CompoundList
Sign in
Synthetic aroma chemicals

Benzoin

Also known as 2-Hydroxy-1,2-diphenylethanone, 2-Hydroxy-2-phenylacetophenone, Benzoylphenylcarbinol

CAS 119-53-9Formula C14H12O2Molar mass 212.25 g/molEC 204-331-3
100 suppliers listed
Get quotes Compare 100 suppliers
Benzoin chemical structure, C14H12O2, CAS 119-53-9
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Pale yellow crystals
Melting point
133 °C
Boiling point
344 °C
Density
1.31 g/cm³
Solubility
SOL IN 3335 PARTS WATER, MORE SOL IN HOT WATER, SOL IN 5 PARTS PYRIDINE, ACETONE, SOL IN…
HS code
291440
Category
Synthetic aroma chemicals
Illustrative photo, off-white powder in an open kraft paper sack in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Benzoin?

Plain description, key identifiers and synonyms

Benzoin is a ketone that consists of acetophenone bearing hydroxy and phenyl substituents at the alpha-position. The parent of the class of benzoins. It has a role as an EC 3.1.1.1 (carboxylesterase) inhibitor. It is a secondary alpha-hydroxy ketone and a member of benzoins.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-hydroxy-1,2-diphenylethanone
CAS number
119-53-9 CAS number cross-checkedOther or deprecated CAS: 579-44-2
EC numbers
204-331-3, 209-441-5
Molecular formula
C14H12O2
UNII
L7J6A1NE81
MDL number
MFCD00004496
INCI name
STYRAX BENZOIN GUM, STYRAX BENZOIN GUM EXTRACT
InChIKey
ISAOCJYIOMOJEB-UHFFFAOYSA-N
InChI
InChI=1S/C14H12O2/c15-13(11-7-3-1-4-8-11)14(16)12-9-5-2-6-10-12/h1-10,13,15H
SMILES (canonical and isomeric)
C1=CC=C(C=C1)C(C(=O)C2=CC=CC=C2)O

Synonyms

  • 2-Hydroxy-1,2-diphenylethanone
  • 2-Hydroxy-2-phenylacetophenone
  • Benzoylphenylcarbinol
  • DL-Benzoin
  • Ethanone, 2-hydroxy-1,2-diphenyl-
  • (+-)-Benzoin
  • Phenylbenzoyl carbinol
  • alpha-Hydroxy-alpha-phenylacetophenone
  • alpha-Hydroxybenzyl phenyl ketone
  • Aerozoin
  • desyl alcohol
  • Phenyl-alpha-hydroxybenzyl ketone
  • (RS)-Benzoin
  • Hydroxy-2-phenyl acetophenone
  • Wy 42956
  • Benzoin, (+-)-
  • 2 hydroxy 1,2 diphenylethanone
  • 2-hydroxy-1,2-diphenylethan-1-one
  • Acetophenone, 2-hydroxy-2-phenyl-
  • 2-hydroxy-1,2-diphenyl-ethanone
  • a-Hydroxybenzyl phenyl ketone
  • Ketone, alpha-hydroxybenzyl phenyl
  • Benzoin (VAN)
  • Fenyl-alpha-hydroxybenzylketon
  • benzoine
Show all 34 synonyms
  • Benzoin absolute
  • DL-Benzoin, Desyl alcohol, (+/-)-2-Hydroxy-2-phenylacetophenone
  • 2-hydroxy-1,2-diphenyl ethanone
  • Alpha-hydroxy-a-phenylacetophenone
  • benzoin resin siam
  • PhCH(OH)COPh
  • PhCOCH(OH)Ph
  • Benzoin, 98%
  • (+/-)-benzoin

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
Pale yellow crystalsexp.
Odour
SWEET NON-DESCRIPT ODORexp.
Taste
SWEET NON-DESCRIPT TASTEexp.
Melting point
133 °Cexp.
Boiling point
344 °Cexp.
Density
1.31 g/cm³exp.
Solubility
SOL IN 3335 PARTS WATER, MORE SOL IN HOT WATER, SOL IN 5 PARTS PYRIDINE, ACETONE, SOL IN BOILING ALC, SLIGHTLY SOL IN ETHER /DL-FORM/exp.
Vapour pressure
1 MM HG @ 135.6 °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
212.25 g/molcalc.
Exact mass
212.0837 Dacalc.
LogP (octanol/water)
2.6calc.
Topological polar surface area
37.3 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
16calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.07calc.
Formal charge
0calc.
Stereocentres
1calc.
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, O=C(Cc1ccccc1)c1ccccc1

O=C(Cc1ccccc1)c1ccccc1

2 rings, 15 atoms, the 2-Phenylacetophenone ring system.

1,155 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms

Hazard statements

  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (2)
  • P273Avoid release to the environment.
  • 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

Benzoin suppliers

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

All 100 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

100 suppliers in 16 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Benzoin price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

In organic syntheses.

Principly as a flavor ingredient, antiseptic, photopolymerization catalyst, intermediate for alpha-benzoin oxime (analyt reagent for metals), wetting agents, emulsifying agents, stilbestrol products.

Industrial uses: Surfactant (surface active agent), Binder, Viscosity modifiers.

Consumer uses: Aerating and deaerating agents, Other, Surfactant (surface active agent).

Cosmetic ingredient, INCI name STYRAX BENZOIN GUM EXTRACT(perfuming)

Roles

  • enzyme inhibitor

Functional uses

  • Adhesion/cohesion promoter
  • Anti-adhesive/cohesive
  • Deodorizer
  • Film former
  • Flavouring and nutrient
  • Fragrance
  • Processing aids not otherwise specified
  • Softener and conditioner

Cosmetic functions

  • Film forming
  • Fragrance
  • Perfuming
  • Skin conditioning

How it is made

Reaction of potassium cyanide and benzaldehyde (benzoin condensation)

Prepd by treating an alcoholic solution of benzaldehyde with an alkali cyanide: adams, marvel, org syn vol 1, page 33 (1921), coll vol i, 88, arnold, fuson, j am chem soc 58, 1295 (1936), lf fieser, organic experiments (dc health & co, boston, 1964), pages 211-214.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

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 Benzoin is traded under.

HS 2914.40Indicative HS code

Ketone-alcohols and ketone-aldehydes

World exports in 2024
$199M
+2.5% vs 2023, imports $247M
2019 to 2024
Top exporters
  1. China29.5%
  2. Germany14.4%
  3. Netherlands12.7%
Top importers
  1. United States37.2%
  2. Netherlands8.5%
  3. Germany6.4%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Benzoin?

Benzoin is a ketone that consists of acetophenone bearing hydroxy and phenyl substituents at the alpha-position. The parent of the class of benzoins. It has a role as an EC 3.1.1.1 (carboxylesterase) inhibitor. It is a secondary alpha-hydroxy ketone and a member of benzoins.

What is the CAS number of Benzoin?

The CAS registry number of Benzoin is 119-53-9. Other or deprecated CAS numbers: 579-44-2.

What is the molecular formula and weight of Benzoin?

The molecular formula of Benzoin is C14H12O2 and its molar mass is 212.25 g/mol.

What is Benzoin used for?

In organic syntheses. Principly as a flavor ingredient, antiseptic, photopolymerization catalyst, intermediate for alpha-benzoin oxime (analyt reagent for metals), wetting agents, emulsifying agents, stilbestrol products. Industrial uses: Surfactant (surface active agent), Binder, Viscosity modifiers.

Is Benzoin hazardous?

Benzoin has a GHS hazard classification. Main hazards: harmful to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Benzoin?

Benzoin is usually classified under HS code 291440 (Ketone-alcohols and ketone-aldehydes). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Benzoin?

CompoundList lists 100 suppliers of Benzoin in China, United States, India, Germany and 12 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Benzoin in India?

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

What is the price of Benzoin?

Suppliers quote Benzoin 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 Benzoin

Get quotes for Benzoin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Benzoin
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Benzoin with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/benzoin-119-53-9" title="Benzoin structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Synthetic aroma chemicals or HS code 291440

100 suppliers
Free quotes, contact stays private
Get quotes