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    2C-P-NBOMe molecular structure

    2C-P-NBOMe Stats & Data

    NPS DataHub
    MW343.47
    FormulaC21H29NO3
    CAS1391489-07-8
    IUPAC2-(2,5-dimethoxy-4-propylphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine
    SMILESCCCc1cc(OC)c(CCNCc2ccccc2OC)cc1OC
    InChIKeyQHEBYIJRKGDFGH-UHFFFAOYSA-N
    Phenethylamines; 2020/1. Von 2-Phenethylamin abgeleitete Verbindungen; 2021/1. Von 2-Phenethylamin abgeleitete Verbindungen; 2022/1. Von 2-Phenethylamin abgeleitete Verbindungen
    Chemical Class Phenethylamine
    Psychoactive Class Psychedelic
    Half-Life Unknown in humans. NBOMe clinical PK data are scarce; related 25X compounds produce 6–12 h effects with lingering after‑effects, implying active CNS exposure beyond peak but not defining elimination half‑life.

    Effect Profile

    Curated
    Psychedelic 6.5

    Strong visuals with mild headspace, auditory effects, and body load

    Visual Intensity×3
    10
    Headspace Depth×3
    4
    Auditory Effects×1
    4
    Body Load / Somatic Effects×1
    4

    Tolerance & Pharmacokinetics

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    Half-Life
    Unknown in humans. NBOMe clinical PK data are scarce; related 25X compounds produce 6–12 h effects with lingering after‑effects, implying active CNS exposure beyond peak but not defining elimination half‑life.
    Addiction Potential
    Low. Compulsive use appears uncommon for NBOMes; psychological habituation is possible with frequent use. Evidence base remains limited and largely anecdotal.

    Tolerance Decay

    Full tolerance 1d Half tolerance 7d Baseline ~14d

    As with serotonergic psychedelics, acute tolerance develops rapidly after a single session and decays over 1–2 weeks; cross‑tolerance within serotonergic psychedelics is expected. Estimates are anecdotal from NBOMe/2C‑x communities.

    Cross-Tolerances

    LSD
    70% ●○○
    Psilocybin
    60% ●○○
    Other NBOMes
    90% ●●○
    2C‑x phenethylamines
    50% ●○○
    DOx phenethylamines
    40% ●○○

    Harm Reduction

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    • Extreme potency: NBOMes are active at sub‑milligram doses; dosing errors of tens of micrograms can cause severe toxicity. Avoid eyeballing; use a 0.001 g (1 mg) scale and volumetric dosing. Erowid and TripSit emphasize microgram‑level potency and dosing caution for the NBOMe series.

    • Preferred ROA is buccal/sublingual; swallowed (oral) doses are often poorly active due to first‑pass metabolism, while insufflation/vaporization produce faster, harsher onsets and appear over‑represented in adverse events. Community sources consistently report poor oral activity and recommend buccal administration.

    • Medical risks: NBOMes have been linked to severe vasoconstriction, hypertension, agitation, seizures, and deaths at what users considered “normal” recreational doses; EU‑level risk assessment documented confirmed toxicities with 25I‑NBOMe and highlighted risks for the class. Seek urgent care for severe chest pain, bluish/cold extremities, or seizures.

    • Avoid combinations: TripSit categorizes NBOMes with stimulants (amphetamines/cocaine/MDMA) as unsafe due to additive cardiovascular strain and higher seizure risk; tramadol is unsafe (seizure threshold); MAOIs are caution due to potentiation and unpredictability; cannabis can unpredictably potentiate psychedelics.

    • Mis‑sold risk: NBOMes have frequently been sold as LSD or 2C‑B; use multiple reagents and do not rely on taste. If Ehrlich (indole) test is negative on blotter, LSD is unlikely; NBOMe often shows no Ehrlich reaction. Extract blotter into alcohol before testing to avoid paper/ink artefacts.

    • Reagent pointers: NBOMes can show yellow→green reactions with Marquis/Mecke/Mandelin depending on the specific 25X; they are typically Ehrlich negative (unlike LSD). Use a panel (e.g., Marquis, Mecke/Mandelin, Ehrlich) and interpret carefully.

    • Plan for a long experience and avoid redosing: plateaus can be protracted with lingering stimulation after visuals fade; redosing has precipitated anxiety and medical events in reports.

    • Form matters: substances may be sold as freebase or HCl, and some products are pre‑complexed (e.g., HPBCD) to increase mucosal absorption; bioavailability and potency can differ by preparation—dose conservatively.

    • Environment: due to stimulation and vasoconstriction, avoid overheating, heavy exertion, and additional vasoconstrictors (nicotine, high caffeine); maintain hydration with electrolytes but avoid overhydration. This is inferred harm‑reduction from reported adverse signs and TripSit stimulant‑combination cautions.

    • Emergency calming: benzodiazepines can reduce agitation and seizure risk but will largely abort the experience; combining recreationally is discouraged due to respiratory/CNS depression risks if other depressants are present. Use only with medical oversight or clear need. (Generalized from TripSit interaction notes and NBOMe case narratives.)

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