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N-(1-Phenethyl-piperidin-4-yl)-N-phenyl-acetamide

N-(1-Phenethyl-piperidin-4-yl)-N-phenyl-acetamide structure

CAS No.: 3258-84-2

Chemical Name:: N-(1-Phenethyl-piperidin-4-yl)-N-phenyl-acetamide

Synonyms: Acetyl Fentanyl;Acetylfentanyl, AF;Fentanyl Impurity C;Fentanyl acetyl analog;Acetyl fentanyl solution;Fentanyl Related CoMpound G;Fentanyl Citrate Impurity C;Fentanyl Citrate EP Impurity C;Fentanyl USP Related Compound G;N-(1-Phenethyl-4-piperidylacetanilide

CBNumber:: CB3698442

Molecular Formula:: C21H26N2O

Molecular Weight:: 322.44

MDL Number:: MFCD07369982

MOL File:: 3258-84-2.mol

Last updated:2026-09-12 18:52:10

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N-(1-Phenethyl-piperidin-4-yl)-N-phenyl-acetamide Properties

Melting point	93-95C
Boiling point	453.8±38.0 °C(Predicted)
Density	1.100±0.06 g/cm3(Predicted)
Flash point	9℃
storage temp.	Controlled Substance, -20°C Freezer
solubility	DMSO (Slightly), Methanol (Slightly)
pka	8.92±0.10(Predicted)
form	Solid
color	Off-White
Major Application	forensics and toxicology
InChI	1S/C21H26N2O/c1-18(24)23(20-10-6-3-7-11-20)21-13-16-22(17-14-21)15-12-19-8-4-2-5-9-19/h2-11,21H,12-17H2,1H3
InChIKey	FYIUUQUPOKIKNI-UHFFFAOYSA-N
SMILES	O=C(C)N(C1CCN(CCC2=CC=CC=C2)CC1)C3=CC=CC=C3
FDA UNII	6DZ28538KS
UNSPSC Code	41116107
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS02,GHS06,GHS08
Signal word	Danger
Hazard statements	H225-H301+H311+H331-H370
Precautionary statements	P210-P260-P280-P301+P310-P311-P302+P352+P312-P304+P340+P312-P370+P378-P403+P235
target organs	Eyes,Central nervous system
Hazard Codes	Xn,Xi,T,F
Risk Statements	22-36/37/38-39/23/24/25-23/24/25-11
Safety Statements	26-45-36/37-16-7
RIDADR	UN1230 - class 3 - PG 2 - Methanol, solution
WGK Germany	1
HS Code	2933399090
Storage Class	3 - Flammable liquids
Hazard Classifications	Acute Tox. 3 Dermal Acute Tox. 3 Inhalation Acute Tox. 3 Oral Flam. Liq. 2 STOT SE 1
DEA Controlled Substances	CSCN: 9821 CSA SCH: Schedule I NARC: Yes

N-(1-Phenethyl-piperidin-4-yl)-N-phenyl-acetamide price More Price(2)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	A-129	Acetyl fentanyl solution 50?μg/mL in methanol, certified reference material, ampule of 1?mL, Cerilliant?	3258-84-2	1mL	$97.4	2026-04-30	Buy
Sigma-Aldrich	A-109	Acetyl fentanyl solution 1.0?mg/mL in methanol, ampule of 1?mL, certified reference material, Cerilliant?	3258-84-2	1mL	$116	2026-04-30	Buy

Product number	Packaging	Price	Buy
A-129	1mL	$97.4	Buy
A-109	1mL	$116	Buy

N-(1-Phenethyl-piperidin-4-yl)-N-phenyl-acetamide Chemical Properties,Uses,Production

Chemical Properties

Off-White Solid

Uses

A Fentanyl analog. Controlled Substance

General Description

A certified Snap-N-Spike solution suitable for use as starting material in calibrators and controls for fentanyl LC/MS or GC/MS testing methods in clinical toxicology, urine drug testing, prescription monitoring, or forensic analysis applications. Acetyl fentanyl is a designer drug and fentanyl analog with a potency 40 times greater than heroin and 80 times greater than morphine. This Certified Spiking Solution is supplied in a convenient, quantitative, US DEA-exempt solution format and with TK #s for Canadian customers.

N-(1-Phenethyl-piperidin-4-yl)-N-phenyl-acetamide Preparation Products And Raw materials

Raw materials

Preparation Products

3258-84-2(N-(1-Phenethyl-piperidin-4-yl)-N-phenyl-acetamide)Related Search:

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Ohmefentanyl 4-Piperidinecarboxylic acid, 4-[(1-oxopropyl)phenylamino] phenaridine Mefentanyl N-(1-Phenethyl-4-piperidyl)propionanilide hydrochloride

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4-tert-Butyl-N-[2-methyl-1H-indol-5-yl]-N-[1-(2-phenylethyl)piperidin-4-yl]benzamide N-(1-Acetyl-2,3-dihydro-(1H)-indol-5-yl)-N-[1-(2-phenylethyl)piperidin-4-yl]-3-phenyl-(2E)-propenamide N-(1-Acetyl-2,3-dihydro-(1H)-indol-5-yl)-N-[1-(2-phenylethyl)piperidin-4-yl]benzamide

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Acetamide, N-phenyl-N-[1-(2-phenylethyl)-4-piperidinyl]- Acetanilide, N-(1-phenethyl-4-piperidyl)- Fentanyl acetyl analog N-Phenyl-N-[1-(2-phenylethyl)-4-piperidinyl]acetamide 1-Phenethyl-4-(N-phenylacetamido)piperidin Acetyl Fentanyl N-(1-Phenethyl-4-piperidylacetanilide N-Phenyl-N-[1-(phenethyl)piperidiny-4-yl]acetamide 1-Phenethyl-4-(N-phenylacetamido)piperidine 1-Phenethyl-4-(N-acetylanilino)piperidine N-Phenyl-N-(1-phenethyl-4-piperidinyl)acetamide Fentanyl Related Compound G (10 mg) (Acetyl fentanyl) N-Phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]acetaMide Fentanyl Related CoMpound G Acetyl fentanyl solution Fentanyl Related Compound G CI (Acetyl fentanyl N-(1-Phenethylpiperidin-4-yl)-N-phenylacetamide) (1269979) Fentanyl Impurity C Fentanyl Citrate Impurity C Fentanyl Citrate EP Impurity C Fentanyl USP Related Compound G Acetylfentanyl, AF Fentanyl Related Compound G CI (10 mg) (N-(1-Phenethylpiperidin-4-yl)-N-phenylacetamide) Stavudine Impurity 3 (Stavudine EP Impurity C) Acetyl Fentanyl (1.0 mg/mL in Methanol) Fentanyl EP Impurity C (Fentanyl USP Related Compound G) N-(1-Phenethyl-piperidin-4-yl)-N-phenyl-acetamide 3258-84-2 Aromatics Heterocycles Intermediates & Fine Chemicals Pharmaceuticals