ZAN-theen
XANTHINE is a purine base found in most body tissues and fluids, as well as in coffee, tea, and chocolate. It's a white crystalline compound that serves as a precursor to uric acid and is structurally related to caffeine and theobromine.
Yes. XANTHINE is in the Scrabble-style word list used by our tools and scores 18 points in Scrabble, 19 in Words With Friends and 18 in Wordfeud (base tile values, no board multipliers). Always check the dictionary your game uses (NWL, Collins or the WWF list) before playing.
| Letter | X | A | N | T | H | I | N | E | Total |
|---|---|---|---|---|---|---|---|---|---|
| Scrabble | 8 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 18 |
| Words With Friends | 8 | 1 | 2 | 1 | 3 | 1 | 2 | 1 | 19 |
| Wordfeud | 8 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 18 |
Xanthine stands at the intersection of biochemistry and everyday life, a purine base that most people consume daily without knowing its name. This crystalline compound, found in virtually all living organisms, plays crucial roles in metabolism, genetic coding, and the stimulating effects of the world's most popular beverages. From your morning coffee to prescribed medications, xanthine and its derivatives shape human experience in profound yet often unrecognized ways.
Chemically, xanthine (C₅H₄N₄O₂) belongs to the purine family, sharing structural similarities with adenine and guanine—two of the four bases that encode genetic information in DNA and RNA. Its molecular structure features a double-ring system characteristic of purines, with oxygen atoms at specific positions that distinguish it from other purine bases. This structure makes xanthine a key intermediate in purine metabolism, serving as a waystation in the breakdown of nucleic acids to uric acid.
In the human body, xanthine appears as part of the purine degradation pathway. When cells break down nucleic acids—whether from dietary sources or cellular turnover—the process ultimately produces xanthine as an intermediate compound. The enzyme xanthine oxidase then converts xanthine to uric acid, the final waste product excreted in urine. This pathway's importance becomes evident in conditions like gout, where excessive uric acid production or inadequate excretion leads to painful crystal deposits in joints.
The etymology of "xanthine" reveals the intersection of scientific observation and classical language that characterized 19th-century chemistry. The word derives from the Greek "xanthos" (ξανθός), meaning "yellow," combined with the chemical suffix "-ine," commonly used for alkaloids and organic bases. This naming reflects the yellowish residue that German chemist Leopold Gmelin observed when he first isolated the compound in 1817.
Anagrams: XANTHEIN
Hooks: no front hooks; back XANTHINES.
Words inside XANTHINE: 97 shorter words can be made from these letters – highest scoring: XANTHEINXANTHINHEXANNEXAXITEXENIAEXITNEXTNIXETAXIAXENIX. See all words from XANTHINE.