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Impurities and reference standards

p-Aminoacetophenone

Also known as 4'-Aminoacetophenone, 1-(4-Aminophenyl)ethanone, 4-Aminoacetophenone

CAS 99-92-3Formula C8H9NOMolar mass 135.17 g/molEC 202-801-2
GHS signal word: Warning. Pictograms: Harmful or irritant 33 suppliers listed
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p-Aminoacetophenone chemical structure, C8H9NO, CAS 99-92-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Yellow monoclinic prisms from alcohol
Melting point
106 ยฐC
Boiling point
294 ยฐC
Solubility
In water, 3.35 ร— 10โบยณ mg/L at 37 ยฐC
HS code
292239
Category
Impurities and reference standards
Illustrative photo, yellow pigment powder in an open fibre drum in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is p-Aminoacetophenone?

Plain description, key identifiers and synonyms

p-Aminoacetophenone is a chemical substance with the molecular formula C8H9NO and a molar mass of 135.17 g/mol. Its CAS registry number is 99-92-3. The IUPAC name is 1-(4-aminophenyl)ethanone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-(4-aminophenyl)ethanone
CAS number
99-92-3 CAS number cross-checked
EC number
202-801-2
Molecular formula
C8H9NO
UNII
1S58KH902I
MDL number
MFCD00007896
InChIKey
GPRYKVSEZCQIHD-UHFFFAOYSA-N
InChI
InChI=1S/C8H9NO/c1-6(10)7-2-4-8(9)5-3-7/h2-5H,9H2,1H3
SMILES (canonical and isomeric)
CC(=O)C1=CC=C(C=C1)N

Synonyms

  • 4'-Aminoacetophenone
  • 1-(4-Aminophenyl)ethanone
  • 4-Aminoacetophenone
  • 4-Acetylaniline
  • p-Acetylaniline
  • Ethanone, 1-(4-aminophenyl)-
  • p-Aminoacetylbenzene
  • Acetophenone, p-amino-
  • USAF EK-631
  • Acetophenone, 4-amino-
  • para-aminoacetophenone
  • 1-(4-Aminophenyl)Ethan-1-One
  • Acetophenone, 4'-amino-
  • Clenbuterol EP Impurity D
  • p-Aminoacetofenonu
  • 1-acetyl-4-aminobenzene
  • 1-(4-Aminophenyl)-ethanone
  • 4'-aminoacetophenon
  • p-amino acetophenone
  • 4-Acetylaniline, p-Aminoacetophenone, p-Aminoacetylbenzene
  • 4-acetylanilin
  • p-aminoacetophenon
  • p-amino-acetophenone
  • 4-acetyl phenylamine
  • 4-amino acetophenone
Show all 34 synonyms
  • aniline, 4-acetyl-
  • Clenbuterol Impurity D
  • para-amino acetophenone
  • 4'-Amino acetophenone
  • 4-Amino-acetophenon
  • 1-(4-aminophenyl) ethanone
  • 4'-Aminoacetophenone, 99%
  • 4-14-00-00100 (Beilstein Handbook Reference)
  • 1-(4-amino-phenyl)-ethanone

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Yellow monoclinic prisms from alcoholexp.
Odour
Pleasant, characteristic odorexp.
Melting point
106 ยฐCexp.
Boiling point
294 ยฐCexp.
Solubility
In water, 3.35 ร— 10โบยณ mg/L at 37 ยฐCexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
135.17 g/molcalc.
Exact mass
135.0684 Dacalc.
LogP (octanol/water)
1.47calc.
Topological polar surface area
43.09 ร…ยฒcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.13calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (20)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

p-Aminoacetophenone suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 33 suppliers
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Where suppliers are based

33 suppliers in 10 countries

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p-Aminoacetophenone price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Laboratory reagent.

For treating intoxication with cyanogenic toxic substances.

Chemical intermediate for flavaniline (basic dye), acetohexamide, and an oral hypoglycemic drug.

How it is made

Transfer hydrogenation of p-nitroacetophenone with palladium catalyst and cyclohexene hydrogen donor

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code p-Aminoacetophenone is traded under.

HS 2922.39Indicative HS code

Amino-aldehydes, amino-ketones and amino-quinones, other than those containing more thanโ€ฆ

World exports in 2024
$187M
โˆ’0.3% vs 2023, imports $159M
2019 to 2024
Top exporters
  1. China35.3%
  2. India * partner reported27.7%
  3. Germany12.7%
Top importers
  1. Germany17.3%
  2. United States13.8%
  3. India * partner reported9.9%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for p-Aminoacetophenone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about p-Aminoacetophenone, based on the data on this page

What is p-Aminoacetophenone?

p-Aminoacetophenone is a chemical substance with the molecular formula C8H9NO and a molar mass of 135.17 g/mol. Its CAS registry number is 99-92-3. The IUPAC name is 1-(4-aminophenyl)ethanone.

What is the CAS number of p-Aminoacetophenone?

The CAS registry number of p-Aminoacetophenone is 99-92-3.

What is the molecular formula and weight of p-Aminoacetophenone?

The molecular formula of p-Aminoacetophenone is C8H9NO and its molar mass is 135.17 g/mol.

What is p-Aminoacetophenone used for?

Laboratory reagent. For treating intoxication with cyanogenic toxic substances. Chemical intermediate for flavaniline (basic dye), acetohexamide, and an oral hypoglycemic drug.

Is p-Aminoacetophenone hazardous?

p-Aminoacetophenone carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful in contact with skin, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of p-Aminoacetophenone?

p-Aminoacetophenone is usually classified under HS code 292239 (Amino-aldehydes, amino-ketones and amino-quinones, other than those containing more thanโ€ฆ). This is indicative, confirm it with your customs broker before shipping.

Where can I buy p-Aminoacetophenone?

CompoundList lists 33 suppliers of p-Aminoacetophenone in China, India, United States, Canada and 6 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy p-Aminoacetophenone in India?

4 suppliers in India list p-Aminoacetophenone on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of p-Aminoacetophenone?

Suppliers quote p-Aminoacetophenone on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle p-Aminoacetophenone

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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