A practical reference on creatinine: what it is, how it behaves, what the literature reports, and where the honest uncertainties sit.
This page was last updated on 2026-02-18 and is reviewed periodically as new material appears.
Solid creatine monohydrate is relatively stable when kept dry and sealed, but heat and moisture accelerate its conversion to creatinine. This degradation involves intramolecular cyclization, a process that removes water and forms a less useful compound for phosphocreatine metabolism. Powder stored under cool, dry conditions can remain within specification for extended periods, though exact shelf life depends on packaging, humidity, and initial purity. Aqueous solutions degrade faster than dry powder, with pH and temperature influencing the rate. Because degradation is gradual, analytical testing is used to confirm potency at manufacture and during stability studies.
Quality control for creatine monohydrate typically combines identity, assay, and impurity tests. High-performance liquid chromatography with ultraviolet detection is common for separating creatine from creatinine and related substances. Nuclear magnetic resonance and infrared spectroscopy can confirm molecular structure, while titration may assess acid-base content. Moisture content, heavy metals, residual solvents, and microbial limits are checked according to applicable standards. These tests help distinguish compliant material from powders that have degraded, been diluted, or contain manufacturing residues.
Creatine monohydrate is the hydrated form of creatine, a nitrogen-containing organic acid involved in cellular energy transfer. Its molecular formula is C4H11N3O3, and it consists of creatine plus one water molecule in the crystal lattice. The anhydrous base, creatine, has the formula C4H9N3O2. The compound appears as a white, odorless, crystalline powder and is classified as a guanidine derivative. It is distinct from creatinine, a breakdown product measured in clinical chemistry.
In animals, creatine is synthesized mainly in liver, kidney, and pancreas from arginine, glycine, and methionine. The first committed step transfers a guanidino group from arginine to glycine, forming guanidinoacetate. Subsequent methylation by S-adenosylmethionine yields creatine. Dietary sources include meat and fish; endogenous synthesis supplies part of the body pool. Most creatine is stored in skeletal muscle, where it is converted to phosphocreatine and participates in rapid regeneration of adenosine triphosphate during short, intense activity.
| Property | Value | Notes |
|---|---|---|
| Typical storage temperature | 15–25 °C | Cool, dry, sealed |
| Relative humidity | Below 60% | Moisture promotes caking and degradation |
| Degradation product | Creatinine | Forms by cyclization, especially in solution |
| Assay method | HPLC with UV detection | Often paired with identity tests |
| Aqueous stability | Hours to days at room temperature | Depends on pH, temperature, concentration |
Analytical laboratories commonly identify creatine monohydrate by high-performance liquid chromatography with ultraviolet detection, often after dissolving the sample in water or dilute acid. Ion-exchange or reversed-phase columns separate creatine from creatinine and related guanidino compounds. Nitrogen content can be checked by Kjeldahl or combustion methods, while moisture is measured by Karl Fischer titration or loss on drying. These techniques give complementary views: chromatographic purity addresses related substances, whereas moisture and elemental data confirm hydrate stoichiometry. No single test defines quality by itself; a combination is used in specifications.
Storage recommendations generally emphasize a cool, dry place away from direct sunlight and strong oxidizers. Sealed containers limit humidity exchange, which helps prevent clumping and gradual conversion to creatinine. Long-term stability studies usually monitor appearance, moisture, and purity at intervals under defined temperature and humidity conditions. Accelerated tests at elevated temperature can reveal degradation pathways, but they do not perfectly predict room-temperature shelf life. Questions remain about how much creatinine formation is acceptable in different product categories and how packaging choices affect that rate over time.
As a supplement, creatine monohydrate is studied for its effects on muscle performance and recovery. The compound is often described as an ergogenic aid, meaning it may support physical work capacity. Research typically compares it with placebo or other forms, such as citrate or nitrate, under controlled conditions. Questions remain about the optimal dose and long-term effects in different populations, and findings are not uniform across all studies. The monohydrate form remains the most extensively tested.
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.
2010: Law concerning "violence against women," within couples, with consequences for children, creating the offense of psychological domestic violence. 2011: Council of Europe Convention on preventing and combating violence against women and domestic violence. 2013: The ban on women wearing trousers is officially repealed. Wearing trousers had become common from the 1960s onward. 2014: Law for real equality between women and men. 2017: Starting January 1, 2017, a 40% quota on boards of directors or supervisory boards must be respected (for companies with a minimum number of employees or board members).
Meat from sheep features prominently in the cuisines of several Mediterranean cultures including Greece, Croatia, Turkey, North Africa, Jordan, and the Middle East, as well as in the cuisines of Iran and Afghanistan. In Greece, for example, it is an integral component of many meals and of religious feasts such as Easter, like avgolemono and magiritsa. It is also popular in the Basque culture, both in the Basque country of Europe and in shepherding parts of the Western United States, where shepherds of Basque descent have been active since the 1850s. In the United States, the Navajo have incorporated mutton and lamb into their traditional cuisine since the introduction of sheep by Spanish explorers and settlers in the 17th century, replacing wild turkey and venison and creating a pastoral culture. In Northern Europe, mutton and lamb feature in many traditional dishes, including those of Iceland, Norway and the United Kingdom. Mutton is popular in Australia. Lamb and mutton are very popular in Central Asia and in certain parts of China, where other red meats may be eschewed for religious or economic reasons. Barbecued mutton is also a specialty in some areas of the United States, chiefly Owensboro, Kentucky, and Canada. Meat from sheep is generally consumed far less in the US than in many European, Central American and Asian cuisines. Average per-capita consumption of lamb in the United States is only 400 grams (14 oz) per year. In Australia, the leg of lamb roast is considered to be the national dish.
Plasma was already well known when described by William Harvey in de Motu Cordis in 1628, but knowledge of it probably dates as far back as Vesalius (1514–1564). The discovery of fibrinogen by William Henson, c. 1770, made it easier to study plasma, as ordinarily, upon coming in contact with a foreign surface – something other than the vascular endothelium – clotting factors become activated and clotting proceeds rapidly, trapping RBCs etc. in the plasma and preventing separation of plasma from the blood. Adding citrate and other anticoagulants is a relatively recent advance. Upon the formation of a clot, the remaining clear fluid (if any) is blood serum, which is essentially plasma without the clotting factors The use of blood plasma as a substitute for whole blood and for transfusion purposes was proposed in March 1918, in the correspondence columns of the British Medical Journal, by Gordon R. Ward. "Dried plasmas" in powder or strips of material format were developed and first used in World War II. Prior to the United States' involvement in the war, liquid plasma and whole blood were used.
Sources: en.wikipedia.org
Thursday of the Dead is a feast day shared by Christians and Druze in the Lebanon, it falls sometime between the Easter Sundays of the Catholic and Eastern Orthodox Christian traditions. It is a day on which the souls of the dead are honoured. Particularly popular among women in the region, this occasion highlights the shared cultural heritage between Arab Christians and Druze in Lebanon. Additionally, the baptism of children in accordance with Christian customs often took place within prominent Lebanese Druze families. Common surnames among Lebanese Christians and Druze include Abi-Lamma, Assaf, Atrash, Awar, Ballout, Barakat, Daou, Dergham, Faour, Farraj, Ghannam, Halabi, Harb, Hatoum, Hilal, Ibrahim, Jaber, Kadamani, Kadi, Malaeb, Nammour, Safadi, Saker, Saleh, Serhal, Shaya, Timani, Yaghi, and others.
== Beliefs == Herbalists tend to use extracts from parts of plants, such as the roots or leaves, believing that plants are subject to environmental pressures and therefore develop resistance to threats such as radiation, reactive oxygen species and microbial attack to survive, providing defensive phytochemicals of use in herbalism.
After defeating Yokozuna on the SummerSlam Free For All pre-show, Austin would speak about Bret Hart, challenging him constantly and taunting him relentlessly throughout August and September before Hart finally returned on Raw after a six-month hiatus on October 21 to challenge Austin to a match at Survivor Series, which he accepted. This would mark the start of the long Austin-Hart rivalry.
== Dalgona == Dalgona is a traditional Korean hard candy made with sugar and baking soda. But for Dalgona coffee, instead of putting hard formation candy into the coffee, make a whipped cream foam with Americano and sugar. Then put the Dalgona cream on top of the milk of your choice. Dalgona coffee was newly invented during the COVID-19 pandemic. The reason Dalgona coffee got viral during that period was due to the pandemic; people were in a situation where they had to stay home for safety. The regulation of the pandemic was when the COVID-19 test results came out to be positive, people had to quarantine for 14 days. With this background situation, people kept searching for things that they could stay active and productive during the time they stay home. The process of making Dalgona coffee was perfect for people. To make Dalgona whip cream, at least 400 times or more stirring process is needed. It's hard to make, but it was a creative and innovative taste of coffee at that time because people could make 'coffee shop' coffee at home. People started to post themselves making Dalgona coffee and this became some sort of trend 'Dalgona coffee challenge' and it spread through social media such as Google, Instagram, TikTok and YouTube. It went viral not only in Korea but also it went widespread all over the world included not only the Asia but also Central and South America. Even after the pandemic ended, lots of coffee shops in Korea launched Dalgona coffee as one of the new menu items. One of the popular coffee chain, Ediya coffee launched 'Dalgona latte' in May 2020.
Sources: en.wikipedia.org
Most studies support a link between adult criminality and testosterone. Nearly all studies of juvenile delinquency and testosterone are not significant. Most studies have found testosterone to be associated with behaviors or personality traits linked with antisocial behavior and alcoholism. Many studies have been undertaken on the relationship between more general aggressive behavior, and feelings, and testosterone. About half of studies have found a relationship and about half, no relationship. Studies have found that testosterone facilitates aggression by modulating vasopressin receptors in the hypothalamus. There are two theories on the role of testosterone in aggression and competition. The first is the challenge hypothesis which states that testosterone would increase during puberty, thus facilitating reproductive and competitive behavior which would include aggression. It is therefore the challenge of competition among males that facilitates aggression and violence. Studies conducted have found direct correlation between testosterone and dominance, especially among the most violent criminals in prison who had the highest testosterone. The same research found fathers (outside competitive environments) had the lowest testosterone levels compared to other males. The second theory is similar and known as "evolutionary neuroandrogenic (ENA) theory of male aggression". Testosterone and other androgens have evolved to motivate men to pursue competition, even when doing so leads to risk.
Modimelanotide (INN; development code AP-214, ABT-719, and ZP-1480) is a melanocortinergic peptide drug derived from α-melanocyte-stimulating hormone (α-MSH) which was under development by, at different times, Action Pharma, Abbott Laboratories, AbbVie, and Zealand for the treatment of acute kidney injury. It acts as a non-selective melanocortin receptor agonist, with IC50 values of 2.9 nM, 1.9 nM, 3.7 nM, and 110 nM at the MC1, MC3, MC4, and MC5 receptors. Modimelanotide failed clinical trials for acute kidney injury despite showing efficacy in animal models, and development was not further pursued.
==== Stability ==== According to Sassen (1997) the role of hydrates at chemosynthetic communities has been greatly underestimated. The biological alteration of frozen gas hydrates was first discovered during the MMS study entitled "Stability and Change in Gulf of Mexico Chemosynthetic Communities". It is hypothesized that the dynamics of hydrate alteration could play a major role as a mechanism for regulation of the release of hydrocarbon gases to fuel biogeochemical processes and could also play a substantial role in community stability. Recorded bottom-water temperature excursions of several degrees in some areas such as the Bush Hill site (4–5 °C at 500-metre (1,600-foot) depth) are believed to result in dissociation of hydrates, resulting in an increase in gas fluxes (MacDonald et al., 1994). Although not as destructive as the volcanism at vent sites of the mid-ocean ridges, the dynamics of shallow hydrate formation and movement will clearly affect sessile animals that form part of the seepage barrier. There is potential of a catastrophic event where an entire layer of shallow hydrate could break free of the bottom and considerably affect local communities of chemosynthetic fauna. At deeper depths (>1,000 metres (3,300 feet)), the bottom-water temperature is colder (by approximately 3 °C) and undergoes less fluctuation. The formation of more stable and probably-deeper hydrates influences the flux of light hydrocarbon gases to the sediment surface, thus influencing the surface morphology and characteristics of chemosynthetic communities.
=== Detroit riots === The Detroit Race Riot of 1943 broke out in Detroit in June of that year and lasted three days before Federal troops regained control. The rioting between blacks and whites began on Belle Isle, Detroit's largest park, on June 20, 1943, and continued until June 22, killing 34, wounding 433, and destroying property valued at $2 million. This was one of Detroit's worst riots, with the buildup of racial tension and animosity between blacks and whites culminating in brawls that broke out on the bridge connecting Belle Isle to southeast Detroit. Fierce attacks were launched on each other's property, including the looting of both black and white-owned stores and white rampages throughout Paradise Valley, a segregated section of Detroit that was predominantly black and very poorly maintained. As racial tensions escalated between blacks and whites, the gravity of the consequences of these tensions also escalated. Violence and riots were common, especially regarding housing situations, as blacks began encroaching on predominantly white neighborhoods. In 1955, the black Wilson family bought a home in a white neighborhood, and soon faced vandalism and property destruction. Angry demands and threats were made at the Wilson family, harassing them to move out. Again, the Detroit police officers rarely did anything to help, choosing instead to sit in their cars nearby despite the constant harassment of the Wilsons. The summer of 1967 saw five days of riots in Detroit. Forty-three people died, 33 were black, and ten were white.
Internal medicine, also known as general medicine in Commonwealth nations, is a specialty for medical doctors focused on the prevention, diagnosis, and treatment of diseases in adults. Internal refers to the "treatment of diseases of the internal organs". Practitioners of internal medicine are referred to as internists in North America and physicians in Britain and most Commonwealth nations. Internists possess specialized skills in managing patients with undifferentiated or multi-system disease processes. They provide care to both hospitalized (inpatient) and ambulatory (outpatient) patients, as their patients are frequently seriously ill or require extensive medical tests. Internists often have subspecialty interests in diseases affecting particular organs or organ systems, and often contribute significantly to teaching and research. The certification process and available subspecialties may vary across different countries. Internists are qualified doctors who have undergone postgraduate training in internal medicine, and should not be confused with "interns", a term commonly used for a doctor who has obtained a medical degree but does not yet have a license to practice medicine unsupervised. There is also sometimes confusion between internal medicine and family medicine, with people mistakenly considering them equivalent. Internal medicine is also recognized as a specialty within clinical pharmacy and veterinary medicine.
Sources: en.wikipedia.org
Keep it in a sealed container in a cool, dry place away from direct heat and moisture. Dry powder is more stable than prepared solutions.
It can cyclize into creatinine, particularly in water or under heat. Creatinine does not support phosphocreatine energy buffering in the same way.
Laboratories commonly use chromatographic methods such as HPLC, along with spectroscopy and titration, to confirm identity and quantity. Moisture, elemental impurities, and microbial limits may also be tested.
Creatine is the base compound, while creatine monohydrate includes one water molecule per creatine molecule in its crystal structure. The monohydrate form is common in supplements and analytical standards. The body uses creatine itself after the water is removed or dissociated.