Humanin is a 24\u2011amino acid peptide originally identified in a functional screening of cDNA libraries derived from the occipital cortex of an Alzheimer\u2019s disease patient. The peptide has since attracted substantial interest in basic cell\u2011biology and preclinical research due to its protective actions observed across a range of cellular stress models. For laboratories engaged in mechanistic studies, Humanin bulk powder<\/strong> offers a convenient, high\u2011purity lyophilized form that supports reproducible experimental workflows. The peptide is synthesized through solid\u2011phase methods, purified to high homogeneity, and supplied exclusively for research purposes only<\/strong>. It is not intended for human or veterinary application; any use must be confined to controlled laboratory settings.<\/p>\n A thorough understanding of Humanin\u2019s molecular characteristics is essential for proper experimental design. The native peptide has the molecular formula C119<\/sub>H204<\/sub>N34<\/sub>O32<\/sub>S1<\/sub> and a molecular weight of approximately 2688.1 g\/mol. Its primary sequence is:<\/p>\n MAPRGFSCLLLLTGEIDLPQKR<\/strong><\/p>\n Depending on the research variant, modifications such as the substitution of Ser14 by Gly (to produce the S14G\u2011Humanin analogue) or the use of D\u2011enantiomers may be employed; these alterations can influence in vitro stability and activity. Researchers should verify the exact sequence with the supplier\u2019s certificate of analysis.<\/p>\n Commercial bulk powder meets stringent purity specifications:<\/p>\n These properties underpin the reliable handling and formulation of Humanin in diverse laboratory protocols.<\/p>\n Humanin bulk powder is utilized in an array of basic science investigations focused on cellular resilience, metabolism, and signal transduction. All applications described below are confined to in vitro<\/strong> und in vivo<\/strong> laboratory models; no therapeutic or diagnostic claims are implied.<\/p>\n Importantly, these studies are performed under controlled experimental conditions; the peptide serves as a research reagent to probe molecular mechanisms, not as a therapeutic agent.<\/p>\n In cell\u2011based assays, Humanin is typically applied at concentrations ranging from the low nanomolar (10\u2013100 nM) to the low micromolar (1\u201310 \u00b5M) level, depending on cell type, exposure duration, and endpoint. For example, neuroprotection models often use 0.1\u20131 \u00b5M Humanin added prior to or concurrently with the stressor. Solubilization in sterile, molecular\u2011biology\u2011grade water or DMSO is common; the final concentration of organic solvent in culture medium should be kept below 0.1% to avoid solvent\u2011induced artefacts.<\/p>\n For animal studies, researchers must determine appropriate dosing based on body weight, route (e.g., intraperitoneal, intravenous), and institutional animal care committee approvals. Humanin is frequently administered at doses in the low\u2011milligram per kilogram range, but exact parameters must be established by the investigator for each model. Lyophilized powder is reconstituted in sterile saline or PBS and filtered through a 0.22 \u00b5m membrane prior to injection. Aliquoting and storing working solutions at \u221280\u00b0C is recommended to preserve activity across multiple experimental sessions.<\/p>\n Reproducible research outcomes depend on the quality and consistency of reagents. When sourcing Humanin bulk powder, laboratories should request detailed documentation:<\/p>\n By prioritizing suppliers that provide transparent analytical data, research teams can minimise variability and improve data integrity.<\/p>\n Proper handling of Humanin bulk powder safeguards both personnel safety and peptide integrity.<\/p>\n Storage of lyophilized powder:<\/strong> The peptide should be stored at \u221220\u00b0C in a tightly sealed, desiccated container protected from light. Under these conditions, the powder remains stable for at least 2 years when left undisturbed.<\/p>\n Reconstitution and solution storage:<\/strong> After dissolving in the chosen buffer, solutions are best used immediately. If storage is necessary, aliquot the solution into single\u2011use volumes, snap\u2011freeze in liquid nitrogen, and store at \u221280\u00b0C. Repeated freeze\u2011thaw cycles degrade the peptide and can lead to precipitation or loss of bioactivity; hence, each aliquot should be thawed once and discarded after use.<\/p>\n Safety precautions:<\/strong> Wear appropriate personal protective equipment (lab coat, gloves, safety goggles) when handling the powder. Although Humanin is not classified as hazardous, standard good laboratory practices for peptides should be followed. Work in a chemical fume hood or biosafety cabinet when weighing or reconstituting the material to avoid inhalation or contact.<\/p>\n Humanin bulk powder is sold under the strict provision of research use only<\/strong>. It is not intended for diagnostic, therapeutic, or clinical application, nor for use in food, drug, or household products. Customers accept responsibility for compliance with local regulations and institutional policies.<\/p>\n Depending on the country of destination, export controls may apply. International shipments may require an end\u2011use statement, a purchase order on institutional letterhead, or an import permit from the competent authority. Customers are advised to consult with the supplier\u2019s export compliance team to ensure all documentation is in order before placing an order.<\/p>\n Minimum order quantities vary; bulk pricing is typically quoted for orders exceeding 1 gram. Lead times for custom\u2011synthesized batches or large\u2011scale production can range from 2 to 8 weeks. Each consignment is accompanied by a certificate of analysis and a research\u2011use declaration. For detailed quotes, sample requests, or lot\u2011reservation inquiries, contact the distributor directly.<\/p>\n Q: What purity levels are available for Humanin bulk powder?<\/strong> Q: Is the peptide endotoxin\u2011free?<\/strong> Q: How is the powder shipped?<\/strong> Q: Can Humanin bulk powder be used in animal studies?<\/strong> Q: What documentation is provided with the order?<\/strong> Hinweis: Nur f\u00fcr Forschungszwecke:<\/strong> This product is furnished solely for in vitro<\/strong> und in vivo<\/strong> laboratory research. It is not manufactured for, nor should it be employed in, any clinical, diagnostic, therapeutic, or veterinary application. Any use outside these boundaries is strictly prohibited and may violate applicable laws.<\/p>\n Nur f\u00fcr Forschungszwecke. Nicht zur Anwendung am Menschen oder bei Tieren bestimmt.<\/em><\/p>","protected":false},"excerpt":{"rendered":" Introduction to Humanin Bulk Powder Humanin is a 24\u2011amino acid peptide originally identified in a functional screening of cDNA libraries derived from the occipital cortex of an Alzheimer\u2019s disease patient. The peptide has since attracted substantial interest in basic cell\u2011biology and preclinical research due to its protective actions observed across a range of cellular stress […]<\/p>\n","protected":false},"author":1,"featured_media":1301,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"news_category":[],"class_list":["post-1300","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"\nChemische und physikalische Eigenschaften<\/h2>\n
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Research Applications in Laboratory Studies<\/h2>\n
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In Vitro and In Vivo Research<\/h3>\n
Sourcing High\u2011Quality Humanin Bulk Powder<\/h2>\n
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Handling, Storage, and Stability<\/h2>\n
Ordering and Regulatory Information<\/h2>\n
Frequently Asked Questions (FAQ)<\/h3>\n
A: Standard purity ranges from 95% to 98% as determined by HPLC. Ultra\u2011high purity (>98%) can often be produced on request, with additional purification steps.<\/p>\n
A: Research\u2011grade Humanin is tested for endotoxins using the LAL method; typical values are below 1 EU\/mg. For particularly sensitive cell\u2011based assays, suppliers can provide lots with confirmed endotoxin levels of \u22640.1 EU\/mg.<\/p>\n
A: The lyophilized powder is packaged in a sealed, inert\u2011atmosphere vial with desiccant and protective cushioning. Temperature\u2011controlled shipping options (e.g., with cold packs or dry ice) can be arranged to minimise thermal exposure during transit, although the dry powder is stable at ambient temperature for short periods.<\/p>\n
A: Yes, provided the study is conducted under an approved institutional animal care protocol. The material is certified for research purposes only; it is the investigator\u2019s responsibility to determine appropriate formulation, sterility, and dosing.<\/p>\n
A: Each shipment includes a lot\u2011specific certificate of analysis (HPLC, MS, net peptide content, counterion information, endotoxin level, residual solvents) and a signed declaration confirming that the product is intended exclusively for laboratory research.<\/p>\n