Everything below concerns research chemical. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Updated 2025-10-06. Numbers and descriptions here follow the published literature rather than marketing material.
Within the research literature, the peptide is discussed through several provisional mechanisms, including cytoprotection, modulation of growth factor signaling, and interaction with the nitric oxide system. None of these mechanisms is fully characterized, and no single pathway is universally accepted. Review articles typically note the gap between consistent animal findings and sparse human evidence. The compound is classified as a research chemical rather than an approved pharmaceutical, which shapes how studies are designed, funded, and reported.
BPC-157 is a synthetic pentadecapeptide with the sequence GEPPPGKPADDAGLV, corresponding to a partial fragment of a larger protein detected in human gastric juice. The name derives from the parent protein designation BPC, an abbreviation of body protection compound, with 157 acting as a fraction or batch identifier used by the original investigators. Its molecular weight is approximately 1419 daltons, and the chain contains no unusual residues or disulfide bridges. In the literature it is described as a short, water-soluble fragment rather than a complete natural protein.
Standard practice for the solid form is storage at minus twenty degrees Celsius or colder, kept dry and away from light. Containers are usually sealed with a desiccant to limit moisture uptake. Reconstituted solutions are typically held at two to eight degrees Celsius and used within a short window, because potency can decline over days to weeks depending on the buffer and concentration. Freezing an already dissolved sample may help, though repeated thawing is discouraged. Specific shelf-life claims vary between suppliers and are rarely supported by published stability studies.
Identity and purity are usually assessed by reversed-phase high-performance liquid chromatography with ultraviolet detection near 214 nanometers, a wavelength that captures the peptide backbone. The main peak area is reported as a percentage of total peak area, which serves as a conventional purity figure. Mass spectrometry provides an independent check on molecular mass and helps confirm the expected sequence. Additional tests may include amino acid analysis and water content determination. Results are only comparable when the same column, gradient, and detection settings are used.
| Property | Value | Notes |
|---|---|---|
| Molecular formula | C62H98N16O22 | computed for the free peptide |
| Molecular weight | about 1419 Da | monoisotopic mass near 1418.7 |
| Amino acid count | 15 | single chain, no disulfide bonds |
| Solubility | freely soluble in water | also dissolves in saline and phosphate buffer |
| Common synonyms | pentadecapeptide BPC, BPC 157 | fragment notation varies by source |
Most published studies examine BPC-157 in animal models rather than in humans. Common subjects include rats and mice, and researchers often use models of tissue injury, surgery, or induced inflammation. Reported endpoints include healing rates, blood vessel formation, and markers of tissue repair. These designs provide controlled comparisons, but findings in animals do not automatically transfer to people. Human clinical data remain limited and are frequently described as preliminary.
Doses in the literature are usually expressed in micrograms or nanograms per kilogram of body weight. Investigators have administered the peptide by several routes, including injection and oral delivery, depending on the question asked. Route and dose vary widely across studies, which complicates direct comparison of results. Many papers report effects at low doses, but the absence of a standardized protocol limits generalization. Reporting practice differs between research groups.
Identity and purity are established using reversed-phase high-performance liquid chromatography, which separates the peptide from related impurities and yields a percentage purity. Mass spectrometry, typically with electrospray ionization, confirms the molecular mass against the expected value. Amino acid analysis or peptide mapping provides additional sequence confirmation. These methods are complementary, since chromatography measures how much material is present while mass spectrometry verifies what that material is. A certificate of analysis normally reports both.
Analytical results depend on the column, gradient, and detector wavelength chosen by the laboratory, so purity values from different sources are not always directly comparable. Water content, counterion form, and residual trifluoroacetate affect both mass and purity calculations. Microbiological and endotoxin testing are separate from chemical purity and are not covered by a standard chromatographic run. Buyers evaluating a material typically request the full method description rather than a single purity figure.
Lyophilized peptide powder is generally stored at minus twenty degrees Celsius or lower and kept away from light and moisture. Under these conditions degradation is slow, and sealed vials remain stable for extended periods. Once dissolved, the material is less stable, particularly in aqueous buffers near neutral pH, where hydrolysis and oxidation proceed faster. Solutions are usually kept cold and used within days to weeks. Repeated freeze-thaw cycles are avoided because they encourage aggregation.
BPC-157 is a synthetic peptide composed of fifteen amino acid residues, with the sequence Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. Its name derives from body protection compound, a term used for a protein fraction identified in human gastric juice. Researchers in Zagreb first reported the pentadecapeptide in the early 1990s and described it as a stable fragment of that larger protein. The compound is also catalogued as PL 14736 and, in some commercial contexts, as bepecin. Its molecular formula is C62H98N16O22 and its monoisotopic mass is approximately 1419 daltons.
Most published work on BPC-157 consists of preclinical studies, including rodent models of tissue injury, gastrointestinal lesions, and vascular or tendon damage, together with in vitro cell assays. Reviews frequently note that the mechanisms proposed in these papers remain incompletely characterised and that findings have not been confirmed in large randomised human trials. The compound is widely sold as a research chemical rather than a licensed medicine, and labels commonly carry a statement that it is not for human use. Whether any of the reported animal effects translate to humans is an open question rather than an established result.
Terminology in the literature is not fully standardised. Papers and product listings use BPC-157, BPC 157, and the longer phrase stable gastric pentadecapeptide BPC 157 interchangeably, and synonyms such as bepecin or PL 14736 appear in older or company-linked publications. Purity claims and reported masses can also differ between sources because peptide preparations may include counterions, residual solvents, or bound water. This variability complicates direct comparison of results across studies and makes the exact identity and grade of a given sample worth verifying. Discussions of the compound should therefore specify the source, salt form, and stated purity where those are known.
BPC-157 is a synthetic pentadecapeptide whose sequence is commonly given as Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. It is described in the literature as a fragment of a larger protein found in human gastric juice, referred to as body protection compound. The peptide was first characterized in the early 1990s by a research group in Zagreb, Croatia. Its molecular formula is C62H98N16O22 and its monoisotopic mass is approximately 1419 daltons.
Supplied material is typically a lyophilized white to off-white powder. The peptide is freely soluble in water and in common aqueous buffers, which allows it to be handled as a stock solution. Because the sequence contains no cysteine, disulfide cross-linking is not a route of degradation. The absence of aromatic residues means ultraviolet absorbance at 280 nm is minimal, so quantification usually relies on peptide bond absorbance near 214 nm or on amino acid analysis.
Common synonyms in catalogs include pentadecapeptide BPC 157, BPC157, and the full sequence name. A CAS registry number in the 137525-51-0 range is frequently listed, though the assignment should be verified against the supplier certificate of analysis. The name itself is not a pharmacopoeial designation, and there is no standardized international nonproprietary name. Distinguishing genuine material from related fragments generally requires mass spectrometry, since several truncated sequences share similar chromatographic behavior.
When comparing, in the same review, the effects of fluoxetine on weight of obese adults, to other anti-obesity agents, omega-3 gel and not receiving a treatment, the authors could not reach conclusive results due to poor quality of evidence. Among antipsychotic drugs for treating schizophrenia clozapine is the most effective, but it also has the highest risk of causing the metabolic syndrome, of which obesity is the main feature. For people who gain weight because of clozapine, taking metformin may reportedly improve three of the five components of the metabolic syndrome: waist circumference, fasting glucose, and fasting triglycerides.
== Honors == Robert M. Scarborough Award for Excellence in Medicinal Chemistry, ACS Division of Medicinal Chemistry (2009) Inducted as an American Chemical Society Fellow (2011) Alfred Burger Award in Medicinal Chemistry, American Chemical Society (2014) Inducted into the American Chemical Society Division of Medicinal Chemistry Hall of Fame (2014) Edward E. Smissman Award in Medicinal Chemistry, ACS Division of Medicinal Chemistry (2019) IUPAC–Richter Prize in Medicinal Chemistry (2020)
== Treatment == SJS constitutes a dermatological emergency. Patients with documented Mycoplasma infections can be treated with oral macrolide or oral doxycycline. Initially, treatment is similar to that for patients with thermal burns, and continued care can only be supportive (e.g., intravenous fluids and nasogastric or parenteral feeding) and symptomatic (e.g., analgesic mouth rinse for mouth ulcer). Dermatologists and surgeons tend to disagree about whether the skin should be debrided. Beyond this kind of supportive care, no treatment for SJS is accepted. Treatment with corticosteroids is controversial. Early retrospective studies suggested corticosteroids increased hospital stays and complication rates. No randomized trials of corticosteroids have been conducted for SJS, and it can be managed successfully without them. Other agents have been used, including cyclophosphamide and ciclosporin, but none have exhibited much therapeutic success. Intravenous immunoglobulin treatment has shown some promise in reducing the length of the reaction and improving symptoms. Other common supportive measures include the use of topical pain anesthetics and antiseptics, maintaining a warm environment, and intravenous analgesics. An ophthalmologist should be consulted immediately, as SJS frequently causes the formation of scar tissue inside the eyelids, leading to corneal vascularization, impaired vision, and a host of other ocular problems.
=== Autoimmune conditions === The two main autoimmune conditions that impact the muscular system are myositis (including polymyositis and dermatomyositis), and myasthenia gravis. Hypotonia Loss of muscular tone or a diminished resistance to passive stretching. Myositis Inflammation of muscles Rhabdomyolysis Breakdown of skeletal muscle with release of intracellular contents
Sources: en.wikipedia.org
==== Europe ==== In May 1963, Scheer and Maier-Borst were the first to introduce the use of 99mTc for medical applications. In 1968, Philips-Duphar (later Mallinckrodt, today Covidien) marketed the first technetium-99m generator produced in Europe and distributed from Petten, the Netherlands.
The paramilitary commandos, dressed in garish camouflage uniforms and driving around in pick-up trucks, were dreaded in Sunni neighbourhoods. People arrested by them during this period were frequently found dead several days later with their bodies bearing obvious marks of torture."
== Major political parties in parliament == African National Congress The ANC was founded in 1912, but were banned by State President Charles Robberts Swart in 1960, remaining so until the ban was lifted thirty years later by President F. W. De Klerk. The ANC became the leading political party in South Africa after the first multi-racial election in 1994. The party's main platform, which is based on a social democratic ideology, rests on working towards racial equality and eradicating the socio-economic classes which are often based on race. The ANC has been considered a party for native South Africans, especially before 2009 when party leader Jacob Zuma faced multiple accusations regarding corruption, particularly using public funds for his own purposes. The economic difficulties in South Africa, as well as police brutality have both been blamed on the ANC. Currently, the ANC holds 230 seats in parliament. Support for the ANC went down between the 2014 and the 2019 general elections, with violent protests erupting all over the country in response to the allegations of corruption within the ANC and the non-delivery of municipal services. Democratic Alliance The DA was formed when the New National Party, the successor to the apartheid-era National Party, merged with the Democratic Party and the Federal Alliance in 2000 to form an alliance. The DA is an opposition party and has been traditionally supported by South Africa's minority communities (White, Coloured and Indian).
Sources: en.wikipedia.org
The sequence corresponds to a fragment of a protein found in human gastric juice, so related sequences are natural. The isolated fifteen-amino-acid peptide supplied for research is produced synthetically. Whether the free fragment circulates naturally in humans has not been settled.
In most jurisdictions it is not an approved medicine and is handled as a research material. Import and sale rules differ by country, and some regulators have placed it in categories that restrict human use. Status can change, so current local rules apply.
Rodent models dominate, particularly rats with induced gastric lesions, tendon injury, or vascular disruption. These designs allow controlled comparison but differ anatomically and metabolically from humans. Results from such models are commonly cited as preliminary.
Reversed-phase HPLC separates the sample into peaks, and the main peak is expressed as a percentage of total peak area. Mass spectrometry is then used to confirm that the molecular mass matches the expected value.