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xanthin    
n. 黄色色素

黄色色素

Xanthin \Xan"thin\, n. [Gr. xanqo`s yellow.]
1. same as {xanthine}.
[1913 Webster]

2. (Chem.) A yellow insoluble coloring matter extracted from
yellow flowers; specifically, the coloring matter of
madder. [Formerly written also {xanthein}.]
[1913 Webster]

3. (Chem.) One of the gaseous or volatile decomposition
products of the xanthates, and probably identical with
carbon disulphide. [Obs.]
[1913 Webster] Xanthine


Xanthine \Xan"thine\, n. Also Xanthin \Xan"thin\ . [Gr. xanqo`s
yellow.] (Physiol. Chem.)
A type of purine obtainable as a white microcrystalline
powder, {C5H4O2N4}, present in muscle tissue, in the liver,
spleen, pancreas, and other organs, and also in urine (in
small quantities) and some urinary calculi, and in the juices
of certain plants; -- so called because it leaves a yellow
residue when evaporated to dryness with nitric acid. It is
also present in guano. Xanthine is closely related to uric
acid.
[Webster 1913 Suppl.]


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  • Xanthine - Wikipedia
    Derivatives of xanthine (known collectively as xanthines) are a group of alkaloids commonly used for their effects as mild stimulants and as bronchodilators, notably in the treatment of asthma or influenza symptoms [2]
  • Astaxanthin: Health Benefits, Uses, Risks and Side Effects
    Antioxidants such as astaxanthin may help your body get rid of free radicals And the compound may lower inflammation, too The health benefits of astaxanthin may include: Better brain health
  • Astaxanthin: 5 Benefits, Uses, Side Effects, and More - Health
    Taking astaxanthin might support dry eye symptoms by repairing eye cells and improving tear film stability Astaxanthin may improve skin health by reducing wrinkles, enhancing elasticity, and
  • XANTHINE Definition Meaning - Merriam-Webster
    The meaning of XANTHINE is a feebly basic compound C5H4N4O2 that occurs especially in animal or plant tissue, is derived from guanine and hypoxanthine, and yields uric acid on oxidation; also : any of various derivatives of xanthine (such as methylxanthine)
  • Xanthines: Sources, Effects, and Therapeutic Uses
    Xanthines are a group of alkaloids that share a similar chemical structure, derived from the purine base xanthine They are characterized by a purine ring The most recognized members of this family are caffeine, theophylline, and theobromine They are naturally produced by plants
  • Xanthine Derivatives: Drug Class, Uses, Side Effects, Drug Names - RxList
    Learn about how they work, usages, side effects, and a list of drugs
  • Xanthine: Explore Its Role in Energy and Metabolic Function
    Gout, chronic inflammation, and cardiovascular diseases are closely linked to the abnormal regulation of xanthine and the enzyme xanthine oxidase Understanding xanthine's physiological and pathological roles is fundamental to developing advanced therapeutic approaches
  • Xanthine | C5H4N4O2 | CID 1188 - PubChem
    It is a tautomer of a 7H-xanthine A purine base found in most body tissues and fluids, certain plants, and some urinary calculi It is an intermediate in the degradation of adenosine monophosphate to uric acid, being formed by oxidation of hypoxanthine
  • Xanthine - an overview | ScienceDirect Topics
    Xanthines are a group of alkaloids commonly used for their effects as mild stimulants and as bronchodilators, notably in the treatment of asthma symptoms Therefore, the detection of these compounds is important, and it has been performed also using electrochemical biosensors





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