A practical reference on WADA prohibited list: what it is, how it behaves, what the literature reports, and where the honest uncertainties sit.
This page was last updated on 2026-08-01 and is reviewed periodically as new material appears.
Identity and purity are usually assessed with reversed-phase high-performance liquid chromatography and mass spectrometry. Reversed-phase HPLC separates the peptide from related impurities and can estimate purity by ultraviolet absorbance, while mass spectrometry confirms the molecular mass and detects modifications. Peptide mapping, amino acid analysis, and disulfide mapping may be used when the sequence or disulfide arrangement must be verified. Because AOD9604 contains cysteine residues, oxidation and disulfide isomers are possible quality concerns in synthetic batches.
Quality varies among research-grade suppliers, so certificates of analysis and independent testing are important for verification. A typical certificate reports purity by HPLC, identity by mass spectrometry, appearance, and sometimes residual solvents or water content. AOD9604 is often sold as a research chemical not intended for human consumption, and labels can be inaccurate. Common misconceptions include treating the peptide as a form of growth hormone, assuming supplement status, or expecting approved-drug quality from unregulated products.
In laboratory settings, AOD-9604 is commonly supplied as a lyophilized powder and stored cold to limit degradation. Reconstituted solutions are typically kept refrigerated or frozen, depending on the buffer and concentration, and protected from repeated freeze-thaw cycles. Stability can be influenced by pH, temperature, and the presence of proteases. Purity is usually assessed by high-performance liquid chromatography and mass spectrometry. These practices support reproducibility, but they do not imply safety or efficacy for any human use.
Regulatory status: AOD-9604 is not approved as a therapeutic drug in the United States, European Union, or other major markets. It is listed by the World Anti-Doping Agency as a prohibited substance in sport, specifically under growth hormone fragments. Many jurisdictions restrict its sale for human consumption. Products marketed online may not meet pharmaceutical quality standards. The legal status varies by country and often depends on whether the material is presented as a research chemical, supplement, or drug.
Detection and characterization of AOD-9604 in research and anti-doping settings typically rely on mass spectrometry coupled with liquid chromatography. These methods can identify the peptide by its mass and fragmentation pattern. Immunoassays may also be used in some screening contexts, but they can cross-react with related peptides. Because the molecule is small and may be present at low concentrations, sample preparation and method validation are important. Confirmatory analysis usually requires comparison with a certified reference standard.
| Property | Value | Notes |
|---|---|---|
| Appearance | White to off-white powder | Lyophilized form; visual inspection |
| Solubility | Soluble in water and aqueous buffers | Depends on pH, purity, and counterion |
| Typical storage | -20 °C or below, desiccated | Protect from light; avoid repeated freeze-thaw after reconstitution |
| Common analytical method | Reversed-phase HPLC and mass spectrometry | Purity by HPLC; identity and mass by LC-MS or MALDI-TOF |
| Common synonyms | hGH fragment 176–191; AOD-9604 | Names vary in research and product labeling |
Detection of AOD-9604 in biological samples relies on analytical techniques capable of distinguishing a small synthetic peptide from related endogenous sequences. Liquid chromatography coupled with tandem mass spectrometry is commonly used for confirmatory analysis. Sample preparation may involve immunoaffinity enrichment or solid-phase extraction to concentrate the peptide. Because the molecule is small and may be present at low concentrations, assay sensitivity and specificity are ongoing analytical challenges. Laboratories also validate methods against reference materials when available.
Regulatory interest in AOD-9604 increased after high-profile anti-doping cases involving peptide products. In some cases, the substance was supplied under alternative names or in compounded preparations, complicating traceability. Sports tribunals and anti-doping panels have discussed whether the peptide was explicitly banned at the time of use, leading to clarifications by the World Anti-Doping Agency. For consumers and researchers, the legal status can vary by jurisdiction, and products marketed as research chemicals may lack independent quality verification.
AOD-9604 is prohibited in sport by the World Anti-Doping Agency under the peptide hormone class. Its presence in a sample can be detected through mass spectrometry-based methods, although the exact assay depends on the laboratory. In research settings, material is often supplied as a lyophilized powder for reconstitution. Buyers and researchers should note that products labeled AOD-9604 may vary in purity and actual peptide content. Analytical certificates and independent testing are common ways to verify identity, but no global harmonized standard exists for all commercial lots.
AOD-9604 is a synthetic peptide whose sequence is modeled on the C-terminal region of human growth hormone. Published descriptions commonly place it as a modified fragment corresponding to hGH amino acids 176–191, with a tyrosine residue added or retained at the N-terminus to support detection and handling. It is not intact growth hormone and lacks the full receptor-binding architecture of the parent protein. The molecule was developed as a research candidate for metabolic studies rather than as a replacement for growth hormone therapy. Its identity is defined by its amino acid sequence rather than by any single commercial preparation.
=== United States === In the United States it is legal to purchase poppy seeds, but all other parts of the plant are considered Schedule II controlled substances under the federal Controlled Substances Act of 1970. Unwashed poppy seeds can potentially contain lethal concentrations of morphine but only in excessively large quantities (e.g. multiple pounds of seeds). The Opium Poppy Exclusion Act of 1942 bans growing the poppy in many cases but is generally not a problem for gardeners as the plant is widely grown for the flowers, and for seeds for replanting and cooking. For much of US history poppies were a significant cash crop, and the government encouraged farmers to grow more poppies for medicinal use during wars up to World War I. It is, however, manufacture of a schedule II substance to create a drink for the opium content, and the possession of it is illegal as well.
Urine Tears Perspiration Saliva Respiration Milk Faeces Bile Drugs are excreted from the kidney by glomerular filtration and by active tubular secretion following the same steps and mechanisms as the products of intermediate metabolism. Therefore, drugs that are filtered by the glomerulus are also subject to the process of passive tubular reabsorption. Glomerular filtration will only remove those drugs or metabolites that are not bound to proteins present in blood plasma (free fraction) and many other types of drugs (such as the organic acids) are actively secreted. In the proximal and distal convoluted tubules, non-ionised acids and weak bases are reabsorbed both actively and passively. Weak acids are excreted when the tubular fluid becomes too alkaline and this reduces passive reabsorption. The opposite occurs with weak bases. Poisoning treatments use this effect to increase elimination, by alkalizing the urine causing forced diuresis which promotes excretion of a weak acid, rather than it getting reabsorbed. As the acid is ionised, it cannot pass through the plasma membrane back into the blood stream and instead gets excreted with the urine. Acidifying the urine has the same effect for weakly basic drugs. On other occasions drugs combine with bile juices and enter the intestines. In the intestines the drug will join with the unabsorbed fraction of the administered dose and be eliminated with the faeces or it may undergo a new process of absorption to eventually be eliminated by the kidney.
Photodynamic/photothermal combination therapy involves the usage of a chemical compound or nanomaterial that, when irradiated at a certain wavelength, converts light energy into reactive oxygen species (ROS) and heat. This has shown to be highly effective in the treatment of skin infections, showing increased wound healing rates and a lower impact on human cell viability than photodynamic (PD) or photothermal (PT) therapies. The compounds involved often employ additional mechanisms of action or side effect reduction mechanisms, further increasing their efficacy. Phototherapies are minimally invasive, with the primary toxicity issues surrounding phototoxicity and the nonspecific ROS and heat mechanisms of action affecting healthy human cells (albeit in lower amounts than the target cells). In skin wound infections, multiple phototherapeutic approaches have observed increased rates of wound closure over nontreated controls. This is typically due to an upregulation of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor (HIF). Phototherapies are also active against both gram-positive and gram-negative bacteria, with photodynamic therapy having some exceptions. To apply this technique, a photosensitizer is localized to the wound or tumor site, either topically or intravenously. Once localized, the target area is exposed to a laser of a selected wavelength and intensity for a predetermined irradiation time.
=== Mahāyāna interpretations === Mahāyāna Buddhism, which sees dependent arising as closely connected with the doctrine of emptiness, strongly expresses that all phenomena and experiences are empty of independent identity. This is especially important for the madhyamaka school, one of the most influential traditions of Mahayana thought. The yogacara school meanwhile, understands dependent origination through its idealistic philosophy and sees dependent origination as the process that produces the illusory subject-object duality. One of the most important and widely cited sutras on dependent origination in the Indian Mahayana tradition was the Śālistamba Sūtra (Rice Seedling Sutra). This sutra introduced the well-known Mahayana simile of a rice seed and its sprout as a way to explain conditionality. It also contains the influential passage: "He who sees dependent arising sees the dharma. He who sees the dharma sees the Buddha." This sutra contains numerous passages which parallel the early Buddhist sources (such as MN 38) and outlines the classic 12 nidanas. It also contains some unique elements such as the figure of Maitreya, the idea of illusion (māyā) and the idea of the dharmaśarīra (dharma-body). Numerous commentaries were written on this sutra, some of which are attributed to Nāgārjuna (but this is questionable).
=== Clonidine suppression test === The reduction in circulating norepinephrine by clonidine was used in the past as an investigatory test for phaeochromocytoma, which is a catecholamine-synthesizing tumor, usually found in the adrenal medulla. In a clonidine suppression test, plasma catecholamine levels are measured before and 3 hours after a 0.3 mg oral test dose has been given to the patient. A positive test occurs if there is no decrease in plasma levels.
Sources: en.wikipedia.org
For infecting organisms to survive and repeat the infection cycle in other hosts, they (or their progeny) must leave an existing reservoir and cause infection elsewhere. Infection transmission can take place via many potential routes: Droplet contact, also known as the respiratory route, and the resultant infection can be termed airborne disease. If an infected person coughs or sneezes on another person the microorganisms, suspended in warm, moist droplets, may enter the body through the nose, mouth or eye surfaces. Fecal-oral transmission, wherein foodstuffs or water become contaminated (by people not washing their hands before preparing food, or untreated sewage being released into a drinking water supply) and the people who eat and drink them become infected. Common fecal-oral transmitted pathogens include Vibrio cholerae, Giardia species, rotaviruses, Entamoeba histolytica, Escherichia coli, and tape worms. Most of these pathogens cause gastroenteritis. Sexual transmission, with the result being called sexually transmitted infection. Oral transmission, diseases that are transmitted primarily by oral means may be caught through direct oral contact such as kissing, or by indirect contact such as by sharing a drinking glass or a cigarette. Transmission by direct contact, Some diseases that are transmissible by direct contact include athlete's foot, impetigo and warts. Vehicle transmission, transmission by an inanimate reservoir (food, water, soil). Vertical transmission, directly from the mother to an embryo, fetus or baby during pregnancy or childbirth.
A PAM250 is a commonly used scoring matrix for sequence comparison. Only the lower half of the matrix needs to be computed, since by their construction, PAM matrices are required to be symmetric. Each of the 20 amino acid are shown down the top and side of the matrix, with 3 additional ambiguous amino acids. The amino acids are most commonly shown listed alphabetically, or listed in groups. These groups are the characteristics shared among the amino acids.
South Africa The model remained in production in South Africa, as an entry-level model until 2003. It was also sold there as the "Midge", the "Sting", and as the "Ford Tonic". A locally designed pickup based on the Familia front end, called the Rustler was also produced, and sold as the "Ford Bantam". From 1991 to 1994 Samcor also produced and sold the 323 with the 2.0 L 16-valve DOHC FE engine from the Mazda 626 and badged it "200i". Along with the 2.0 L 16-valve DOHC engine there were upgrades to the suspension and braking system. Still, the 1.6-litre GT-Ae homologation car was more powerful. This South African built model was also sold in Australia between 1989 and 1991 with minor changes, the most noticeable one being the front indicators having a clear color rather than the normal amber. These models were labeled BF as opposed to the next generation's BG.
=== Ka–Ke === Henrik Kacser FRSE (1918–1995). British geneticist and biochemist at Edinburgh, founder of metabolic control analysis. Emil T. Kaiser (1938–1988). Hungarian-born American protein chemist at the University of Chicago, known for his work on enzyme modification. Member Natl. Acad. Sci. USA. Herman Kalckar (1908–1991). Danish biochemist at the New York Public Health Research Institute, who worked on cellular respiration, nucleotide metabolism and galactose metabolism. Member Natl. Acad. Sci. USA Nathan O. Kaplan (1917–1986) Enzymologist at UC San Diego, founding editor of Methods in Enzymology. Member Natl. Acad. Sci. USA Sir Bernard Katz FRS (1911–2003). German-British neuroscientist and biophysicist at University College London. Nobel Prize in Physiology or Medicine (1970) for work on nerve biochemistry and the pineal gland. Stuart Alan Kauffman (b. 1939). American theoretical biologist, expert on complex systems, now at the University of Pennsylvania. Fellow of the Royal Society of Canada. Douglas Kell (b. 1953). British biochemist at the University of Manchester, known for research on functional genomics, metabolomics and the yeast genome. John Kendrew FRS (1917–1997). British x-ray crystallographer at the European Molecular Biology Laboratory, Heidelberg, known for determining the crystal structure of myoglobin. Nobel Prize in Chemistry (1962). Sir Ernest Kennaway FRS (1881–1958), British pathologist at the Institute of Cancer Research, London, who carried out early work on carcinogenic effects of hydrocarbons. Eugene P.
Sources: en.wikipedia.org
Lyophilized AOD9604 is generally kept at -20 °C or colder, desiccated, and protected from light. Reconstituted solutions are usually refrigerated and handled to minimize repeated freeze-thaw cycles. These are general laboratory handling practices, not instructions for human use.
Mass spectrometry, such as LC-MS or MALDI-TOF, confirms the molecular mass and can reveal sequence-related impurities. Reversed-phase HPLC is used for purity, and peptide mapping or amino acid analysis can support sequence identity. No single method establishes every quality attribute.
No. AOD9604 is a short synthetic fragment of the hGH sequence, not the full 191-amino-acid hormone. It lacks the regions that mediate hGH receptor activation and growth-promoting effects. Products labeled as AOD9604 should not be assumed to have the same properties as hGH.
No major regulatory agency has approved AOD-9604 as a medicine. It is treated as an experimental peptide in research settings. Some countries restrict its sale or import.