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Skin conditioning agents and actives

2-Chloroacetophenone

Also known as Phenacyl chloride, 2-Chloro-1-phenylethanone, omega-Chloroacetophenone

CAS 532-27-4Formula C8H7ClOMolar mass 154.60 g/molEC 208-531-1
GHS signal word: Danger. Pictograms: Corrosive, Acute toxicity (severe), Harmful or irritant, Serious health hazard 28 suppliers listed
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2-Chloroacetophenone chemical structure, C8H7ClO, CAS 532-27-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals from dilute alcohol, carbon tetrachloride, or light petroleum
Melting point
56.5 °C
Boiling point
247 °C
Density
1.324 g/cm³ at 15 °C
Flash point
118 °C
HS code
291479
Category
Skin conditioning agents and actives
UN number
UN 3416
Illustrative photo, closed jumbo bulk bags in a warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 2-Chloroacetophenone?

Plain description, key identifiers and synonyms

2-chloroacetophenone appears as a riot control agent and chemical warfare tear gas agent. A white crystalline solid. Denser than water and insoluble in water. Hence sinks in water. A lachrymator: vapors are very irritating to the eyes. Has a floral odor.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-chloro-1-phenylethanone
CAS number
532-27-4 CAS number cross-checked
EC number
208-531-1
Molecular formula
C8H7ClO
UNII
88B5039IQG
MDL number
MFCD00000933
INCI name
MYRISTICA FRAGRANS KERNEL OIL
InChIKey
IMACFCSSMIZSPP-UHFFFAOYSA-N
InChI
InChI=1S/C8H7ClO/c9-6-8(10)7-4-2-1-3-5-7/h1-5H,6H2
SMILES (canonical and isomeric)
C1=CC=C(C=C1)C(=O)CCl

Synonyms

  • Phenacyl chloride
  • 2-Chloro-1-phenylethanone
  • omega-Chloroacetophenone
  • Chloroacetophenone
  • alpha-Chloroacetophenone
  • Tear Gas
  • Mace (lacrimator)
  • Chloromethyl phenyl ketone
  • Phenacylchloride
  • Chemical mace
  • Acetophenone, 2-chloro-
  • Ethanone, 2-chloro-1-phenyl-
  • 1-Chloroacetophenone
  • CN (lacrimator)
  • Phenyl chloromethyl ketone
  • Phenylchloromethylketone
  • Chloracetophenone
  • Phenyl chloromethylketone
  • 2 Chloroacetophenone
  • 3' Chloroacetophenone
  • alpha Chloroacetophenone
  • omega Chloroacetophenone
  • 2 Chloro 1 phenylethanone
  • 2-Chloro-1-phenylethan-1-one
  • 2-Chloro-1-phenyl-ethanone
Show all 36 synonyms
  • alpha-Phenacyl chloride
  • a-Chloroacetophenone
  • ?-Chloroacetophenone
  • Chloroacetophenone, 2-
  • 2-Chloroacetophenone (CN)
  • minyak bunga pala
  • minyak phuli pala
  • 2-chloroacetophenon
  • Chloroacetyl benzene
  • mace oil east indian
  • Benzoylmethyl chloride

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
Crystals from dilute alcohol, carbon tetrachloride, or light petroleumexp.
Odour
IN VERY LOW CONCN IN AIR IT HAS AN ODOR RESEMBLING APPLE BLOSSOMSexp.
Melting point
56.5 °Cexp.
Boiling point
247 °Cexp.
Density
1.324 g/cm³ at 15 °Cexp.
Flash point
118 °Cexp.
Solubility
Practically insoluble in waterexp.
Vapour pressure
0 °C, 0.0026 mm Hg, 20 °C, 0.0041 mm Hg, 52 °C, 0.152 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
154.60 g/molcalc.
Exact mass
154.0185 Dacalc.
LogP (octanol/water)
2.11calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
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
Danger
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
130NFPA 704 rating

Hazard statements

  • H300Fatal if swallowed.
  • H311Toxic in contact with skin.
  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H318Causes serious eye damage.
  • H330Fatal if inhaled.
  • H331Toxic if inhaled.
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (30)
  • P233Keep container tightly closed.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P262Do not get in eyes, on skin, or on clothing.
  • 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.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P342 + P316If experiencing respiratory symptoms: Get emergency medical help immediately.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403Store in a well-ventilated place.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3416
Transport hazard class
6.1
Packing group
II

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-Chloroacetophenone suppliers

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All 28 suppliers
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Where suppliers are based

28 suppliers in 5 countries

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2-Chloroacetophenone 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

For 2-chloroacetophenone (USEPA/OPP PC Code: 018001) there are 0 labels match.

Alcohol denaturant (former use).

Pharmaceutical intermediate, riot control gas.

Obsolete in military use, common in police agency mixtures of tear gas, principal ingredient in the riot agent under the tradename MACE (whose tradename is derived from the first letters of) Methylchloroform chloro ACEtophenone.

Because of its strong lacrimating capacity, (it's) used as a riot-control agent and in personal protective devices.

Cosmetic ingredient, INCI name MYRISTICA FRAGRANS KERNEL OIL(fragrance, skin conditioning)

Pharmacological actions

  • Irritants
  • Tear Gases

Functional uses

  • Deodorizer
  • Flavouring and nutrient
  • Fragrance
  • Softener and conditioner
  • Thickening agent

Cosmetic functions

  • Fragrance
  • Skin conditioning

How it is made

From chloroacetylchloride, benzene, and aluminum chloride.

Prepared by chlorination of acetophenone with selenium oxychloride

Acetophenone (alpha chlorination)

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 2-Chloroacetophenone is traded under.

HS 2914.79Indicative HS code

Halogenated, sulphonated, nitrated or nitrosated derivatives, other

World exports in 2024
$558M
−12.1% vs 2023, imports $608M
2019 to 2024
Top exporters
  1. China41.2%
  2. India * partner reported28.7%
  3. Germany16.7%
Top importers
  1. United States29.1%
  2. Italy9.9%
  3. Switzerland * partner reported8.8%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is 2-Chloroacetophenone?

2-chloroacetophenone appears as a riot control agent and chemical warfare tear gas agent. A white crystalline solid. Denser than water and insoluble in water. Hence sinks in water. A lachrymator: vapors are very irritating to the eyes. Has a floral odor.

What is the CAS number of 2-Chloroacetophenone?

The CAS registry number of 2-Chloroacetophenone is 532-27-4.

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

The molecular formula of 2-Chloroacetophenone is C8H7ClO and its molar mass is 154.60 g/mol.

What is 2-Chloroacetophenone used for?

For 2-chloroacetophenone (USEPA/OPP PC Code: 018001) there are 0 labels match. Alcohol denaturant (former use). Pharmaceutical intermediate, riot control gas.

Is 2-Chloroacetophenone hazardous?

2-Chloroacetophenone carries the GHS signal word "Danger". Main hazards: fatal if swallowed, toxic 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 2-Chloroacetophenone?

2-Chloroacetophenone is usually classified under HS code 291479 (Halogenated, sulphonated, nitrated or nitrosated derivatives, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2-Chloroacetophenone?

CompoundList lists 28 suppliers of 2-Chloroacetophenone in China, India, United States, United Kingdom and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 2-Chloroacetophenone in India?

7 suppliers in India list 2-Chloroacetophenone on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 2-Chloroacetophenone?

Suppliers quote 2-Chloroacetophenone 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 2-Chloroacetophenone

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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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