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Halogenated compounds

1-Chloropropane

Also known as Propyl chloride, N-Propyl chloride, Propane, 1-chloro-

CAS 540-54-5Formula C3H7ClMolar mass 78.54 g/molEC 208-749-7
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant 17 suppliers listed
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1-Chloropropane chemical structure, C3H7Cl, CAS 540-54-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Melting point
-122.8 °C
Boiling point
46.6 °C
Density
0.8899 g/cm³
Flash point
<-18
HS code
290319
Category
Halogenated compounds
UN number
UN 1278
Illustrative photo, 200 litre blue HDPE drums of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 1-Chloropropane?

Plain description, key identifiers and synonyms

1-chloropropane appears as a clear colorless liquid. Boiling point 46.6 °C. Flash point below 0 °F. Less dense than water and slightly soluble in water. Vapors are heavier than air. Irritant and narcotic.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-chloropropane
CAS number
540-54-5 CAS number cross-checkedOther or deprecated CAS: 26446-76-4
EC number
208-749-7
Molecular formula
C3H7Cl
UNII
TUV7462NWK
MDL number
MFCD00000995
InChIKey
SNMVRZFUUCLYTO-UHFFFAOYSA-N
InChI
InChI=1S/C3H7Cl/c1-2-3-4/h2-3H2,1H3
SMILES (canonical and isomeric)
CCCCl

Synonyms

  • Propyl chloride
  • N-Propyl chloride
  • Propane, 1-chloro-
  • Chloropropane
  • Propane, chloro-
  • 1-Chloro-propane
  • n-propylchloride
  • PrCl
  • 1-Chloro propane
  • n-C3H7Cl
  • 1-Chloropropane, 98%
  • 4-01-00-00189 (Beilstein Handbook Reference)
  • UN 1278
  • Propyl chloride [UN1278] [Flammable liquid]

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 liquidexp.
Odour
Chloroform-like odorexp.
Melting point
-122.8 °Cexp.
Boiling point
46.6 °Cexp.
Density
0.8899 g/cm³exp.
Flash point
<-18exp.
Autoignition temperature
520 °Cexp.
Solubility
In water, 2720 mg/L at 25 °Cexp.
Vapour pressure
1 mm Hg at 68.3 °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
78.54 g/molcalc.
Exact mass
78.0236 Dacalc.
LogP (octanol/water)
1.64calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
1calc.
Heavy atoms
4calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant
320NFPA 704 rating

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H332Harmful if inhaled.
Precautionary statements (22)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1278
Transport hazard class
3
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

1-Chloropropane suppliers

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Where suppliers are based

17 suppliers in 6 countries

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1-Chloropropane 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

Used as an intermediate in the production of the sweetner sodium 2-(4-methoxybenzoyl) benzoate (known as 23/46) for food and beverages, but had limited applicability.

Chemical intermediate for n-propylamine (former use).

How it is made

Prepared from propyl alcohol and PCl3 in the presence of ZnCl2.

By reaction of n-propyl alcohol with hydrochloric acid in the presence of zinc chloride as a catalyst, believed to be a byproduct of the manufacture of other chlorinated C3 hydrocarbons

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 602-018-00-X[1]

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 1-Chloropropane is traded under.

HS 2903.19Indicative HS code

Saturated chlorinated derivatives of acyclic hydrocarbons, other

World exports in 2024
$81.2M
−13.3% vs 2023, imports $81.1M
2019 to 2024
Top exporters
  1. China32.6%
  2. Germany25.6%
  3. Brazil18.2%
Top importers
  1. United States35.7%
  2. South Korea7.6%
  3. India * partner reported6.7%

* Partner reported figures, a lower bound.

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

The HS code shown for 1-Chloropropane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 1-Chloropropane, based on the data on this page

What is 1-Chloropropane?

1-chloropropane appears as a clear colorless liquid. Boiling point 46.6 °C. Flash point below 0 °F. Less dense than water and slightly soluble in water. Vapors are heavier than air. Irritant and narcotic.

What is 1-Chloropropane used for?

Used as an intermediate in the production of the sweetner sodium 2-(4-methoxybenzoyl) benzoate (known as 23/46) for food and beverages, but had limited applicability. Chemical intermediate for n-propylamine (former use).

Is 1-Chloropropane hazardous?

1-Chloropropane carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, harmful if swallowed, harmful in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

Guides for buyers

Practical guides that help when you source, ship or handle 1-Chloropropane

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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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