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Library methoxyacetylfentanyl Methoxyacetyl-fentanyl is a highly potent synthetic opioid and fentanyl analogue classified as a depressant research chemical. Like other f…

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Library methyldihydromorphine

Library methylenedioxynitazene Methylenedioxynitazene (3',4'-Methylenedioxynitazene) is a benzimidazole derivative which has been sold as a designer drug over the interne…

Library metodesnitazene Metodesnitazene is a benzimidazole derivative with opioid effects, though unlike related compounds such as metonitazene and etodesnitazene…

Library metonitazene Metonitazene is classified as Opioid. It belongs to the Nitazene (synthetic opioid) chemical class.

Library morpheridine Is a 4-Phenylpiperidine derivative that is related to Pehidine. It is roughly 4x as potent as the parent compound, does not cause convulsio…

Library morphine Morphine is the principal alkaloid of the opium poppy (Papaver somniferum) and the prototypical opioid analgesic. First isolated by Friedri…

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Library morphinenoxide Morphine-N-oxide (genomorphine) is an active opioid metabolite of morphine. Morphine itself, in trials with rats, is 11–22 times more poten…

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Library mt45 A synthetic opioid drug that was rumoured to be roughly 80% the potency of Morphine orally. Was created by Dainippon Pharmaceutical in the…

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Library n2cfentanyl The N-(2C)-fentanyl series, is the 2C family coupled with fentanyl.

Library nalbuphine Nalbuphine, sold under the brand names Nubain among others, is an opioid analgesic which is used in the treatment of pain. It is given by i…

Library naloxone Naloxone (commonly sold under the brand names Narcan and Evzio) is a synthetic mu-opioid antagonist of the morphinan chemical class that is…

Library naltrexone Naltrexone is an opiate antagonist used in the treatment of opiate and alcohol addiction. It blocks the effects of opiates so that if a use…

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Library ndesethyl_protonitazene

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Library ndesethyletonitazene

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Library ndesethylisotonitazene N-Desethylisotonitazene (norisotonitazene) is a benzimidazole opioid with potent analgesic effects which has been sold as a designer drug.…

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Library ndesethylmetonitazene

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Library ndesmethyl_bromadol

Library nicomorphine Nicomorphine is a semi-synthetic opioid agonist of the morphine family, classified as both an opioid and a depressant. It is estimated to b…

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Library nndimethyl_etonitazene N,N-Dimethyl etonitazene has been identified by trusted drug-checking services in 2 published analytical results during 2025, 2026. These w…