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Chlorinated and fluorinated solvents

Propanedioyl dichloride

Also known as Malonyl chloride, Malonyl dichloride, Malonoyl chloride

CAS 1663-67-8Formula C3H2Cl2O2Molar mass 140.95 g/molEC 216-772-9
GHS signal word: Danger. Pictograms: Flammable, Corrosive 1 supplier listed
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Propanedioyl dichloride chemical structure, C3H2Cl2O2, CAS 1663-67-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1663-67-8
Formula
C3H2Cl2O2
Molar mass
140.95 g/mol
Physical form
Liquid
HS code
291719
Category
Chlorinated and fluorinated solvents
Illustrative photo, closed blue steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Propanedioyl dichloride?

Plain description, key identifiers and synonyms

Propanedioyl dichloride is a chemical substance with the molecular formula C3H2Cl2O2 and a molar mass of 140.95 g/mol. Its CAS registry number is 1663-67-8.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
propanedioyl dichloride
CAS number
1663-67-8 CAS number cross-checked
EC number
216-772-9
Molecular formula
C3H2Cl2O2
UNII
PDF3ZL8FTK
MDL number
MFCD00000735
InChIKey
SXYFKXOFMCIXQW-UHFFFAOYSA-N
InChI
InChI=1S/C3H2Cl2O2/c4-2(6)1-3(5)7/h1H2
SMILES (canonical and isomeric)
C(C(=O)Cl)C(=O)Cl

Synonyms

  • Malonyl chloride
  • Malonyl dichloride
  • Malonoyl chloride
  • Malonic acid dichloride
  • Malonic acid chloride
  • Malonoyl dichloride
  • methane-1,1-dicarbonyl chloride
  • malonylchlorid
  • Malonylchloride
  • malonyldichloride
  • Malonyl dicloride
  • 1,3-Dichloro-1,3-propanedione
  • Malonyl chloride, 97%

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

Physical form
Liquidexp.

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
140.95 g/molcalc.
Exact mass
139.9432 Dacalc.
LogP (octanol/water)
0.91calc.
Topological polar surface area
34.14 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.33calc.
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
GHS05: Corrosive
Corrosive

Hazard statements

  • H226Flammable liquid and vapour.
  • H314Causes severe skin burns and eye damage.
Precautionary statements (21)
  • 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.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • 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.
  • 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.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • 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

Propanedioyl dichloride suppliers

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Where suppliers are based

1 supplier in 1 country

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Propanedioyl dichloride price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Propanedioyl dichloride is traded under.

HS 2917.19Indicative HS code

Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and…

World exports in 2024
$718M
+8.1% vs 2023, imports $915M
2019 to 2024
Top exporters
  1. China46.6%
  2. United States13.7%
  3. Germany10.1%
Top importers
  1. United States16.2%
  2. Denmark11.8%
  3. Germany10.0%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Propanedioyl dichloride, based on the data on this page

What is Propanedioyl dichloride?

Propanedioyl dichloride is a chemical substance with the molecular formula C3H2Cl2O2 and a molar mass of 140.95 g/mol. Its CAS registry number is 1663-67-8.

What is the CAS number of Propanedioyl dichloride?

The CAS registry number of Propanedioyl dichloride is 1663-67-8.

What is the molecular formula and weight of Propanedioyl dichloride?

The molecular formula of Propanedioyl dichloride is C3H2Cl2O2 and its molar mass is 140.95 g/mol.

Is Propanedioyl dichloride hazardous?

Propanedioyl dichloride carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, causes severe skin burns and eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Propanedioyl dichloride?

Propanedioyl dichloride is usually classified under HS code 291719 (Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Propanedioyl dichloride?

CompoundList lists 1 supplier of Propanedioyl dichloride in India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Propanedioyl dichloride in India?

1 supplier in India list Propanedioyl dichloride on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Propanedioyl dichloride?

Suppliers quote Propanedioyl dichloride 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 Propanedioyl dichloride

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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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