Valerylfentanyl is a synthetic opioid and a structural analog of fentanyl, developed for use in scientific and forensic research. It mimics the general core of fentanyl molecules but features a valeryl (five-carbon) chain in its acyl group. This chemical alteration slightly reduces potency compared to fentanyl while still maintaining strong μ-opioid receptor activity, making it valuable for comparative pharmacological research and forensic toxicology.

• Classified as a fentanyl analog
  Valerylfentanyl is part of a larger group of synthetic opioids structurally based on fentanyl. These analogs vary by their acyl substitutions, which alter their pharmacological properties.

• Developed exclusively for laboratory use
  It is not intended for therapeutic, recreational, or veterinary applications. Laboratories often use it to study receptor activity, toxicity profiles, and drug detection techniques.

• Not approved for human consumption
  No clinical trials, medical approvals, or safety evaluations exist for human or animal use, and it is classified as a research-only chemical.

• Shows high binding affinity for μ-opioid receptors
  Like most fentanyl analogs, it binds effectively to the opioid receptors in biological tissues, but the valeryl substitution makes it moderately less potent than fentanyl.

• Used in toxicology and forensic studies
  Valerylfentanyl may be used as a reference compound for identifying unknown synthetic opioids in seized samples or biological fluids.

• Emerging presence in illicit markets
  Though intended solely for research, Valerylfentanyl has occasionally been detected in illicit drug mixtures, prompting interest from forensic scientists.

The legal status of Valerylfentanyl is complex and varies widely by jurisdiction. It is not explicitly scheduled in many countries but may be subject to analog or blanket bans on fentanyl derivatives. Researchers are strongly advised to verify its legal standing before importation or use.

• Not scheduled in all regions
  Valerylfentanyl does not have a universally recognized CAS number and may not be listed under international drug control treaties, making its legal status ambiguous in some countries.

• May fall under analog laws
  In the United States, for example, the Federal Analogue Act allows prosecution of compounds “substantially similar” to Schedule I or II substances intended for human consumption.

• Classified under general synthetic opioid bans
  Some countries, such as China and the UK, have broad laws banning all fentanyl-related substances or specific chemical backbones, which could include Valerylfentanyl.

• Import/export laws differ significantly
  Some jurisdictions require special research permits for importation, even if the compound is not scheduled. Customs seizure may occur if documentation is insufficient.

• Buyers are responsible for compliance
  It is crucial that laboratories or institutions purchasing Valerylfentanyl conduct proper due diligence and ensure legal conformity within their region.

• RC Plug adheres to legal restrictions
  We do not ship Valerylfentanyl to any region where the substance is explicitly banned or where importation would violate local or international regulations.

Valerylfentanyl shares its fundamental structure with fentanyl but includes a modified acyl chain, specifically a valeryl group. This chemical modification influences receptor interaction and pharmacokinetics, making it of interest in structure–activity relationship (SAR) studies.

• IUPAC Name: N-Phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]pentanamide
  This name reflects its structure, highlighting the substitution of a pentanamide group in place of fentanyl’s propionamide.

• Molecular formula: C24H32N2O
  The structure includes 24 carbon atoms, 32 hydrogen atoms, 2 nitrogen atoms, and 1 oxygen atom, denoting a complex organic compound.

• Contains a piperidine ring
  Like fentanyl, Valerylfentanyl has a piperidine core, a critical component in opioid receptor affinity.

• Features a phenethyl group
  The phenylethyl substituent contributes to the molecule’s lipophilicity and ability to cross biological membranes during in vitro testing.

• Valeryl chain replaces fentanyl’s propionyl group
  This five-carbon chain is believed to reduce potency compared to fentanyl while still allowing receptor binding.

• Highly lipophilic molecule
  Its hydrophobic nature enhances its absorption into lipid environments in laboratory systems, though it complicates solubility in aqueous solutions.

• No CAS number officially assigned
  Being a lesser-known analog, Valerylfentanyl lacks an established Chemical Abstracts Service (CAS) registry number.

Valerylfentanyl is strictly intended for use in laboratory-based research and analytical chemistry. It plays an essential role in opioid analog studies, toxicology investigations, and the development of drug detection assays.

• Used in receptor binding assays
  Scientists evaluate how it binds to opioid receptors to understand its pharmacodynamics and compare it to other analogs.

• Supports forensic toxicology
  Laboratories may use Valerylfentanyl to develop or refine techniques for detecting synthetic opioids in post-mortem samples or seized street drugs.

• Supports SAR (Structure–Activity Relationship) studies
  Chemical modifications like the valeryl group help researchers explore how structural changes affect receptor activity, potency, and metabolism.

• Developing targeted drug screens
  It serves as a calibrator in LC-MS/MS and GC-MS assays, helping labs fine-tune methods to detect novel opioids.

• Training material for toxicologists and law enforcement
  Can be used to educate analysts in recognizing new trends in synthetic opioid use and differentiation from known fentanyl derivatives.

• Analytical control in academic studies
  Universities and private research institutions often use such analogs for comparative pharmacology and neurochemical profiling.

Valerylfentanyl is considered significantly less potent than fentanyl, although it still exhibits meaningful opioid activity. Its modified structure results in reduced binding affinity and, consequently, lower analgesic and euphoric effects in receptor-based studies.

• Estimated to be 10–15x more potent than morphine
  While less potent than fentanyl (~100x morphine), Valerylfentanyl still shows robust receptor activity in vitro.

• Reduced μ-opioid receptor affinity
  The valeryl substitution diminishes the molecule’s strength at the mu-opioid receptor compared to the propionyl group in fentanyl.

• Altered pharmacokinetics
  Its structural differences may affect lipophilicity, metabolic stability, and half-life, influencing how long it acts in experimental systems.

• Not standardized for therapeutic application
  There is no clinical dosage equivalence, as it is not approved for human or veterinary use. Potency data is derived solely from lab models.

• Valuable for comparative potency models
  Researchers use it alongside fentanyl and other analogs to assess the influence of structural variation on potency and toxicity.

• Potentially lower toxicity threshold
  Because it is less potent, it may pose slightly reduced risk in accidental exposure scenarios, but remains dangerous due to opioid receptor activation.

Valerylfentanyl is a highly potent synthetic opioid analog, and even small amounts can pose significant biological risk if mishandled. Due to its potential for dermal absorption and inhalation toxicity, researchers must follow strict laboratory safety protocols when handling it.

• Use full personal protective equipment (PPE)
  Always wear disposable nitrile gloves, a laboratory coat, and protective goggles. Double-gloving may be advisable when working with high-risk substances.

• Handle inside a certified chemical fume hood
  All manipulations, including weighing, diluting, or transferring, should be done in a fume hood to minimize exposure to airborne particles.

• Avoid direct skin contact or inhalation
  Valerylfentanyl is active at microgram levels and can be absorbed through the skin or mucous membranes. Accidental contact can be hazardous, even fatal.

• Implement spill and exposure protocols
  Labs must be equipped with opioid-specific decontamination procedures and emergency protocols. Spills should be managed using absorbent materials and disposed of according to hazardous waste guidelines.

• Maintain proper labeling and containment
  Clearly label all containers, including secondary containment units, with hazard warnings. Use airtight, tamper-evident containers to avoid environmental exposure.

• Access limited to trained personnel
  Only experienced, authorized laboratory staff should handle Valerylfentanyl. Training should include information on risks, safe handling, and emergency response.

• Have naloxone accessible in the lab
  In the event of accidental opioid exposure, naloxone (an opioid antagonist) should be readily available and staff trained in its use.

Proper storage of Valerylfentanyl is essential for maintaining its stability, preventing degradation, and ensuring lab safety. It is sensitive to heat, light, and moisture, which can compromise its integrity if not stored correctly.

• Keep at -20°C in a chemical-grade freezer
  A dedicated freezer should be used to store Valerylfentanyl in a stable, low-humidity, and dark environment, preferably away from other volatile substances.

• Use airtight, moisture-resistant containers
  Store in sealed, light-resistant vials or jars with desiccant pouches to minimize the risk of moisture contamination and degradation.

• Label with full hazard identification
  Include the substance name, concentration (if in solution), date received, batch number, and appropriate hazard warnings on each container.

• Avoid repeated freeze-thaw cycles
  If aliquots are needed, pre-portion the compound to avoid constant opening and closing of the main stock vial, which can accelerate breakdown.

• Store separately from incompatible materials
  Keep away from acids, oxidizing agents, and reactive chemicals that may interact with or degrade the compound.

• Maintain an inventory log
  Document each retrieval, addition, or disposal to ensure traceability, accountability, and compliance with internal lab protocols.

Standard toxicology screens often do not detect newer fentanyl analogs like Valerylfentanyl unless specific testing methods are employed. Its structural similarity to fentanyl makes it a candidate for custom assay development in forensic labs.

• Not typically detected in routine drug screens
  Standard immunoassay panels may not cross-react with Valerylfentanyl due to its modified acyl chain and distinct chemical markers.

• LC-MS/MS and GC-MS are required
  Advanced analytical techniques, such as liquid or gas chromatography paired with mass spectrometry, are necessary to reliably identify and quantify Valerylfentanyl.

• Can be added to targeted screening libraries
  Forensic labs can include Valerylfentanyl in their custom assay databases to improve surveillance and case-specific detection.

• Useful as a reference standard
  Researchers may use it to calibrate instruments or validate methods used to detect emerging opioids in biological samples like blood, urine, or tissue.

• May show limited cross-reactivity with fentanyl tests
  Some fentanyl immunoassay kits may produce weak or no response when Valerylfentanyl is present, making dedicated analog detection crucial.

• Used in post-mortem and clinical toxicology studies
  Toxicologists employ it to identify cause-of-death factors in overdose investigations involving synthetic opioids.

Valerylfentanyl poses serious health risks if accidentally inhaled, ingested, or absorbed through the skin. Its high potency—even lower than fentanyl—means extremely small quantities can cause rapid onset of respiratory depression or unconsciousness.

• Dermal absorption can cause toxicity
  Like fentanyl, Valerylfentanyl can be absorbed through the skin, leading to systemic opioid effects, including drowsiness, confusion, or overdose symptoms.

• Inhalation of powder is hazardous
  Airborne particles may be inhaled during weighing or handling, posing a significant respiratory risk due to fast absorption through lung tissue.

• Accidental ingestion is life-threatening
  Even trace amounts can lead to overdose. Laboratories must prohibit eating, drinking, or mouth pipetting in areas where Valerylfentanyl is handled.

• Requires immediate medical attention
  Symptoms of exposure include respiratory depression, pinpoint pupils, reduced consciousness, and slow or irregular heartbeat. Emergency responders must act quickly.

• Naloxone should be administered in suspected exposure
  The opioid antagonist naloxone can reverse the effects of Valerylfentanyl, but multiple doses may be required due to the analog’s potency and duration.

• Proper training and PPE can prevent exposure
  Education and strict adherence to safety protocols remain the most effective tools to reduce accidental contact or inhalation risks.

RC Plug offers discreet international shipping, but the ability to ship Valerylfentanyl depends heavily on local laws and import restrictions. While many regions permit research use, others may have outright bans or require import permits.

• We ship only to legally compliant jurisdictions
  Valerylfentanyl is dispatched only to countries where its importation is permitted for scientific use. Orders to restricted regions will be blocked or refunded.

• Buyers must confirm local legality
  It is the responsibility of the purchasing party to ensure that ordering and possessing Valerylfentanyl complies with local, state, or national laws.

• All packages are shipped with full discretion
  We use unmarked boxes, odor-proof layers, and secure seals to ensure that shipments pass through customs without attracting attention.

• Tracking numbers are provided with every order
  Once your order is processed, you’ll receive a tracking code to monitor the shipment’s progress from our facility to your delivery location.

• Overnight or express options available
  Fast delivery options are offered for regions with efficient customs processing. Delays may occur in areas with stricter import inspections.

• We assist with customs documentation
  Upon request, we can provide a Certificate of Analysis (COA) and Safety Data Sheet (SDS) to support legitimate research claims during import review.

Valerylfentanyl is typically supplied as a white to off-white crystalline powder, consistent with the physical form of most high-purity synthetic opioids. Its appearance is a result of the compound’s chemical structure and purity, and it can vary slightly depending on manufacturing conditions.

• Crystalline or powdered texture
  The substance most commonly appears as a fine, free-flowing crystalline powder, which allows for accurate weighing and manipulation in lab environments.

• White to off-white in color
  High-purity Valerylfentanyl is generally white; slight off-white coloration can occur depending on residual solvents or trace impurities, though this does not necessarily indicate degradation.

• Uniform and clump-free when properly stored
  When kept under dry and temperature-controlled conditions, Valerylfentanyl maintains a smooth, powdery consistency without moisture clumping.

• May be hygroscopic in nature
  Like many synthetic opioids, it can absorb moisture from the air if exposed, which is why storage in sealed, low-humidity containers is crucial.

• Packaged in lab-safe containers
  RC Plug provides the compound in chemically resistant, tamper-evident vials or double-layered pouches for safety and identification.

• Appearance should match documentation
  Buyers should verify the compound’s look against product photos, Certificates of Analysis (COA), and safety documents to ensure authenticity and quality.

Valerylfentanyl, when stored correctly, has a typical shelf life of 2–3 years, although its long-term chemical stability may depend on factors like temperature, light, moisture, and frequency of access. Degradation can compromise purity, rendering it less effective or accurate for research use.

• Stable under cold, dark storage
  If maintained at -20°C in a sealed and light-resistant container, Valerylfentanyl retains its chemical stability for years.

• Exposure to heat or moisture shortens lifespan
  Improper storage—especially high humidity or elevated temperatures—can lead to hydrolysis or oxidation, degrading the compound’s integrity.

• Repeated handling reduces longevity
  Regular opening of the primary storage container introduces air and potential contaminants. Pre-aliquoting doses into separate vials helps avoid this issue.

• Shelf life can be validated with COA retesting
  Retesting the substance’s purity using high-performance liquid chromatography (HPLC) or gas chromatography (GC) ensures it still meets the required threshold.

• Physical changes may indicate degradation
  Changes in texture (e.g., clumping), color (e.g., yellowing), or smell may suggest the compound is compromised and should be re-evaluated.

• Use within labeled expiry date
  All shipments from RC Plug are marked with a suggested expiry or retest date based on synthesis and packaging dates.

Valerylfentanyl exhibits very low water solubility, a characteristic common to many highly lipophilic synthetic opioids. This impacts how the compound is used in research, especially in preparation for assays and analytical instrumentation.

• Insoluble or poorly soluble in water
  Valerylfentanyl does not readily dissolve in water, making it unsuitable for aqueous solution without modification or use of solubilizing agents.

• Readily soluble in organic solvents
  It dissolves well in solvents such as ethanol, methanol, dimethyl sulfoxide (DMSO), and acetonitrile, which are commonly used in lab assay preparation.

• Lipophilic chemical structure
  The presence of aromatic rings and a long aliphatic chain increases lipid solubility and hinders dissolution in polar solvents like water.

• Impacts in vitro experimental design
  Poor water solubility necessitates the use of surfactants or emulsifiers when attempting receptor-binding or cell culture studies.

• Suitable for LC-MS or GC-MS extraction
  Because it dissolves in organic media, Valerylfentanyl can be easily extracted and analyzed using chromatography-mass spectrometry systems.

• May require pH adjustment for dissolution
  In some research protocols, slightly acidic environments improve partial solubility or extraction yield when dealing with analog opioids.

Valerylfentanyl’s quality and research suitability are determined by comprehensive laboratory testing, especially purity analysis. RC Plug ensures that every batch of Valerylfentanyl undergoes rigorous verification using industry-standard methodologies.

• Tested using high-performance liquid chromatography (HPLC)
  HPLC separates the active compound from impurities and quantifies its purity level, typically verifying a result of ≥98%.

• Spectroscopic analysis (NMR, IR)
  Nuclear Magnetic Resonance (NMR) and Infrared Spectroscopy (IR) are used to confirm molecular structure and identify any structural anomalies.

• Mass spectrometry (MS) confirmation
  Mass spectrometry helps determine molecular weight and confirm identity, ruling out mislabeling or cross-contamination.

• COA provided with every order
  The Certificate of Analysis outlines all key metrics including purity, analytical method, lot number, and test date.

• Batch-to-batch consistency ensured
  RC Plug tests every production lot separately to ensure no deviation in compound purity across different batches.

• Independent third-party testing available upon request
  For labs requiring additional confirmation, we can facilitate third-party verification with accredited analytical labs.

No. Valerylfentanyl is strictly prohibited from in vivo use and is supplied exclusively for in vitro, analytical, or forensic research purposes. Its safety profile is unknown, and there is a substantial risk of toxicity, overdose, or death if ingested, injected, or administered in living systems.

• Not approved for human or veterinary use
  No health authority or regulatory body has approved Valerylfentanyl for use in humans or animals under any circumstance.

• Lack of clinical safety data
  There is no published toxicological profile, dose-response data, or therapeutic window available for safe dosing or risk management.

• High risk of overdose and respiratory depression
  As a synthetic opioid, even microscopic quantities can cause dangerous effects if introduced to biological systems.

• Intended for controlled environments only
  Valerylfentanyl is meant to be handled under laboratory-grade conditions, including advanced containment, trained personnel, and documented protocols.

• Use in vivo is both unsafe and potentially illegal
  Utilizing this compound in living subjects may violate research ethics, national drug laws, or institutional review board standards.

• RC Plug disclaims any misuse
  All Valerylfentanyl supplied is clearly labeled “Not for human consumption,” and customers agree to abide by all research-only use declarations.

While Valerylfentanyl and Acetylfentanyl both belong to the fentanyl analog family, they are distinct compounds with unique chemical properties and pharmacological profiles. Their differences lie primarily in their acyl side chains, which directly affect their receptor activity and potency.

• Different acyl substitutions
  Valerylfentanyl features a valeryl (five-carbon) chain, while Acetylfentanyl contains a shorter acetyl (two-carbon) group. This structural variance results in different potencies and metabolic behaviors.

• Valerylfentanyl is less potent than Fentanyl but more than Acetylfentanyl
  Acetylfentanyl is typically considered weaker than Valerylfentanyl in terms of μ-opioid receptor activation, although both are potent relative to morphine.

• Different metabolic pathways
  Because of their structural distinctions, each analog is broken down differently by liver enzymes, which affects their duration and toxicity in laboratory models.

• Separate analytical detection requirements
  Though similar, their chemical signatures differ enough that distinct calibration standards are often needed in LC-MS/MS detection methods.

• Different scheduling and regulatory statuses
  Acetylfentanyl is explicitly listed as a controlled substance in several countries, while Valerylfentanyl may fall under analog laws or remain unscheduled.

• Not interchangeable in research applications
  Each analog is used to investigate specific binding behaviors, SAR variations, or forensic signatures and should be handled accordingly.