α Methylfentanyl

ID: Reference1877

C₂₃H₃₀N₂O

N-Phenyl-N-[1-(1-phenyl-2-propanyl)-4-piperidinyl]propanamide; N-(1-(1-Methyl-2-phenylethyl)-4-piperidinyl)-N-phenylpropanamide; N-Phenyl-N-[1-(1-phenylpropan-2-yl)piperidin-4-yl]propanamide; Propanamide, N-[1-(1-methyl-2-phenylethyl)-4-piperidinyl]-N-phenyl-; 1-(1-Methyl-2-phenylethyl)-4-(N-propanilido)piperidine

Benzylfentanyl

ID: Reference1917

C₂₁H₂₆N₂O

N-(1-Benzyl-4-piperidyl)-N-phenyl-propanamide; N-(1-Benzylpiperidin-4-yl)-N-phenylpropanamide; Propanamide, N-phenyl-N-[1-(phenylmethyl)-4-piperidinyl]-; N-(1-Benzylpiperidin-4-yl)-N-phenylpropionamide; 1-Benzyl-4-(N-phenylpropionamido)piperidine; Propanamide, N-phenyl-N-(1-benzyl-4-piperidinyl)-; N-(1-Benzyl-4-piperidyl)-propionanilide

β-Hydroxyfentanyl

ID: Reference1918

C₂₂H₂₈N₂O₂

N-[1-(2-Hydroxy-2-phenylethyl)-4-piperidinyl]-N-phenylpropanamide; N-[1-(2-Hydroxy-2-phenylethyl)piperidin-4-yl]-N-phenylpropanamide; Propanamide, N-[1-(2-hydroxy-2-phenylethyl)-4-piperidinyl]-N-phenyl-; N-[1-(2-Hydroxy-2-phenyl-ethyl)-piperidin-4-yl]-N-; N-[1-(2-Hydroxy-2-phenylethyl)-4-piperidinyl]-N-phenylpropanamide

cis-Mefentanyl

ID: Reference2003

C₂₃H₃₀N₂O

N-[(3S,4R)-3-Methyl-1-(2-phenylethyl)piperidin-4-yl]-N-phenylpropanamide; N-[(3S,4R)-3-Methyl-1-(2-phenylethyl)-4-piperidinyl]-N-phenylpropanamide; Propanamide, N-[(3S,4R)-3-methyl-1-(2-phenylethyl)-4-piperidinyl]-N-phenyl-; 3-Methylfentanyl

Despropionyl p-fluoro fentanyl

ID: Reference2024

C₁₉H₂₃FN₂

N-(4-Fluorophenyl)-1-(2-phenylethyl)-4-piperidinamine; N-(4-Fluorophenyl)-1-phenethylpiperidin-4-amine; N-(4-Fluorophenyl)-1-(2-phenylethyl)-4-piperidinamine; 4-Piperidinamine, N-(4-fluorophenyl)-1-(2-phenylethyl)-

Fentanyl

ID: Reference2110

C₂₂H₂₈N₂O

N-Phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide; Duragesic; Fentanest; Fentanil; Fentanylum; Phentanyl; Durogesic

ω-Hydroxynorfentanyl

ID: Reference2158

C₁₄H₂₀N₂O₂

3-Hydroxy-N-phenyl-N-piperidin-4-ylpropanamide; Propanamide, 3-hydroxy-N-phenyl-N-4-piperidinyl-

Remifentanyl

ID: Reference2284

C₂₀H₂₈N₂O₅

Methyl 1-(3-methoxy-3-oxopropyl)-4-(N-propanoylanilino)piperidine-4-carboxylate; Remifentanil; 1-Piperidinepropanoic acid, 4-(methoxy-carbonyl)-4-[(1-oxopropyl)phenylamino], methyl ester; 4-Carboxy-4-(N-phenylpropionamido)-1-piperidinepropionic acid dimethyl ester; Methyl 1-(3-methoxy-3-oxopropyl)-4-(N-phenylpropanamido)piperidine-4-carboxylate; Methyl 1-(3-methoxy-3-oxopropyl)-4-[phenyl(propanoyl)amino]piperidine-4-carboxylate

Nor-3-methylfentanyl

ID: Reference2471

C₁₅H₂₂N₂O

N-(3-Methyl-4-piperidinyl)-N-phenylpropanamide; Propanamide, N-(3-methyl-4-piperidinyl)-N-phenyl-; 3-Methylfentanyl metabolite; (+/-)-cis-3-Methyl norfentanil?; Normefentanyl

Norfentanyl

ID: Reference2486

C₁₄H₂₀N₂O

N-Phenyl-N-piperidin-4-ylpropanamide; 4-(N-Propionylanilino)piperidine; Propanamide, N-phenyl-N-4-piperidinyl-; N-Phenyl-N-4-piperidinylpropanamide; N-Phenyl-N-(4-piperidyl)propanamide; N-Phenyl-N-4-piperidinylpropionamide; N-Phenyl-N-piperidin-4-ylpropionamide

Ohmefentanyl

ID: Reference2490

C₂₃H₃₀N₂O₂

N-[1-(2-Hydroxy-2-phenylethyl)-3-methylpiperidin-4-yl]-N-phenylpropanamide; β-Hydroxy-3-methylfentanyl; Propanamide, N-[1-(2-hydroxy-1-methyl-2-phenylethyl)-3-methyl-4-piperidinyl]-N-phenyl-; OMF

Butyryl fentanyl

ID: Reference4862

C₂₃H₃₀N₂O

N-Phenyl-N-[1-(2-phenylethyl)-4-piperidinyl]butanamide; Butyrfentanyl; N-Phenyl-N-(1-phenethyl-4-piperidinyl)butanamide; N-Phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]butanamide ; Butanamide, N-phenyl-N-[1-(2-phenylethyl)-4-piperidinyl]-; Methyl-3-fentanyl