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Impurities and reference standards

2-Methylacetanilide

Also known as N-Phenylpropanamide, N-Phenylpropionamide, Propionanilide

CAS 620-71-3Formula C9H11NOMolar mass 149.19 g/molEC 210-649-3
GHS signal word: Warning. Pictograms: Harmful or irritant Prohibited, not for trade
Why it is not for trade
2-Methylacetanilide chemical structure, C9H11NO, CAS 620-71-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
620-71-3
Formula
C9H11NO
Molar mass
149.19 g/mol
EC number
210-649-3
HS code
292429
Category
Impurities and reference standards

What is 2-Methylacetanilide?

Plain description, key identifiers and synonyms

2-Methylacetanilide is a chemical substance with the molecular formula C9H11NO and a molar mass of 149.19 g/mol. Its CAS registry number is 620-71-3. The IUPAC name is N-phenylpropanamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-phenylpropanamide
CAS number
620-71-3 CAS number cross-checkedOther or deprecated CAS: 1346598-63-7
EC number
210-649-3
Molecular formula
C9H11NO
UNII
UYP5ZQI00T
MDL number
MFCD00092530
InChIKey
ZTHRQJQJODGZHV-UHFFFAOYSA-N
InChI
InChI=1S/C9H11NO/c1-2-9(11)10-8-6-4-3-5-7-8/h3-7H,2H2,1H3,(H,10,11)
SMILES (canonical and isomeric)
CCC(=O)NC1=CC=CC=C1

Synonyms

  • N-Phenylpropanamide
  • N-Phenylpropionamide
  • Propionanilide
  • Propanamide, N-phenyl-
  • Propionamide, N-phenyl-
  • N-Phenylpropanamide-d3
  • N-phenyl-propionamide
  • Fentanyl EP Impurity G
  • Methylacetanilid
  • Fentanyl Imp. G (EP), N-Phenylpropanamide, Fentanyl Impurity G, Remifentanil Hydrochloride Impurity O, Remifentanil Impurity O, Remifentanil Impurity O
  • N-Phenylpropanamide #
  • CH3CH2CONHPh
  • 4-12-00-00385 (Beilstein Handbook Reference)
  • Zthrqjqjodgzhv-uhfffaoysa-
  • Fentanyl impurity g
  • Remifentanil hydrochloride impurity o

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
149.19 g/molcalc.
Exact mass
149.0841 Dacalc.
LogP (octanol/water)
2.04calc.
Topological polar surface area
29.1 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
11calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.22calc.
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.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • 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

2-Methylacetanilide suppliers

Trading restrictions apply to this substance

Narcotic drug

2-Methylacetanilide is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Listing and enquiries are not allowed for this substance.

Reference: UN Single Convention on Narcotic Drugs 1961

Our policy on controlled substances

2-Methylacetanilide price

Indicative price range per kg from live supplier offers

Prices are not shown for prohibited substances.

Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

Narcotic drug

2-Methylacetanilide is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Listing and enquiries are not allowed for this substance.

Reference: UN Single Convention on Narcotic Drugs 1961

Our policy on controlled substances

Controls

  • Controlled narcotic drug

United States

  • TSCA inventory (USA)
    Status: Inactive 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 2-Methylacetanilide is traded under.

HS 2924.29Indicative HS code

Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other

World exports in 2024
$5.69B
−5.1% vs 2023, imports $5.8B
2019 to 2024
Top exporters
  1. China32.3%
  2. Switzerland * partner reported13.6%
  3. Norway * partner reported12.8%
Top importers
  1. United States15.9%
  2. Ireland15.8%
  3. Germany11.9%

* Partner reported figures, a lower bound.

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

The HS code shown for 2-Methylacetanilide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2-Methylacetanilide, based on the data on this page

What is 2-Methylacetanilide?

2-Methylacetanilide is a chemical substance with the molecular formula C9H11NO and a molar mass of 149.19 g/mol. Its CAS registry number is 620-71-3. The IUPAC name is N-phenylpropanamide.

What is the CAS number of 2-Methylacetanilide?

The CAS registry number of 2-Methylacetanilide is 620-71-3. Other or deprecated CAS numbers: 1346598-63-7.

What is the molecular formula and weight of 2-Methylacetanilide?

The molecular formula of 2-Methylacetanilide is C9H11NO and its molar mass is 149.19 g/mol.

Is 2-Methylacetanilide hazardous?

2-Methylacetanilide carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2-Methylacetanilide?

2-Methylacetanilide is usually classified under HS code 292429 (Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Can I buy 2-Methylacetanilide on CompoundList?

No. 2-Methylacetanilide is on our prohibited list, so listings, quotes and messages for it are disabled. This page is kept for information only.

Guides for buyers

Practical guides that help when you source, ship or handle 2-Methylacetanilide

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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