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Herbicides

Chloral

Also known as Trichloroacetaldehyde, 2,2,2-Trichloroacetaldehyde, Acetaldehyde, trichloro-

CAS 75-87-6Formula C2HCl3OMolar mass 147.39 g/molEC 200-911-5
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Harmful or irritant 22 suppliers listed Drug substance
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Chloral chemical structure, C2HCl3O, CAS 75-87-6
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless, mobile, oily liquid
Melting point
-57.5 °C
Boiling point
97.8 °C
Density
1.510 at 20 °C/4 °C, 1.404 at 25 °C/4 °C
Flash point
75 °C
HS code
291300
Category
Herbicides
UN number
UN 2075
Illustrative photo, a 1000 litre IBC tote of clear liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Chloral?

Plain description, key identifiers and synonyms

Trichloroacetaldehyde is an organochlorine compound that consists of acetaldehyde where all the methyl hydrogens are replaced by chloro groups. It has a role as a mouse metabolite. It is an aldehyde and an organochlorine compound. It is functionally related to an acetaldehyde.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2,2,2-trichloroacetaldehyde
CAS number
75-87-6 CAS number cross-checkedOther or deprecated CAS: 25154-92-1
EC number
200-911-5
Molecular formula
C2HCl3O
UNII
FLI06WS32H
MDL number
MFCD00036214
InChIKey
HFFLGKNGCAIQMO-UHFFFAOYSA-N
InChI
InChI=1S/C2HCl3O/c3-2(4,5)1-6/h1H
SMILES (canonical and isomeric)
C(=O)C(Cl)(Cl)Cl

Synonyms

  • Trichloroacetaldehyde
  • 2,2,2-Trichloroacetaldehyde
  • Acetaldehyde, trichloro-
  • Trichloroethanal
  • Anhydrous chloral
  • Grasex
  • Cloralio
  • Tri-chloro-acetaldehyde
  • Chloral (IUPAC)
  • 2,2,2-Trichloroethanal
  • Trichloroacetaldehyd
  • acetaldehyde, trichloro
  • RCRA waste number U034
  • Acetaldehyde,2,2,2-trichloro-
  • Acetaldehyde, 2,2,2-trichloro-
  • RCRA waste no. U034
  • Trichloracetaldehyde
  • CCl3CHO
  • Trichloro-Acetaldehyde
  • Ethanal, trichloro-
  • 4-01-00-03142 (Beilstein Handbook Reference)
  • Chloral, anhydrous, inhibited
  • UN 2075 (Salt/Mix)
  • 2,2,2-Trichloroacetaldehyde - anhydrous
  • chloral, acetaldehyde, 2,2,2-trichloro-, trichloroethanal, trichloroacetaldehyde, acetaldehyde, trichloro-, chloral, anhydrous

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, mobile, oily liquidexp.
Odour
Pungent, irritating odorexp.
Melting point
-57.5 °Cexp.
Boiling point
97.8 °Cexp.
Density
1.510 at 20 °C/4 °C, 1.404 at 25 °C/4 °Cexp.
Flash point
75 °Cexp.
Solubility
Freely soluble in water forming chloral hydrateexp.
Vapour pressure
VP: 35 mm Hg at 20 °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
147.39 g/molcalc.
Exact mass
145.9093 Dacalc.
LogP (octanol/water)
1.56calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
6calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
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
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H330Fatal if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (23)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • 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.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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 2075
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

Chloral suppliers

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

All 22 suppliers
22 of 22 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

22 suppliers in 8 countries

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Chloral 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

Manufacture of chloral hydrate and DDT.

Used in spraying & pouring of polyurethanes.

Chemical intermediate for the herbicide trichloroacetic acid, for chloral hydrate.

Used to induce swelling of starch granules at room temperature.

Industrial uses: Binder.

Roles

  • animal metabolite
  • eukaryotic metabolite
  • mammalian metabolite
  • metabolite
  • mouse metabolite

How it is made

(1) By chlorination of ethyl alcohol, addition of sulfuric acid, and subsequent distillation, (2) by chlorination of acetaldehyde.

By chlorination of mixt of alc & acetaldehyde: societe d'electrochimie, french patent 612,396, chimie et industrie 21, 567 (1929). Prepn from chloral hydrate by azeotropic distillation: mahoney, pierson, us patent 2,584,036 (1952 to merck & co). From hypochlorous acid & trichloroethylene: stevens et al, us patent 2,759,978 (1956 to columbia-southern).

Read more

In lab anhyd chloral may be quickly obtained by shaking pharmaceutical grade chloral hydrate with concentrated h2so4, separating the two layers, & distilling: compare gatterman, wieland, praxis des organischen chemikers (de gruyter, berlin, 40th ed, 1961) p 334.

By the chlorination of ethyl alcohol, addition of sulfuric acid and subsequent distillation.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

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 Chloral is traded under.

HS 2913.00Indicative HS code

Halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912

World exports in 2024
$53.8M
−28.4% vs 2023, imports $62M
2019 to 2024
Top exporters
  1. China62.0%
  2. India * partner reported22.7%
  3. Japan6.6%
Top importers
  1. India * partner reported37.9%
  2. Japan9.9%
  3. Germany7.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Chloral?

Trichloroacetaldehyde is an organochlorine compound that consists of acetaldehyde where all the methyl hydrogens are replaced by chloro groups. It has a role as a mouse metabolite. It is an aldehyde and an organochlorine compound. It is functionally related to an acetaldehyde.

What is the CAS number of Chloral?

The CAS registry number of Chloral is 75-87-6. Other or deprecated CAS numbers: 25154-92-1.

What is the molecular formula and weight of Chloral?

The molecular formula of Chloral is C2HCl3O and its molar mass is 147.39 g/mol.

What is Chloral used for?

Manufacture of chloral hydrate and DDT. Used in spraying & pouring of polyurethanes. Chemical intermediate for the herbicide trichloroacetic acid, for chloral hydrate. Used to induce swelling of starch granules at room temperature. Industrial uses: Binder.

Is Chloral hazardous?

Chloral carries the GHS signal word "Danger". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Chloral?

Chloral is usually classified under HS code 291300 (Halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Chloral?

CompoundList lists 22 suppliers of Chloral in China, India, Singapore, United States and 4 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Chloral in India?

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

What is the price of Chloral?

Suppliers quote Chloral 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 Chloral

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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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