BUY 5FUR-144 Online

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The continuous evolution of synthetic cannabinoid receptor agonists (SCRAs) requires forensic laboratories to maintain highly adaptive, precise screening protocols. 5F-UR-144 (also known as XLR-11), characterized by its unique tetramethylcyclopropylindole core and terminal fluorine substitution, remains a critical benchmark compound for method validation. For analytical chemists, toxicology researchers, and serious collectors who need to buy 5f-ur-144 online to calibrate mass spectrometers or verify novel extraction methodologies, securing a reference standard with unassailable purity and comprehensive spectral documentation is a foundational requirement for defensible casework. BUY 5FUR-144 Online

Core Physicochemical Reference Parameters

• Target Compound: 5F-UR-144 (XLR-11)
• IUPAC Name: 1-(5-fluoropentyl)-3-(2,2,3,3-tetramethylcyclopropyl)-1H-indole
• CAS Registry Number: 1218776-42-9 (Note: Verify specific salt/form, commonly referenced under XLR-11) BUY 5FUR-144 Online
• Molecular Formula: C21H28FN
• Molar Mass: 313.45 g/mol
• Verified Purity: >= 99.0% (Independent HPLC & GC-MS)
• Physical State: Fine, white to off-white crystalline powder
• Format: Analytical reference unit

Comparative Chromatographic Behavior & Retention Shifts

When toxicology labs choose to buy 5f-ur-144 online for panel validation, they are primarily solving a specific structural identification problem: differentiating it from its non-fluorinated parent, UR-144. The addition of the terminal fluorine atom on the pentyl chain introduces a subtle but critical shift in polarity. On standard non-polar GC columns (e.g., 5% phenyl methylpolysiloxane), this results in a distinct, slightly earlier retention time compared to UR-144. Independent analytical communities, such as those documented on PsychonautWiki and the extensive harm-reduction archives at Erowid, frequently highlight the importance of using pure parent standards to accurately map these retention index shifts and avoid false positives in complex biological matrices. BUY 5FUR-144 Online

Mass Spectrometry Signature & Fragmentation Pathways

In electron impact (EI) mass spectrometry, 5F-UR-144 yields highly diagnostic fragment ions that cleanly separate it from other indole-based SCRAs. The most prominent diagnostic feature is the cleavage of the fluoropentyl chain, alongside the characteristic cyclopropyl-indole fragments. Unlike naphthoylindoles (which produce a strong m/z 155 naphthoyl cation), 5F-UR-144 produces a unique fragmentation profile centered around the tetramethylcyclopropyl moiety. Having a pure, verified parent standard is absolutely essential for confirming these specific mass shifts and for identifying major urinary metabolites, such as the 5-hydroxypentyl or carboxylated variants, during LC-MS/MS analysis. BUY 5FUR-144 Online

Sourcing Integrity & Analytical Guarantee

Procuring certified reference materials is the primary defense against the rampant structural substitution prevalent in the unregulated research chemical market. By choosing to buy 5f-ur-144 online from ChemNexis Pharma, laboratories secure a material backed by rigorous, transparent quality control. We do not provide generic certificates; every shipment includes a batch-matched Certificate of Analysis (CoA) featuring full HPLC purity integration and complete GC-MS spectral traces, guaranteeing independent verification of identity and purity upon receipt. BUY 5FUR-144 Online

Environmental Control & Statutory Compliance

Maintaining the physicochemical stability of complex indole-based SCRAs requires strict environmental controls. The reference material must be stored sealed in its original light-resistant, airtight amber glass vial at 2-8°C, rigorously protected from UV exposure and atmospheric moisture to prevent oxidative degradation.

COMPLIANCE NOTICE: This material is sold exclusively for laboratory analysis, forensic reference work, and educational collector purposes. It is strictly not intended for human or veterinary consumption. Furthermore, any entity choosing to buy 5f-ur-144 online through our platform explicitly agrees to our terms of service and confirms that all handling will comply with applicable local, state, and federal regulations regarding scheduled substances.BUY 5FUR-144 Online

Researcher Frequently Asked Questions

Q: Is it safe to buy 5f-ur-144 online for research?
A: Yes, when you buy 5f-ur-144 online from a verified, reputable supplier like ChemNexis Pharma, you are guaranteed a lab-tested, high-purity analytical standard backed by a comprehensive Certificate of Analysis and secure, discreet shipping protocols.

Q: How does community discussion inform forensic laboratory standards?
A: Independent research forums, such as Reddit’s r/ResearchChemicals and the Bluelight analytical discussion boards, often serve as early warning systems for emerging structural analogs and unexpected metabolic pathways. Cross-referencing these community observations with official mass spectrometry data helps forensic labs refine their screening panels proactively.

Q: What documentation accompanies the reference standard?
A: Every order includes a lot-specific Certificate of Analysis (CoA) detailing HPLC integration and spectral data. For baseline comparative research, databases like PubChem serve as excellent supplementary resources for structural validation.

Complementary Reference Standards for Cannabinoid Profiling: BUY 5FUR-144 Online

Build a defensible, comprehensive screening library by pairing this standard with our other verified SCRA references: BUY 5FUR-144 Online

• UR-144 Analytical Standard
• 5F-MDMB-2201 Analytical Standard
• SGT-78 Analytical Standard
• Synthetic Cannabinoids (NPS) Category Hub