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1. pubchem.ncbi.nlm.nih.gov › compound › 1_3_7-Tri1,3,7-Trimethylxanthine, TMS | C8H12N4O2 | CID 427849 - PubChem

   pubchem.ncbi.nlm.nih.gov › compound › 1_3_7-Tri

   1,3,7-Trimethylxanthine, TMS | C8H12N4O2 | CID 427849 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

2. www.thoughtco.com › chemistry-of-caffeine-608500What Is Caffeine and How Does It Work? - ThoughtCo

   www.thoughtco.com › chemistry-of-caffeine-608500

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   • Author: Anne Marie Helmenstine, Ph.D.

   • The molecule was first isolated by the German chemist Friedrich Ferdinand Runge in 1819.
   • In plants, caffeine acts as a natural pesticide. It paralyzes and kills insects that attempt to feed on the plants. Caffeine also limits germination of seeds near the plant that could grow to compete for resources.
   • When purified, caffeine is an intensely bitter white crystalline powder. It is added to colas and other soft drinks to impart a pleasing bitter note.
   • Caffeine is also an addictive stimulant. In humans, it stimulates the central nervous system, heart rate, and respiration, has psychotropic (mood altering) properties, and acts as a mild diuretic.

3. www.chemistryexplained.com › Bo-Ce › CaffeineCaffeine - Chemistry Encyclopedia - structure, reaction ...

   www.chemistryexplained.com › Bo-Ce › Caffeine

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   Caffeine belongs to the family of heterocyclic compounds known as purines. It has the systematic name 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione; it is also known as 1,3,7-trimethylxanthine, and 1,3,7-trimethyl-2,6-dioxopurine.

4. webbook.nist.gov › cgi › cbook1,3,7-Trimethylxanthine, TMS - NIST Chemistry WebBook

   webbook.nist.gov › cgi › cbook

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   1,3,7-Trimethylxanthine, TMS. Formula: C 8 H 12 N 4 O 2; Molecular weight: 196.2065

5. www.sciencedirect.com › trimethylxanthineTrimethylxanthine - an overview | ScienceDirect Topics

   www.sciencedirect.com › trimethylxanthine

   Both NdmA and NdmB couple with NdmD for electron transfer from NADH. 7-Methylxanthine is N7-demethylated to xanthine by the NdmCDE protein complex. Each reaction requires NADH and oxygen, with the methyl groups removed as formaldehyde.

6. www.sciencedirect.com › topics › neuroscienceParaxanthine - an overview | ScienceDirect Topics

   www.sciencedirect.com › topics › neuroscience

   Paraxanthine is a primary metabolite of caffeine formed through cytochrome P450 1A2 N-demethylation in the liver. It accounts for the majority of caffeine metabolism in humans and is excreted in the urine along with other metabolites. You might find these chapters and articles relevant to this topic.

7. People also ask

   What is a common name for Trimethylxanthine?

   • She has taught science courses at the high school, college, and graduate levels. Caffeine (C 8 H 10 N 4 O 2) is the common name for trimethylxanthine (systematic name is 1,3,7-trimethylxanthine or 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione). The chemical is also known as coffeine, theine, mateine, guaranine, or methyltheobromine.

   What Is Caffeine and How Does It Work? - ThoughtCo

   www.thoughtco.com/chemistry-of-caffeine-608500

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   How do NDMA & NDMB bind to xanthine?

   • Both NdmA and NdmB couple with NdmD for electron transfer from NADH. 7-Methylxanthine is N7-demethylated to xanthine by the NdmCDE protein complex. Each reaction requires NADH and oxygen, with the methyl groups removed as formaldehyde.

   Trimethylxanthine - an overview | ScienceDirect Topics

   www.sciencedirect.com/topics/chemistry/trimethylxanthine

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   Is paraxanthine a metabolite?

   • It is also important to mention that paraxanthine is the major metabolite in rodents, but the levels of theophylline are also high (Bonati et al., 1984–1985; Fredholm et al., 1999). Of note, trimethyl derivatives correspond to 40% of the caffeine metabolites in the rat, compared to 6% in humans (Arnaud, 1985) (Fig. 1).

   Paraxanthine - an overview | ScienceDirect Topics

   www.sciencedirect.com/topics/neuroscience/paraxanthine

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8. www.sciencedirect.com › topics › neuroscienceCaffeine - an overview | ScienceDirect Topics

   www.sciencedirect.com › topics › neuroscience

   Caffeine is an alkaloid chemically known as 1,3,7-trimethylxanthine. It contains two fused rings (Fig. 48.2) that are related to purines (Amaresh et al., 2011). Caffeine is found in many natural and processed products.