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  2. 4-Piperidone - Wikipedia

    en.wikipedia.org/wiki/4-Piperidone

    Substituted and dehydro derivatives of 4-piperidinone are intermediates in alkaloid syntheses. [1] The N-protonated derivative is typically isolated as the hydrate (HO) 2 C(CH 2) 4 NH + 2. [2] It is a List I chemical in the United States as it is a precursor to fentanyl. Fentanyl synthesis using the Gupta method starting from 4-piperidone

  3. N-Phenethyl-4-piperidinone - Wikipedia

    en.wikipedia.org/wiki/N-Phenethyl-4-piperidinone

    N-Phenethyl-4-piperidinone (NPP) is a derivative of 4-piperidinone with the molecular formula C 13 H 17 NO. It is used as an intermediate in the manufacture of chemicals and pharmaceutical drugs such as fentanyl .

  4. DEA list of chemicals - Wikipedia

    en.wikipedia.org/wiki/DEA_list_of_chemicals

    N-Phenethyl-4-piperidone (NPP) fentanyl: Iodine: methamphetamine, amphetamine: Ergocristine and its salts lysergic acid diethylamide: N-(1-benzylpiperidin-4-yl)-N-phenylpropionamide (benzylfentanyl) and its salts fentanyl: N-phenylpiperidin-4-amine(4-anilinopiperidine; N-phenyl-4-piperidinamine; 4-AP), its amides, its carbamates, and its salts ...

  5. Two Indian companies indicted in US for importing ingredients ...

    www.aol.com/news/two-indian-companies-indicted...

    One indictment said that in October 2024 video calls with an undercover agent posing as a fentanyl manufacturer, Lathiya agreed to sell 20 kilograms of the precursor chemical 1-boc-4-piperidone ...

  6. Fentanyl - Wikipedia

    en.wikipedia.org/wiki/Fentanyl

    Fentanyl is a 4-anilopiperidine class ... The original synthesis as patented in 1964 by Paul Janssen involves the synthesis of benzylfentanyl from N-Benzyl-4-Piperidone.

  7. ‘One of the larger mysteries I’ve ever seen’: Industrial ...

    www.aol.com/news/one-larger-mysteries-ve-ever...

    BTMPS was found in the fentanyl supply at all nine locations over four months, with more BTMPS than fentanyl in the product in most cases and an average percentage by mass of 8.6% BTMPS. Some ...

  8. List of fentanyl analogues - Wikipedia

    en.wikipedia.org/wiki/List_of_fentanyl_analogues

    This is a list of fentanyl analogues (sometimes referred to as Fentalogs), [1] [2] [3] including both compounds developed by pharmaceutical companies for legitimate medical use, and those which have been sold as designer drugs and reported to national drug control agencies such as the DEA, or transnational agencies such as the EMCDDA and UNODC.

  9. 4-ANPP - Wikipedia

    en.wikipedia.org/wiki/4-ANPP

    4-ANPP, also known as 4-anilino-N-phenethylpiperidine (4-ANPP), 4-aminophenyl-1-phenethylpiperidine, or despropionyl fentanyl, [3] is a direct precursor to fentanyl and acetylfentanyl. It is commonly found as a contaminant in samples of drugs containing fentanyl, which may include samples represented by the supplier as heroin or other opioids ...