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2. Histidine - Wikipedia

   en.wikipedia.org/wiki/Histidine

   Histidine ball and stick model spinning. Histidine (symbol His or H) [2] is an essential amino acid that is used in the biosynthesis of proteins.It contains an α-amino group (which is in the protonated –NH 3 + form under biological conditions), a carboxylic acid group (which is in the deprotonated –COO − form under biological conditions), and an imidazole side chain (which is partially ...

3. Histidine (data page) - Wikipedia

   en.wikipedia.org/wiki/Histidine_(data_page)

   Chemical formula: C 6 H 9 N 3 O 2 Molar mass: 155.16 g·mol −1 Systematic name: 2-amino-3-(3H-imidazol-4-yl)propanoic acid Abbreviations: H, His Synonyms: Imidazole alanine ({S/D})-α-amino-1H-imidazole-4-propanoic acid

4. Carnosine - Wikipedia

   en.wikipedia.org/wiki/Carnosine

   Carnosine (beta-alanyl-L-histidine) is a dipeptide molecule, made up of the amino acids beta-alanine and histidine. It is highly concentrated in muscle and brain tissues. [citation needed] Carnosine was discovered by Russian chemist Vladimir Gulevich. [1] Carnosine is naturally produced by the body in the liver [2] from beta-alanine and histidine.

5. Urocanic acid - Wikipedia

   en.wikipedia.org/wiki/Urocanic_acid

   Melting point: 225 °C (437 °F; 498 K) ... Urocanic acid (formally trans-Urocanic acid) is an intermediate in the catabolism of L-histidine. The cis-urocanic acid ...

6. Ergothioneine - Wikipedia

   en.wikipedia.org/wiki/Ergothioneine

   Ergothioneine is a naturally occurring amino acid and is a thiourea derivative of histidine, containing a sulfur atom on the imidazole ring. [1] This compound occurs in relatively few organisms, notably actinomycetota, cyanobacteria, and certain fungi.

7. Histamine - Wikipedia

   en.wikipedia.org/wiki/Histamine

   Melting point: 83.5 °C (182.3 °F; 356.6 K) Boiling point: ... Histamine is derived from the decarboxylation of the amino acid histidine, ...

8. The best hiking shoes of 2025, according to hiking experts - AOL

   www.aol.com/lifestyle/best-hiking-shoes...

   Higher price point; Stiffer construction; $265 at Backcountry (Men's) Explore More Buying Options. $265 at Backcountry (Women's) How we picked the best hiking shoes.

9. L-histidine - Wikipedia

   en.wikipedia.org/?title=L-histidine&redirect=no

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