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Impurities and reference standards

Benzamide

Also known as Benzoylamide, Benzoic acid amide, Benzenecarboxamide

CAS 55-21-0Formula C7H7NOMolar mass 121.14 g/molEC 200-227-7
GHS signal word: Warning. Pictograms: Harmful or irritant, Serious health hazard 107 suppliers listed
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Benzamide chemical structure, C7H7NO, CAS 55-21-0
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless crystals
Melting point
130 °C
Boiling point
288 °C
Density
1.341
Solubility
In water, 1.35 × 10⁺⁴ mg/l @ 25 °C
HS code
292429
Category
Impurities and reference standards
Illustrative photo, colourless crystals in small glass vials on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Benzamide?

Plain description, key identifiers and synonyms

Benzamide is an aromatic amide that consists of benzene bearing a single carboxamido substituent. The parent of the class of benzamides.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
benzamide
CAS number
55-21-0 CAS number cross-checkedOther or deprecated CAS: 1613-76-9, 27208-38-4, 55738-52-8
EC number
200-227-7
Molecular formula
C7H7NO
UNII
6X80438640
MDL number
MFCD00007968
InChIKey
KXDAEFPNCMNJSK-UHFFFAOYSA-N
InChI
InChI=1S/C7H7NO/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H2,8,9)
SMILES (canonical and isomeric)
C1=CC=C(C=C1)C(=O)N

Synonyms

  • Benzoylamide
  • Benzoic acid amide
  • Benzenecarboxamide
  • Phenylcarboxamide
  • Phenylcarboxyamide
  • Amid kyseliny benzoove
  • Phenyl Carboxyamide
  • Sofosbuvir Impurity 18
  • Benzoic acid,amide
  • benzoylamine
  • benzeneamide
  • benzimide
  • phenylamide
  • N-benzoylamine
  • benzoyl nitrogen
  • benzene carboxamide
  • benzene-carboxamide
  • Amidkyselinybenzoove
  • benzene, carbamoyl-
  • Benzamide, 99%
  • benzene carboximidoic acid
  • PhC(O)NH2
  • PhC(=O)NH2
  • 4-09-00-00725 (Beilstein Handbook Reference)
  • benzamide (ACD/Name 4.0)
Show all 31 synonyms
  • Benzamide, p.a., 98.0%
  • Sdccgsbi-0050148.p002
  • Benzamide, purum, >=98.0% (HPLC)
  • Benzamide(Discontinued,See C4X-127042)
  • Benzamide, Vetec(TM) reagent grade, 98%
  • Benzamide, purified by sublimation, >=99.5%

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
Colorless crystalsexp.
Melting point
130 °Cexp.
Boiling point
288 °Cexp.
Density
1.341exp.
Solubility
In water, 1.35 × 10⁺⁴ mg/l @ 25 °Cexp.
Vapour pressure
0.000165 [mm Hg]exp.

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
121.14 g/molcalc.
Exact mass
121.0528 Dacalc.
LogP (octanol/water)
0.79calc.
Topological polar surface area
43.09 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
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
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H302Harmful if swallowed.
  • H341Suspected of causing genetic defects.
Precautionary statements (9)
  • P203Obtain, read and follow all safety instructions before use.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P330Rinse mouth.
  • 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

Benzamide suppliers

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All 107 suppliers
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Where suppliers are based

107 suppliers in 17 countries

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Benzamide 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

Organic synthesis.

To manufacture benzonitrile.

How it is made

From benzoyl chloride and ammonia or ammonium carbonate.

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 Benzamide 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 Benzamide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Benzamide, based on the data on this page

What is Benzamide?

Benzamide is an aromatic amide that consists of benzene bearing a single carboxamido substituent. The parent of the class of benzamides.

What is the CAS number of Benzamide?

The CAS registry number of Benzamide is 55-21-0. Other or deprecated CAS numbers: 1613-76-9, 27208-38-4, 55738-52-8.

What is the molecular formula and weight of Benzamide?

The molecular formula of Benzamide is C7H7NO and its molar mass is 121.14 g/mol.

What is Benzamide used for?

Organic synthesis. To manufacture benzonitrile.

Is Benzamide hazardous?

Benzamide carries the GHS signal word "Warning". Main hazards: harmful if swallowed, suspected of causing genetic defects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Benzamide?

Benzamide 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.

Where can I buy Benzamide?

CompoundList lists 107 suppliers of Benzamide in United States, China, India, United Kingdom and 13 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Benzamide in India?

13 suppliers in India list Benzamide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Benzamide?

Suppliers quote Benzamide 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 Benzamide

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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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