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    2-MA molecular structure

    2-MA Stats & Data

    Ortetamine 2-methylamphetamine
    NPS DataHub
    MW149.24
    FormulaC10H15N
    CAS5580-32-5
    IUPAC1-(2-methylphenyl)propan-2-amine
    SMILESCC(N)Cc1ccccc1C
    InChIKeyZEMQBDFHXOOXLY-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 Stimulant
    Half-Life Estimated 6 – 10 h (no human pharmacokinetic studies located; value extrapolated from amphetamine analogues; treat as unknown).

    Receptor Profile

    Receptor Actions

    Other
    Dopamine-norepinephrine releasing agent (DNRA)

    Effect Profile

    Curated
    Stimulant 5.4

    Strong anxiety/jitters and euphoria with mild stimulation and focus

    Stimulation / Energy×3
    5
    Euphoria / Mood Lift×2
    9
    Focus / Productivity×2
    5
    Anxiety / Jitters×1
    10

    Tolerance & Pharmacokinetics

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    Half-Life
    Estimated 6 – 10 h (no human pharmacokinetic studies located; value extrapolated from amphetamine analogues; treat as unknown).
    Addiction Potential
    Moderate-to-high. As with other dopaminergic stimulants, repeated use may produce psychological dependence, compulsive redosing, and an amphetamine-like withdrawal (fatigue, dysphoria, anhedonia).

    Tolerance Decay

    Full tolerance 3d Half tolerance 7d Baseline ~30d

    Tolerance to stimulant effects tends to build quickly with consecutive-day use and decays over 1–6 weeks with abstinence; estimates are based on stimulant-class patterns and user reports (anecdotal). Avoid back-to-back days to keep tolerance lower and reduce compulsive redosing risk.

    Cross-Tolerances

    amphetamine
    70% ●○○
    methamphetamine
    60% ●○○
    cathinones
    50% ●○○
    other dopaminergic stimulants
    40% ●○○

    Legal Status

    Country Status Notes
    United States a Schedule II Controlled Substance

    Harm Reduction

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    - Potency appears lower than dextroamphetamine; limited user reports suggest roughly one-tenth by weight (anecdotal), so conservative dosing is essential to avoid accidental overuse.

    - Cardiovascular strain (tachycardia, hypertension) and hyperthermia are established risks with amphetamine-class stimulants; avoid hot environments, take cooling breaks, and do not combine with other stimulants.

    - MAOI combinations are hazardous and can precipitate hypertensive crisis; do not combine with prescription MAOIs or plant MAOIs (e.g., harmala/ayahuasca).

    - Intranasal use can damage nasal tissues; if snorting, crush finely, use your own clean straw, rinse with saline, and give your nose breaks to reduce septal injury risk. Oral dosing is generally less locally harmful.

    - Rectal dosing increases efficiency and can intensify effects; dissolve in a small volume of clean water, use lubrication, and avoid sharp applicators to reduce mucosal injury.

    - Sleep disruption and residual stimulation are common; plan dosing to allow a full night’s sleep and avoid multi-day binges, which raise risks of paranoia and psychosis.

    - Hydration: sip fluids regularly and do not overconsume water; aim for small, steady intake and include electrolytes during prolonged activity to avoid hyponatremia.

    - Reagent testing can help verify stimulant presence: with Marquis, amphetamines typically show yellow–orange to brown reactions; use multiple reagents and consider lab drug checking where available.

    - People with cardiovascular disease, hypertension, arrhythmias, or significant anxiety disorders should avoid use; these conditions increase the likelihood of adverse events with stimulants.

    - Bruxism and jaw clenching are common; gum or a soft mouthguard can reduce dental strain.

    - Because pharmacokinetics are uncharacterized in humans, avoid stacking doses; allow at least 4–6 hours between small test doses to assess duration and intensity before considering any redose.

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