Kisspeptin-10 15mg — Vial Spec, Reconstitution Math & COA
A 15mg vial of Kisspeptin-10 provides high-mass yield intended specifically for high-throughput in vitro screens, receptor binding assays, and extended preclinical rodent model series. This technical overview details the chemical specifications, volumetric reconstitution math, aliquot management protocols, and lot-specific analytical validation for laboratory investigators evaluating this reproductive signaling peptide.
Quick answer
A 15mg vial of Kisspeptin-10 provides high-mass yield intended specifically for high-throughput in vitro screens, receptor binding assays, and extended preclinical rodent model series. This technical overview details the chemical specifications, volumetric reconstitution math, aliquot management protocols, and lot-specific analytical validation for laboratory investigators evaluating this reproductive signaling peptide.
Key takeaways
- The 15mg vial format of [Kisspeptin](/research-peptides/kisspeptin-10)-10 is manufactured specifically for institutional laboratories, university research units, and high-throughput screening facilities that require substantial peptide mass from a single controlled lyophilized lot.
- [Kisspeptin](/research-peptides/kisspeptin-10)-10 is a primary endogenous ligand for the G-protein coupled receptor KISS1R (formerly known as GPR54).
- Accurate volumetric reconstitution of a 15mg (15,000 µg) lyophilized vial is essential to ensure precise assay dosing and consistent concentration measurements.
- Repeated freeze-thaw cycles degrade short-chain signaling peptides through physical shear stress and surface adsorption.
15mg Vial Specifications & Laboratory Use Case
The 15mg vial format of Kisspeptin-10 is manufactured specifically for institutional laboratories, university research units, and high-throughput screening facilities that require substantial peptide mass from a single controlled lyophilized lot. Containing 15 milligrams of purified, freeze-dried Kisspeptin-10 (a decapeptide fragment corresponding to residues 112–121 of the KISS1 precursor protein), this high-yield presentation minimizes lot-to-lot variance across multi-week assay schedules.
Investigators select the 15mg format primarily for protocols demanding repeated enzymatic assays, receptor activation kinetics, or multi-animal cohort dosing in preclinical hypothalamic-pituitary-gonadal (HPG) axis modeling. Because lyophilized peptide stability is optimal prior to reconstitution, purchasing a larger single-vial mass allows research teams to aliquot concentrated stock solutions into single-use experimental volumes, drastically cutting down on vial-to-vial reconstitutions and preserving experimental reproducibility.
PX1 Research supplies analytical-grade reagents to qualified scientific institutions across the United States. While custom synthesis and bulk fills are regularly processed for specialized accounts through our wholesale research portal, standard single-vial offerings can be reviewed across our full catalog of all peptides and dedicated Kisspeptin-10 product page.
Upstream Reproductive Signaling & HPG Axis Mechanism
Kisspeptin-10 is a primary endogenous ligand for the G-protein coupled receptor KISS1R (formerly known as GPR54). Preclinical studies suggest that Kisspeptin-10 acts as the master upstream regulator of the reproductive hormone axis by directly binding to KISS1R located on gonadotropin-releasing hormone (GnRH) neurons within the arcuate nucleus and preoptic area of the hypothalamus.
In vitro data indicate that activation of KISS1R initiates an intracellular signaling cascade mediated by Gq/11 proteins, triggering phospholipase C (PLC) activation, intracellular calcium mobilization, and protein kinase C (PKC) phosphorylation. This intracellular signal drives pulsatile release of endogenous GnRH into the hypophyseal portal system. In animal models, subsequent stimulation of anterior pituitary gonadotropes leads to downstream secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH).
Because Kisspeptin-10 functions upstream of pituitary gonadotropins, researchers utilize this peptide to evaluate neuroendocrine feedback loops, sex steroid feedback mechanisms, and puberty initiation pathways. Unlike direct GnRH receptor superagonists that may cause rapid receptor downregulation when administered continuously, short-chain Kisspeptin-10 allows investigators to explore precise, high-affinity receptor kinetic dynamics in controlled experimental settings.
Reconstitution Math: Diluent Volumes & Final Concentrations
Accurate volumetric reconstitution of a 15mg (15,000 µg) lyophilized vial is essential to ensure precise assay dosing and consistent concentration measurements. Depending on the desired working concentration for microplate assays or cell culture delivery, researchers can calculate final stock strength using standard volumetric equations or reference our digital reconstitution calculator.
When adding 1.0 mL of sterile bacteriostatic water or laboratory buffer to a 15mg vial, the resulting stock concentration is exactly 15.0 mg/mL (15.0 µg/µL or 15,000 µg/mL). Adding 2.0 mL of diluent yields a final concentration of 7.5 mg/mL (7.5 µg/µL or 7,500 µg/mL). If 3.0 mL of diluent is introduced, the concentration resolves to 5.0 mg/mL (5.0 µg/µL or 5,000 µg/mL).
For sub-micromolar in vitro binding assays, secondary working dilutions are typically required. For example, diluting 10 µL of a 5.0 mg/mL stock into 990 µL of reaction buffer produces an intermediate concentration of 0.05 mg/mL (50 µg/mL), allowing researchers to pipet nanomolar concentrations without encountering fluid volume displacement errors.
Aliquot Planning & In Vitro Handling Protocols
Repeated freeze-thaw cycles degrade short-chain signaling peptides through physical shear stress and surface adsorption. For a 15mg high-yield vial, proper aliquot planning immediately following initial reconstitution is mandatory to safeguard structural integrity across long-term experimental timelines.
Once the lyophilized cake is fully dissolved in appropriate laboratory diluent—such as 0.9% sterile bacteriostatic saline or specialized assay buffers—the reconstituted liquid should be immediately partitioned into single-use polypropylene microcentrifuge tubes or low-binding vials. Aliquots of 50 µL to 200 µL are standard for most laboratory workflows, preventing the remainder of the 15mg batch from undergoing temperature fluctuations during routine pipetting.
Researchers conducting cell culture work must ensure that diluents and delivery vessels are certified pyrogen-free. Furthermore, gentle rotational mixing should be employed during dissolution; intense vortexing should be avoided as it can introduce air bubbles, promote surface denaturation, and induce mechanical cleavage of fragile peptide bonds.
Analytical Quality Assurance: HPLC, MS & Lot-Matched COAs
Rigorous verification of mass, purity, and freedom from biological contaminants is essential when sourcing research compounds for scientific publication. PX1 Research enforces stringent analytical testing on every single lot of Kisspeptin-10 produced in our domestic, ISO 17025-accredited partner laboratories.
Purity is quantitatively established via High-Performance Liquid Chromatography (HPLC) coupled with UV detection at 214 nm and 280 nm. To earn verification, the chromatogram for a Kisspeptin-10 lot must demonstrate a sharp, symmetrical primary peak confirming ≥98.0% chemical purity, with negligible baseline impurities or degradation products.
Electrospray Ionization Mass Spectrometry (ESI-MS) is simultaneously performed to verify exact molecular mass against the theoretical sequence mass of Kisspeptin-10 (C63H83N17O14, exact mass: 1302.45 g/mol). Additionally, Limulus Amebocyte Lysate (LAL) testing is conducted to verify endotoxin levels remain strictly under <0.01 EU/µg. Laboratory researchers can search and download raw analytical reports directly from our centralized COA database.
Storage & Stability Specifications
Lyophilized Kisspeptin-10 15mg vials exhibit excellent long-term stability when stored under controlled atmospheric conditions. Unopened lyophilized vials should be stored in a commercial laboratory freezer at -20°C or -80°C, protected from ambient light and moisture. Under these cold-chain conditions, the freeze-dried peptide mass maintains analytical stability for up to 24 months.
Upon volumetric reconstitution, liquid stock solutions stored at 2°C to 8°C (standard laboratory refrigeration) remain stable for approximately 14 to 21 days when preserved with 0.9% benzyl alcohol (bacteriostatic water). If reconstituted in unpreserved sterile water or phosphate-buffered saline (PBS), liquid aliquots should be used within 24 hours or frozen immediately.
Deep-frozen reconstituted aliquots (-80°C) maintain physical stability for up to 3 to 6 months. Researchers should consult our extended guide on peptide storage guidelines to establish standardized laboratory operating procedures for thermal control and light shielding.
Comparative Analysis: Kisspeptin-10 vs. Related HPG Axis Compounds
When investigating neuroendocrine signaling along the reproductive axis, research teams often evaluate Kisspeptin-10 alongside downstream or collateral receptor agonists. Understanding the operational differences between these target mechanisms is critical for selecting the correct peptide candidate for specific assay designs.
Unlike direct GnRH agonists such as Gonadorelin or long-acting analogs like Triptorelin—which bind directly to pituitary GnRH receptors—Kisspeptin-10 acts one step higher in the neuroendocrine cascade by activating KISS1R on hypothalamic neurons. Consequently, Kisspeptin-10 administration modulates native, endogenous GnRH release rather than artificially bypassing central regulatory control.
While GnRH superagonists frequently induce rapid receptor desensitization and down-regulation of LH/FSH secretion during sustained exposure, Kisspeptin-10 exhibits a shorter signaling half-life in preclinical models. This brief kinetic profile allows investigators to study transient, pulsatile neuroendocrine responses without inducing permanent receptor refractory states.
Selecting Mass Formulations: 15mg vs. Standard Vial Yields
Choosing between a 15mg vial yield and smaller standard formulations (such as 2mg, 5mg, or 10mg vials) depends primarily on experimental scale, assay frequency, and stock management preferences. A 15mg vial offers distinct economic and analytical efficiencies for large-scale animal study groups or automated robotic pipetting screens where maintaining a single lot identity is paramount.
However, for small-scale pilot studies or low-throughput in vitro binding assays, opening a 15mg vial may expose excess reconstituted stock to prolonged storage or unnecessary freeze-thaw risk. In such cases, purchasing smaller unit sizes ensures fresh reconstitution for each discrete assay run.
If a specific mass presentation like 15mg is currently out of stock or custom-ordered, researchers can review immediately available standard unit sizes on our primary Kisspeptin-10 catalog page or explore related neuroendocrine tools in our broader research hub.
PX1 Research Manufacturing & USA Quality Standards
PX1 Research operates as a trusted USA-based supplier of high-purity research peptides, serving scientific investigators, academic laboratories, and private research institutions. Every batch of peptide synthesized for our catalog undergoes rigorous quality controls within state-of-the-art, GMP-compliant facilities.
We enforce a strict policy of transparency and analytical rigors: zero grey-market import repackaging, zero unverified purity claims, and complete lot-matched documentation. Orders placed before cut-off times ship same-day from our domestic distribution centers in California and Arizona, utilizing temperature-monitored cold-pack packaging to guarantee peptide stability during transit.
By adhering to ISO 17025 testing protocols and supplying comprehensive HPLC and mass spectrometry data for every batch, PX1 Research provides laboratories with the exact consistency needed to generate valid, reproducible scientific data.
Frequently Asked Questions
What is the physical appearance of a 15mg Kisspeptin-10 vial?
A 15mg Kisspeptin-10 vial contains a compact, freeze-dried (lyophilized) white or off-white cake sealed under vacuum in a sterile glass vial with a flip-off aluminum cap.
How do I calculate the concentration of Kisspeptin-10 when adding 2 mL of diluent?
Dividing the 15mg mass (15,000 µg) by 2.0 mL of diluent results in a stock concentration of 7.5 mg/mL (7.5 µg/µL). You can verify custom reconstitution math using our digital reconstitution calculator.
What diluent should be used to reconstitute Kisspeptin-10 for laboratory research?
For short-term multi-use laboratory storage, 0.9% sterile bacteriostatic water (containing benzyl alcohol) is recommended. For immediate cell culture or in vitro enzymatic assays, sterile pyrogen-free water or PBS may be utilized.
What receptor does Kisspeptin-10 target in preclinical research?
Kisspeptin-10 is a high-affinity endogenous agonist for the KISS1R receptor (formerly known as GPR54), located predominantly on hypothalamic GnRH neurons.
How does PX1 Research verify the purity of a 15mg Kisspeptin-10 lot?
PX1 Research verifies each lot using High-Performance Liquid Chromatography (HPLC) to confirm ≥98.0% purity, Electrospray Ionization Mass Spectrometry (ESI-MS) to verify molecular weight, and LAL assays to ensure endotoxin levels are <0.01 EU/µg.
How long can reconstituted Kisspeptin-10 be stored at 4°C?
When reconstituted in bacteriostatic water, liquid stock solutions maintain stability at 2°C–8°C for approximately 14 to 21 days. Single-use aliquots frozen at -80°C remain stable for 3 to 6 months.
What is the molecular weight and sequence of Kisspeptin-10?
Kisspeptin-10 (sequence: Tyr-Asn-Trp-Asn-Ser-Phe-Gly-Leu-Arg-Phe-NH2) has an exact theoretical molecular weight of 1302.45 g/mol.
How does Kisspeptin-10 differ from Gonadorelin in experimental design?
Kisspeptin-10 acts upstream by stimulating endogenous GnRH release via KISS1R activation on hypothalamic neurons. Gonadorelin acts downstream as a direct agonist at pituitary GnRH receptors.
Where can I obtain the lot-matched COA for my Kisspeptin-10 vial?
Lot-matched Certificates of Analysis containing full HPLC chromatograms and mass spectra can be retrieved directly from the PX1 Research COA database using your vial lot number.
Are PX1 Research compounds intended for human or veterinary use?
No. All compounds supplied by PX1 Research are strictly intended for in vitro, cell culture, and laboratory research use only. They are never for human, clinical, or veterinary administration.
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