butyrfentanyl<\/a> and a structural isomer of 4-Fluorobutyrfentanyl and has been sold online as a designer drug.<\/p>\nIt is closely related to 4-fluoro fentanyl, which has an EC50 value of 4.2 nM for the human ?-opioid receptor.<\/p>\n
<\/p>\n
DESCRIPTION
\nNames: 4-Fluoroisobutyrfentanyl para-fluoroisobutyrfentanyl, N-(4-fluorophenyl)-N-(1-phenethylpiperidin 4-yl)isobutyramide pFIBF, 4-FIBF,<\/p>\n
IUPAC name: N-(4-fluorophenyl)-N-(1-phenethylpiperidin-4-isobutyrate<\/p>\n
Substance group: Other substances<\/p>\n
This substance is included in Schedule I of the 1961 Single Convention on Narcotic Drugs.<\/p>\n
InChI
\nInChI=1S\/C23H29FN2O\/c1-18(2)23(27)26(21-10-8-20(24)9-11-21)22-13-16-25(17-14-22)15-12-19-6-4-3-5-7-19\/h3-11,18,22H,12-17H2,1-2H3<\/p>\n
InChI Key: OZDOSQNUJIXEOR-UHFFFAOYSA-N SMILES: O=C(C(C)C)N(C1=CC=C(F)C=C1)C2CCN(CCC3=CC=CC=C3)CC2<\/p>\n
Formula: C23H29FN2O<\/p>\n
Molar mass: 368.50 g\u00b7mol?1<\/p>\n
Side effects
\nSide effects of fentanyanaloguesgs are similar to those of fentanyl itself, which include itching, nausea and potentially serious respiratory depression, which can be life-threatening.<\/p>\n
Fentanyl analogues have killed hundreds of\u00a0people throughout Europe and the former Soviet republics since the most recent resurgence in use began in Estonia in the early 2000s, and novel derivatives continue to appear.<\/p>\n
4-fluoroisobutyrfentanyl powder for sale<\/strong><\/p>\n<\/p>\n
Legality
\n4-Fluoroisobutyrylfentanyl is a Schedule I controlled substance in the United States. In the UK, it is a Class A drug. In Canada, it is a Schedule I drug.<\/p>\n
See also
\n3-Methylbutyrfentanyl
\n3-Methylfentanyl
\n4-Fluorofentanyl
\n?-Methylfentanyl
\nAcetylfentanyl
\nAcrylfentanyl
\nFuranylfentanyl
\nList of fentanyl analogues
\nFentanyl analogues, in which the N-[1-(2-phenethyl)-4-piperidyl]aniline nucleus has additional radicals, either alone or in combination, attached as follows:<\/p>\n
(a) acetyl, propionyl, butenyl or bbutanolradical, attached to the aniline nitrogen atom:<\/p>\n
(b) 1 or more alkyl radicals, with up to 10 carbon atoms in total, attached to the ethyl moiety:<\/p>\n
(c) any combination of up to 5 alkyl radicals and\/or alkoxy radicals (each with up to 6 carbon atoms, including cyclic radicals) and\/or halogen radicals, attached to each of the benzene rings<\/p>\n
<\/p>\n
Fentanyl-related substances include any substance not otherwise controlled in any schedule.\u0085That is structurally related to fentanyl by one or more of the following modifications:<\/p>\n
Replacement of the phenyl portion of the phenyl group by any monocycle, whether or not further substituted in or on the monocycle;
\nsubstitution in or on the phenyl group with alkyl, alkenyl, alkoxyl, hydroxyl, halo, haloalkyl, amino or nitro groups;
\nsubstitution in or on the piperidine ring with alkyl, alkenyl, alkoxyl, ester, ether, hydroxyl, halo, haloalkyl, amino or nitro groups;
\nreplacement of the aniline ring with any aromatic monocycle whether or not further substituted in or on the aromatic monocycle; and\/or
\nreplacement of the N-propionyl group by another acyl group.<\/p>\n