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Chemical Identity And Dietary Role — Explained

By Editorial Desk · published 2026-01-05 · last reviewed 2026-01-19 · News

The short version of creatine fits in a sentence. The long version — which is the one that helps — is below.

This page was last updated on 2026-01-19 and is reviewed periodically as new material appears.

Chemical Identity and Dietary Role

Creatine monohydrate is a crystalline compound formed from creatine and one molecule of water. Its systematic name is N-(aminoiminomethyl)-N-methylglycine monohydrate, and it appears as a white, odorless powder with limited solubility in water. The monohydrate is the most common solid form used in research and commercial products because it is stable under dry conditions. The anhydrous form lacks the water of crystallization and differs slightly in molar mass. Both forms participate in the same biochemical reactions once dissolved.

In the body, creatine is synthesized from the amino acids arginine, glycine, and methionine, primarily in the liver and kidneys. It is transported to muscle and other tissues, where it is phosphorylated to phosphocreatine by creatine kinase. This phosphagen system provides a rapid source of adenosine triphosphate during short, intense contractions. Dietary creatine comes mainly from meat and fish, and the body's total pool is influenced by both synthesis and intake.

Background and Chemical Identity

Creatine monohydrate is a crystalline compound formed from creatine and one molecule of water. Creatine itself is a nitrogen-containing organic acid that occurs in vertebrate muscle and other tissues. The monohydrate designation refers to the water included in the crystal lattice, not to water added during manufacturing. Its chemical formula is commonly written as C4H9N3O2·H2O. The solid is typically a white, odorless powder with low solubility in water at room temperature. It is one of several creatine forms described in scientific and commercial literature.

The compound was identified in the nineteenth century after chemists isolated a nitrogenous substance from meat extracts. Later work established its role in muscle energy metabolism and its conversion to phosphocreatine. Chemical synthesis of creatine followed, and industrial production made the monohydrate widely available as a purified powder. Interest expanded in the late twentieth century when researchers began studying creatine supplementation and muscle physiology. Historical accounts sometimes differ on exact dates and attributions, but the broad sequence from tissue extracts to synthetic production is well documented.

Creatine-monohydrate at a glance

PropertyValueNotes
Chemical formulaC4H9N3O2·H2OMonohydrate form; anhydrous is C4H9N3O2
Molar mass149.15 g/molFor the monohydrate
AppearanceWhite crystalline powderOdorless, slightly bitter taste
Solubility in water~13 g/L at 25 °CPoorly soluble; increases with temperature
CAS Registry Number6020-87-7For creatine monohydrate

Supporting material

f. antarctica (Vain.) Hue (1915) is now Polycauliona antarctica f. ectaneoides (Nyl.) Boistel (1903) is now Xanthoria ectaneoides f. ectaniza Boistel (1903) is now Rusavskia ectaniza f. polycarpa (Hoffm.) Arnold (1881) is now Polycauliona polycarpa subsp. calcicola (Oxner) Clauzade & Cl.Roux (1985) is now Xanthoria calcicola subsp. phlogina (Ach.) Sandst. (1912) is now Scythioria phlogina var. aureola (Ach.) Th.Fr. (1860) is now Xanthoria aureola var. australis Zahlbr. (1917) is now Jackelixia australis var. contortuplicata (Ach.) H.Olivier (1894) is now Xanthaptychia contortuplicata var. incavata (Stirt.) Js. Murray (1960) is now Dufourea incavata var. lobulata (Flörke) Rabenh. (1870) is now Seawardiella lobulata var. mandschurica Zahlbr. (1931) is now Zeroviella mandschurica var. rutilans (Ach.) Maheu & A.Gillet (1924) is now Xanthoria rutilans

He has guided around 30 scholars in their doctoral studies. When the Chemical Biology Society of India was formed in 2013, he became its founder president and holds the position. He is a former president of the West Bengal Academy of Science and Technology and is its incumbent vice president.

=== Middle Ages === After the fall of the Western Roman Empire, the town, along with the rest of the Italian peninsula, was conquered by the Heruli and the Ostrogoths, recaptured by the Romans, but then conquered again by the Lombards whose territory then fell into the hands of the Franks under Charlemagne (773). The Contea di Torino (countship) was founded in the 940s and was held by the Arduinic dynasty until 1050. After the marriage of Adelaide of Susa with Humbert Biancamano's son Otto, the family of the Counts of Savoy gained control. While the title of count was held by the Bishop as count of Turin (1092–1130 and 1136–1191) it was ruled as a prince-bishopric by the Bishops. In 1230–1235, it was a lordship under the Marquess of Montferrat, styled Lord of Turin. At the end of the 13th century, when it was annexed to the Duchy of Savoy, the city already had 20,000 inhabitants. Many of the gardens and palaces were built in the 15th century when the city was redesigned. The University of Turin was also founded during this period.

Sources: en.wikipedia.org

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Notes from published material

Tacticity describes the relative stereochemistry of chiral centers in neighboring structural units within a macromolecule. There are three types of tacticity: isotactic (all substituents on the same side), atactic (random placement of substituents), and syndiotactic (alternating placement of substituents).

Baiye, qianzhang, or gandoufu (百葉; 千張; 乾豆腐) is a very flat (about 2 mm thick) type of extra-firm tofu. It cannot be crumbled. The surface is filled with bulges arranged in a square grid from the muslin used to press it. It can be cut into long strings with a cross-section smaller than 2 mm × 2 mm and eaten in a way similar to gansi. It is also used to make:

=== Quartz fiber filter === Quartz fiber filter paper has a high resistance to chemicals, does not absorb NOx and SOx dioxides, is unaffected by humidity and is easily sterilized. Thus, it is mostly used for air pollution analysis.

Sources: en.wikipedia.org

Frequently asked questions

What is creatine monohydrate?

It is a compound made of creatine bound to one water molecule. It appears as a white crystalline powder and is the most common solid form of creatine used in research and supplements.

How does the body use creatine?

Creatine is converted to phosphocreatine in muscle, which helps regenerate adenosine triphosphate during brief, high-intensity activity. The body also obtains creatine from foods such as meat and fish.

Is creatine monohydrate different from creatine found in food?

The creatine molecule is the same whether from food or supplements, but the monohydrate form includes a water molecule in its crystal structure. Once dissolved, the monohydrate and food-derived creatine are chemically identical in the body.

What is creatine monohydrate?

It is a crystalline form of creatine that contains one water molecule per creatine molecule. The compound occurs naturally in muscle tissue and is also produced synthetically for research and consumer products. The monohydrate label describes the solid's hydration state.

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