced with a carboxylic acid group, but additional modifications were required to achieve a potency similar to captopril.

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EDDHA or 'ethylenediamine-N'','-bis(2-hydroxyphenylacetic acid) is a chelating agent. Like EDTA, it binds metal ions as a hexadentate ligand, using two amines, two phenolate centers, and two carboxylates as the six binding sites. The complexes are typically anionic. The ligand itself is a white, water-soluble powder. Both the free ligand and its tetraanionic chelating agent are abbreviated EDDHA. In contrast to EDDHA, most related aminopolycarboxylic acid chelating agents feature tertiary amines and few have phenolate groups.

'''N-Oxalylglycine''' is the organic compound with the formula HO2CC(O)NHCH2CO2H. This colourless solid is used as an inhibitor of α-ketoglutarate-dependent enzymes. It is isosteric with α-Ketoglutaric acid. Such enzymes are pervasive and, for example, are required for the synthesis of 4-hydroxyproline.

6-Carboxyfluorescein (6-FAM) is a fluorescent dye with an absorption wavelength of 495 nm and an emission wavelength of 517 nm. A carboxyfluorescein molecule is a fluorescein molecule with a carboxyl group added. They are commonly used as a tracer agents. It is used in the sequencing of nucleic acids and in the labeling of nucleotides.

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group of steroisomers

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group of stereoisomers

Hawkinsin (also known as 2-cystenyl-1,4-dihydroxycyclohexenylacetate) is an amino acid, which is formed after detoxification of a reactive tyrosine metabolite (quinol acetate) by glutathione. Hawkinsin is ninhydrin positive (a common test to detect amino acids and proteins with a free -NH2 group).

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Lepidolide is a chemical compound with formula — specifically, a terpenoid with the cucurbitane skeleton — isolated from the fruiting bodies of the mushroom Russula lepida (23 mg/7 kg). It is a pale yellow oil, soluble in chloroform.

Endothall (3,6-endoxohexahydrophthalic acid) is used as an herbicide for terrestrial and aquatic plants. It is used as an aquatic herbicide for submerged aquatic plants and algae in lakes, ponds and irrigation canals. It is used as a desiccant on potatoes, hops, cotton, clover and alfalfa. It is used as a biocide to control mollusks and algae in cooling towers.

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