C21H26N2O
322.4 g/mol
OtherDanger
Benzylfentanyl
CAS1474-02-8EC216-014-7
Category
Other
Compound Class
Amide
Primary Use
research compound
Benzylfentanyl is a fentanyl analog that was initially listed as a Schedule I controlled substance in the United States in 1985 due to its structural similarity to fentanyl. It was removed from the list in 2010 after research demonstrated it has minimal opioid activity, with a binding affinity at the mu opioid receptor approximately 200 times weaker than fentanyl.
research compound for opioid receptor studies
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Controlled substances
Substances on this list are tightly controlled under chemical-weapons or precursor regulations. ChemAbout does not facilitate their procurement; this page is a compliance reference only.
Relevant lists:US DEA List I Chemicals
CAS 1474-02-8
Related Compounds
ReferenceSame Category
Allyl isocyanate
CAS1476-23-9
research chemical
ReferenceSame Category
Methyl 6-hydroxy-5-(trifluoromethyl)pyridine-3-carboxylate
CAS1476762-59-0
research compound
ReferenceSame Category
5-Chloro-2-fluoropyridine
CAS1480-65-5
Research chemical
ReferenceSame Category
3,3'-Dithiobis(1H-1,2,4-triazole)
CAS14804-01-4
research compound
Referencesame scaffold
N-phenyl-1-(phenylmethyl)-4-piperidinamine
CAS1155-56-2
research compound
Safety Reference
Danger
H301Toxic if swallowed
H412Harmful to aquatic life with long lasting effects
Regulatory Compliance1
- US DEA List I ChemicalsUSRegulation
Customs Tariff Classification
The international HS code for Benzylfentanyl (CAS 1474-02-8) is 2933.34.
HS code (international, 6-digit)
2933.34
EU CN code (8-digit)
2933 34 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
N-(1-benzylpiperidin-4-yl)-N-phenylpropanamide
InChIKey
POQDXIFVWVZVML-UHFFFAOYSA-N
SMILES
CCC(=O)N(C1CCN(CC1)CC2=CC=CC=C2)C3=CC=CC=C3
Synonyms (14)
- R-4129
- Benzylfentanyl
- FENTANYL CITRATE IMPURITY H
- FENTANYL IMPURITY K
- N-Benzylfentanyl