ChemAbout

ChemAbout is a B2B platform where chemical buyers and suppliers discover each other.

Post a purchase requestList your products (for suppliers)
© 2026 ChemAbout
Compound Index|Demand Board|Insights|Exhibitions|Compliance|Help Center|Privacy Policy|Terms of Service|[email protected]
Home/Compounds/Pharmaceutical Intermediate/4-anilinopiperidine
C11H16N2
176.26 g/mol
Pharmaceutical IntermediateWarning

N-Phenylpiperidin-4-amine

CAS23056-29-3EC245-402-9
Category
Pharmaceutical Intermediate
Compound Class
Amine
Primary Use
Pharmaceutical Intermediate

N-Phenylpiperidin-4-amine is a chemical compound used as a pharmaceutical intermediate. Its structure contains an aromatic ring and an amine group, contributing to its utility in the synthesis of various active pharmaceutical ingredients.

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:CN Precursor Chemicals Cat.2UN 1988 Convention Table I PrecursorsUS DEA List I Chemicals

CAS 23056-29-3

Related Compounds

ReferenceSame Category

2-chloro-4-methyl-5-nitropyridine

CAS23056-33-9

pharmaceutical intermediate

ReferenceSame Category

2-Chloro-4-nitropyridine

CAS23056-36-2

pharmaceutical intermediate

ReferenceSame Category

2-Chloro-4-methyl-3-nitropyridine

CAS23056-39-5

pharmaceutical intermediate

ReferenceSame Category

2-Chloro-5-methyl-3-nitropyridine

CAS23056-40-8

pharmaceutical intermediate

Referencesame scaffold

Tert-Butyl 4-(3-fluoroanilino)piperidine-1-carboxylate

CAS679409-18-8

pharmaceutical intermediate

Referencesame scaffold

1-N-Boc-4-(Phenylamino)piperidine

CAS125541-22-2

pharmaceutical intermediate

Referencesame scaffold

Norfentanyl

CAS1609-66-1

pharmaceutical raw material

Safety Reference

Harmful
Harmful
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Regulatory Compliance3
  • CN Precursor Chemicals Cat.2CNRegulation
    Listed· listed since 2024-09-01Source
  • UN 1988 Convention Table I PrecursorsGlobalInternational Convention
    Listed· listed since 2022-11-23Source
  • US DEA List I ChemicalsUSRegulation
    Listed· listed since 2020-05-15Source

Customs Tariff Classification

The international HS code for N-Phenylpiperidin-4-amine (CAS 23056-29-3) is 2933.39.

HS code (international, 6-digit)

2933.39

EU CN code (8-digit)

2933 39 99

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-phenylpiperidin-4-amine

InChIKey

LKRMTUUCKBQGFO-UHFFFAOYSA-N

SMILES

C1CNCCC1NC2=CC=CC=C2

Synonyms (15)
  • FENTANYL CITRATE IMPURITY F (EP IMPURITY)
  • FENTANYL IMPURITY I {EP IMPURITY]
  • 4-(phenylamino)piperidine
  • 4-Piperidinamine, N-phenyl-
  • 4-anilinopiperidine
  • Despropionyl norfentanyl
  • FENTANYL CITRATE IMPURITY F
  • N-(PIPERIDIN-4-YL)ANILINE
  • N-Phenyl-4-piperidinamine
  • N-Phenylpiperidin-4-amine
  • Piperidine, 4-anilino-
  • n-phenyl-n-(4-piperidyl)amine