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    5-APDI molecular structure

    5-APDI Stats & Data

    Iap 2-api 5-iap Indanametamine Indanylamphetamine
    NPS DataHub
    MW175.27
    FormulaC12H17N
    CAS13396-94-6
    IUPAC1-(2,3-dihydro-1H-inden-5-yl)propan-2-amine
    SMILESCC(N)Cc1ccc2CCCc2c1
    InChIKeyQYVNZHBQYJRLEX-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 Amphetamine
    Psychoactive Class Psychedelic / Stimulant
    Half-Life Unknown in humans; community estimates suggest ~4–6 h with active metabolites possibly extending effects.

    Receptor Profile

    Receptor Actions

    Inhibitors
    Dopamine reuptake inhibitor
    Norepinephrine reuptake inhibitor
    Other
    Serotonin releasing agent (selective)

    Effect Profile

    Curated + 16 Reports
    Psychedelic 2.5

    Mild auditory effects with low visuals and body load

    Visual Intensity×3
    3
    Headspace Depth×3
    0
    Auditory Effects×1
    4
    Body Load / Somatic Effects×1
    3
    Empathogen 5.1

    Moderate stimulation with mild empathy, euphoria, and sensory enhancement

    Empathy / Social Openness×3
    5
    Euphoria / Mood Elevation×2
    5
    Stimulation×1
    6
    Sensory Enhancement×1
    5
    Stimulant 3.5

    Moderate anxiety/jitters with mild stimulation and euphoria

    Stimulation / Energy×3
    5
    Euphoria / Mood Lift×2
    5
    Focus / Productivity×2
    0
    Anxiety / Jitters×1
    7

    Tolerance & Pharmacokinetics

    drugs.wiki
    Half-Life
    Unknown in humans; community estimates suggest ~4–6 h with active metabolites possibly extending effects.
    Addiction Potential
    Low to moderate. Primarily psychological craving reported; physical dependence not described. Rapid tolerance limits compulsive redosing.

    Tolerance Decay

    Full tolerance 1d Half tolerance 7d Baseline ~21d

    Rapid acute tolerance is frequently reported with SRAs; spacing of several weeks is prudent by analogy to MDMA. Estimates are heuristic and based on anecdotal patterns rather than formal PK/PD studies.

    Cross-Tolerances

    MDMA
    60% ●○○
    MDA
    60% ●○○
    Other serotonergic empathogens
    50% ●○○

    Experience Report Analysis

    Erowid
    16 Reports
    2003–2007 Date Range
    1 With Age Data
    17 Effects Detected

    Demographics

    Gender Distribution

    Age Distribution

    Reports Over Time

    Effect Analysis

    Erowid

    Effects aggregated from 16 experience reports (16 Erowid)

    16 Reports
    17 Effects Detected
    8 Positive
    6 Adverse
    3 Neutral

    Effect Sentiment Distribution

    Confidence Distribution

    Positive Effects 8

    Euphoria 62.5% 70%
    Stimulation 62.5% 70%
    Empathy 50.0% 70%
    Color Enhancement 37.5% 70%
    Introspection 31.2% 70%
    Focus Enhancement 31.2% 70%
    Body High 31.2% 70%
    Music Enhancement 25.0% 70%

    Adverse Effects 6

    Confusion 37.5% 70%
    Anxiety 31.2% 70%
    Headache 25.0% 70%
    Pupil Dilation 25.0% 70%
    Nausea 25.0% 70%
    Jaw Clenching 18.8% 70%

    Dosage Distribution

    Dose distribution from experience reports

    Median: 45.0 mg IQR: 30.0–50.0 mg n=11

    Real-World Dose Distribution

    62K Doses

    From 21 individual dose entries

    Oral (n=16)

    Median: 32.5mg 25th: 17.5mg 75th: 46.25mg 90th: 50.0mg
    mg/kg median: 0.552 mg/kg 75th: 0.663

    Form / Preparation

    Most common forms and preparations reported

    Body-Weight Dosing

    Dose relative to body weight from reports with weight data

    Median: 0.63 mg/kg IQR: 0.429–0.668 mg/kg n=11

    Redose Patterns

    Redosing behavior across 14 reports

    28.6% Redosed
    1.4 Avg Doses
    150m Median Interval

    Harm Reduction

    drugs.wiki

    Identity/mislabelling risk: “IAP/5‑IAP/5‑APDI” has been inconsistently named and sometimes mis-sold; historical misrepresentation (e.g., 5‑IAI fiasco) underscores the need for GC/MS drug checking over reagent kits alone. Purity and identity should be verified where possible. Slow onset and long tail make premature redosing risky; tolerance can build intra‑session, leading to greater side‑effects with little added benefit. As a serotonergic releaser, it carries serotonin syndrome risk—especially with MAOIs, SSRIs/SNRIs, tramadol/meperidine, linezolid, and other SRAs. Hyperthermia is possible in warm, crowded settings; take cooling breaks, avoid vigorous exertion, and maintain light, spaced fluids. Conversely, overhydration can cause hyponatraemia; sip small amounts regularly and consider electrolytes rather than rapid overconsumption of water. GI side‑effects (nausea, cramping, diarrhoea) are common with serotonergic drugs given the high proportion of peripheral 5‑HT in the gut. Cardiovascular strain (tachycardia, sweating) and bruxism are frequently reported; avoid combining with other stimulants. Insufflation increases local irritation; avoid repeated lines. Intravenous use is strongly discouraged due to unknown solubility/excipients and lack of clinical formulation. Space sessions widely (several weeks) to reduce tolerance and mood after‑effects, by analogy to MDMA‑like agents. Use a thermometer if active for long periods; if overheating or severe agitation/confusion/tremor/clonus occur, seek medical help; benzodiazepines and external cooling are standard first‑aid while awaiting care.

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