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Synthetic aroma chemicals

Benzaldehyde

Also known as Benzoic aldehyde, Phenylmethanal, Benzenecarbonal

CAS 100-52-7Formula C7H6OMolar mass 106.12 g/molEC 202-860-4
GHS signal word: Warning. Pictograms: Harmful or irritant 229 suppliers listed
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Benzaldehyde chemical structure, C7H6O, CAS 100-52-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Strongly refractive liquid, becoming yellowish on keeping
Melting point
-57.1 °C
Boiling point
178.7 °C
Density
Relative density (water = 1): 1.05
Flash point
63 °C
HS code
291221
Category
Synthetic aroma chemicals
UN number
UN 1990
Illustrative photo, steel drums with a pale yellow liquid sample in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Benzaldehyde?

Plain description, key identifiers and synonyms

Benzaldehyde is an arenecarbaldehyde that consists of benzene bearing a single formyl substituent, the simplest aromatic aldehyde and parent of the class of benzaldehydes. It has a role as a flavouring agent, a fragrance, an odorant receptor agonist, an EC 3.1.1.3 (triacylglycerol lipase) inhibitor, a plant metabolite and an EC 3.5.5.1 (nitrilase) inhibitor.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
benzaldehyde
CAS number
100-52-7 CAS number cross-checkedOther or deprecated CAS: 26006-39-3, 55279-75-9
EC number
202-860-4
Molecular formula
C7H6O
UNII
TA269SD04T
MDL number
MFCD00003299, MFCD00801585
INCI name
BENZALDEHYDE
InChIKey
HUMNYLRZRPPJDN-UHFFFAOYSA-N
InChI
InChI=1S/C7H6O/c8-6-7-4-2-1-3-5-7/h1-6H
SMILES (canonical and isomeric)
C1=CC=C(C=C1)C=O

Synonyms

  • Benzoic aldehyde
  • Phenylmethanal
  • Benzenecarbonal
  • Benzenecarboxaldehyde
  • Benzenemethylal
  • Benzaldehyde FFC
  • Benzene carbaldehyde
  • Benzene carboxaldehyde
  • benzanoaldehyde
  • Benzylaldehyde
  • Benzoic acid aldehyde
  • Phenylformaldehyde
  • Bitter almond oil,
  • Benzoyl hydride
  • Benzaldehyde-alpha-d1
  • Benzadehyde
  • Benzyaldehyde
  • Benzaldehyde-formyl-d
  • Phenylmethanal benzenecarboxaldehyde
  • Benzaldehyde (NF)
  • benzaldehyd
  • Benzaldehyde (natural)
  • Benzaldhyde
  • Benzaldehyde CRS
  • benzaidehyde
Show all 35 synonyms
  • benzaldehvde
  • benzaldehye
  • benzaldeyde
  • phenyl-methanone
  • Aromatic aldehyde
  • Benzoylwasserstoff
  • (phenyl)methanone
  • benzenecarbaldehyde
  • PhCHO
  • 2vj1

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
Strongly refractive liquid, becoming yellowish on keepingexp.
Odour
Characteristic odor or volatile oil of almondexp.
Taste
Burning aromatic tasteexp.
Melting point
-57.1 °Cexp.
Boiling point
178.7 °Cexp.
Density
Relative density (water = 1): 1.05exp.
Flash point
63 °Cexp.
Autoignition temperature
192 °Cexp.
Solubility
In water, 6950 mg/L at 25 °Cexp.
Vapour pressure
1.27 mm Hg at 25 °Cexp.

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
106.12 g/molcalc.
Exact mass
106.0419 Dacalc.
LogP (octanol/water)
1.5calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
8calc.
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
210NFPA 704 rating

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.
UN number
UN 1990
Transport hazard class
9
Packing group
III

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

Benzaldehyde suppliers

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All 229 suppliers
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Where suppliers are based

229 suppliers in 27 countries

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Benzaldehyde 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

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.".

The single largest use for benzaldehyde ... is the production of benzyl alcohol via hydrogenation.

Benzaldehyde is an aromatic aldehyde used in cosmetics as a denaturant, a flavoring agent, and as a fragrance. Currently used in only seven cosmetic products, its highest reported concentration of use was 0.5% in perfumes.

Industrial uses: Flavoring and nutrient, Solvent, Intermediate, Fragrance.

Consumer uses: Intermediate, Fragrance, Flavoring and nutrient.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name BENZALDEHYDE(denaturant, fragrance, perfuming, flavouring)

Roles

  • additive
  • agonist
  • enzyme inhibitor
  • eukaryotic metabolite
  • flavouring agent
  • food additive
  • food component
  • fragrance
  • metabolite
  • odorant receptor agonist
  • physiological role
  • plant metabolite

Functional uses

  • Deodorizer
  • Flavouring and nutrient
  • Fragrance
  • Solvent

Cosmetic functions

  • Denaturant
  • Flavouring
  • Fragrance
  • Perfuming

Pharmacology

Benzaldehyde is an aromatic aldehyde bearing a single formyl group with an almond odor. Benzaldehyde can be derived from natural sources and is widely used by the chemical industry in the preparation of various aniline dyes, perfumes, flavorings, and pharmaceuticals.

How it is made

Alkaline hydrolysis of benzal chloride.

The air oxidation of toluene is the source of the majority of the world's synthetic benzaldehyde. Both vapor- and liquid-phase air oxidation processes have been used. In the vapor-phase process, a mixture of air and toluene vapor is passed over a catalyst consisting of the oxides of uranium, molybdenum, or related metals. High temperatures and short contact times are essential to maximize yields. Small amounts of copper oxide may be added to the catalyst mixture to reduce formation of by-product maleic anhydride.

Read more

Conversion per pass is reported to be low, 10-20%, with equally low yields, 30-50%. The vapor-phase oxidation of toluene was the dominant toluene oxidation process in the 1950s and early 1960s, but is no longer of industrial importance. The liquid-phase process now dominates. In the liquid-phase process, both benzaldehyde and benzoic acid are recovered. This process was introduced and developed in the late 1950s by the Dow Chemical Company, as a part of their toluene-to-phenol process, and by Snia Viscosa for their toluene-to-caprolactam process. The benzaldehyde recovered from the liquid-phase air oxidation of toluene may be purified by either batch or continuous distillation.

Benzaldehyde is produced principally by the hydrolysis of benzal chloride or the partial oxidation of toluene.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 605-012-00-5

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex III, restricted in cosmetics
    Name: Benzaldehyde, Ref no: 330, Annex ref: III/330

Controls

  • US DEA controlled substance or listed chemical

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 Benzaldehyde is traded under.

HS 2912.21Exact HS code

Aldehydes: cyclic, without other oxygen function, benzaldehyde

World exports in 2024
$71.2M
+12.7% vs 2023, imports $67M
2019 to 2024
Top exporters
  1. China49.2%
  2. Netherlands13.3%
  3. Belgium10.4%
Top importers
  1. United States26.7%
  2. United Kingdom13.9%
  3. India * partner reported9.2%

* Partner reported figures, a lower bound.

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

The HS code shown for Benzaldehyde is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Benzaldehyde?

Benzaldehyde is an arenecarbaldehyde that consists of benzene bearing a single formyl substituent, the simplest aromatic aldehyde and parent of the class of benzaldehydes.

What is the CAS number of Benzaldehyde?

The CAS registry number of Benzaldehyde is 100-52-7. Other or deprecated CAS numbers: 26006-39-3, 55279-75-9.

What is the molecular formula and weight of Benzaldehyde?

The molecular formula of Benzaldehyde is C7H6O and its molar mass is 106.12 g/mol.

What is Benzaldehyde used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". The single largest use for benzaldehyde ... is the production of benzyl alcohol via hydrogenation. Benzaldehyde is an aromatic aldehyde used in cosmetics as a denaturant, a flavoring agent, and as a fragrance.

Is Benzaldehyde hazardous?

Benzaldehyde 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 Benzaldehyde?

Benzaldehyde is usually classified under HS code 291221 (Benzaldehyde). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Benzaldehyde?

CompoundList lists 229 suppliers of Benzaldehyde in China, India, United States, Canada and 23 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Benzaldehyde in India?

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What is the price of Benzaldehyde?

Suppliers quote Benzaldehyde 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 Benzaldehyde

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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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