A practical reference on lyophilized powder: what it is, how it behaves, what the literature reports, and where the honest uncertainties sit.
This page was last updated on 2026-07-01 and is reviewed periodically as new material appears.
Early interest in AOD-9604 centered on whether a fragment of human growth hormone could influence fat metabolism without the broader effects of the full hormone. Cell and animal studies reported changes in fat storage and breakdown. Human trials followed, but the results were not strong enough to secure regulatory approval. The compound remains available for laboratory research, and its clinical potential is still described as uncertain. Studies continue to examine its activity and safety profile.
AOD-9604 is a synthetic peptide that corresponds to a short section of human growth hormone. It is commonly identified as hGH fragment 176-191 because its sequence matches residues at the C-terminal end of the hormone. The molecule contains sixteen amino acids and is made by solid-phase peptide synthesis. Researchers study it for metabolic effects rather than for the growth-promoting actions associated with full human growth hormone. Its small size distinguishes it from the complete 191-amino-acid hormone.
Several names appear in scientific and commercial settings. AOD9604 and AOD-9604 are development codes used interchangeably, while hGH fragment 176-191 describes the same region. The peptide includes a disulfide bond between two cysteine residues, which helps shape its three-dimensional structure. Different suppliers may provide acetate or other salt forms, and purity can vary. These differences matter because analytical tests and biological assays can respond to the specific form being studied.
Regulatory bodies have taken different approaches to AOD-9604. It is not approved as a prescription medicine by major agencies such as the U.S. Food and Drug Administration or the European Medicines Agency. In sport, the World Anti-Doping Agency prohibits peptide hormones, growth factors, and related substances, and AOD-9604 has been treated as a prohibited substance. These regulatory decisions reflect concerns about safety, efficacy, and potential misuse rather than proof of benefit.
Research on AOD-9604 also examines how the peptide is measured in biological samples. Analytical methods may include liquid chromatography coupled with mass spectrometry, immunoassays, or both. Detection can be challenging because the peptide is small and may be present at low concentrations. Published methods vary in sensitivity and specificity, so comparative interpretation requires attention to validation details. The presence of related hGH fragments can complicate identification in some matrices.
| Property | Value | Notes |
|---|---|---|
| Common name | AOD-9604 | Development code used in scientific literature. |
| Chemical class | Synthetic peptide | Fragment of human growth hormone. |
| Amino acid length | 16 residues | Matches hGH region 176-191. |
| Appearance | White to off-white powder | Typical lyophilized peptide solid. |
| Solubility | Soluble in water | Dissolves in aqueous media; exact behavior depends on salt form. |
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.
Development of AOD-9604 began in the 1990s as scientists sought to isolate metabolic effects of growth hormone without its growth-promoting actions. Early laboratory work focused on fat cells and animal models. Several human trials followed, examining changes in body composition and fat mass. Results have been mixed, and the peptide has not progressed to widespread clinical approval. Interest continues in research settings, particularly regarding its mechanism and potential metabolic targets.
Regulatory status varies by country. In the United States, AOD-9604 is not approved as a prescription drug. It is sometimes sold as a research chemical or dietary supplement, though such marketing may fall outside legal frameworks. The World Anti-Doping Agency prohibits its use in sport. Researchers must obtain it through legitimate suppliers and follow institutional rules. Its legal classification continues to evolve as authorities increasingly assess peptide products more broadly.
AOD-9604 is a synthetic peptide whose sequence matches the C-terminal fragment of human growth hormone, specifically residues 176 through 191. This region differs from the full hormone in its receptor interactions. The peptide is not a growth hormone secretagogue and does not bind the growth hormone receptor in the same manner. Researchers have examined it for effects on lipid metabolism, but its exact pharmacological profile remains an active area of study.
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Regions richer in alanine (A), glutamic acid (E), leucine (L), and methionine (M) and poorer in proline (P), glycine (G), tyrosine (Y), and serine (S) tend to form an α-helix. Proline destabilizes or breaks an α-helix but can be present in longer helices, forming a bend.
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Whilst being unable to play in 2014 due to a hip flexor injury, Watson did commentary work for the Seven Network as a boundary rider for one match; he later returned in 2019 for a home-and-away match and final. He also filled in for co-host Craig Hutchison on the episode of Footy Classified immediately following the final home-and-away round of the 2017 season, and was a guest panellist on Talking Footy in 2019. He joined Seven's commentary team on a more permanent basis in 2020. While serving his suspension in 2016, Watson worked at Hole in the Wall, a coffee shop in New York City. During his retirement speech, Watson said that he had several United States–based business interests, including two café-style venues, a gym and a buyers' advocacy business, that he wanted to focus on upon retiring. In June 2019, Watson participated in the Big Freeze at the 'G alongside several former AFL footballers and Australian sportspeople to raise money for the Cure for MND Foundation.
Sources: en.wikipedia.org
== History == The term operando first appeared in catalytic literature in 2002. It was coined by Miguel A. Bañares, who sought to name the methodology in a way that captured the idea of observing a functional material – in this case a catalyst – under actual working, i.e. device operation, conditions. The first international congress on operando spectroscopy took place in Lunteren, Netherlands, in March 2003, followed by further conferences in 2006 (Toledo, Spain), 2009 (Rostock, Germany), 2012 (Brookhaven, USA), and 2015 (Deauville, France). The name change from in situ to operando for the research field of spectroscopy of catalysts under working conditions was proposed at the Lunteren congress. The analytical principle of measuring the structure, property and function of a material, a component disassembled or as part of a device simultaneously under operation conditions is not restricted to catalysis and catalysts. Batteries and fuel cells have been subject to operando studies with respect to their electrochemical function.
== Ownership == Ranpak was sold in December 2001 to First Atlantic Capital for over $100 million. In December 2005, First Atlantic sold Ranpak to American Capital Strategies Ltd., which in turn sold Ranpak Corp to Odyssey Investment Partners in 2007. Rhone Group acquired the company in 2014. In 2019, a group led by One Madison Group and its founder, Omar Asali, purchased Ranpak from Rhone Group for $950 million. Asali, former co-head of Goldman Sachs Hedge Fund Strategies, is the current president and CEO.
=== OpenStack === NASA developed a cloud compute platform to give additional computer and storage resources for its engineers, called Nebula. In July 2010, the Nebula code was released as open source and NASA partnered with Rackspace, to form the OpenStack project. OpenStack is used in the cloud-based products from many companies in the cloud market.
Sources: en.wikipedia.org
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Travis Charles Colyer (born 24 August 1991) is a former professional Australian rules footballer who played for the Essendon Football Club and Fremantle Football Club in the Australian Football League (AFL).
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Wojciech Jaruzelski, having been appointed First Secretary of the Polish United Workers' Party, introduces martial law, which drastically restricts normal life, in an attempt to crush the Solidarity trade union and the political opposition against communist rule.
Sources: en.wikipedia.org
AOD-9604 is a synthetic peptide fragment of human growth hormone. It corresponds to the C-terminal region known as hGH 176-191 and is studied for metabolic effects. It is not an approved therapeutic drug.
No. It contains only a small portion of the human growth hormone sequence. The full hormone has 191 amino acids and many additional actions that the fragment does not share.
The name refers to the amino acid positions in the human growth hormone chain. The fragment spans residues 176 through 191 at the C-terminal end. This naming convention helps distinguish it from full-length hGH.
No. It is not approved as a therapeutic drug by major regulators. It is sold for research purposes in many settings, which is not the same as clinical approval.