Similar to 3-メチルブチルフェンタニル

4-Methoxybutyrfentanyl

Isofentanyl

Isobutyrylfentanyl

4-Fluoroisobutyrfentanyl

4-Methylphenethylacetylfentanyl

Orthofluorofentanyl

Cyclopentylfentanyl

2,2'-Difluorofentanyl

4-Chloroisobutyrylfentanyl

4-Bromofentanyl

R-30490

Acetoxymethylketobemidone

Tetrahydrofuranylfentanyl

AD-1211

U-48800

Acrylfentanyl

Acetoxyketobemidone

Oxpheneridine

Cyclopropylfentanyl

Tetramethylcyclopropylfentanyl

Valerylfentanyl

2F-QMPSB

3-Chloro-PCP

3-Fluoro-PCP

3-Methyl-PCP

AM-1248

MDPCP

SR-16435