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Nitriles, nitro and azo compounds

Chloroxynil

Also known as 3,5-Dichloro-4-hydroxybenzonitrile, Benzonitrile, 3,5-dichloro-4-hydroxy-, 3,5-Dichloro-4-hydroxy-benzonitrile

CAS 1891-95-8Formula C7H3Cl2NOMolar mass 188.01 g/molEC 217-572-4
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Harmful or irritant 2 suppliers listed
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Chloroxynil chemical structure, C7H3Cl2NO, CAS 1891-95-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1891-95-8
Formula
C7H3Cl2NO
Molar mass
188.01 g/mol
EC number
217-572-4
HS code
292690
Category
Nitriles, nitro and azo compounds

What is Chloroxynil?

Plain description, key identifiers and synonyms

Chloroxynil is a chemical substance with the molecular formula C7H3Cl2NO and a molar mass of 188.01 g/mol. Its CAS registry number is 1891-95-8. The IUPAC name is 3,5-dichloro-4-hydroxybenzonitrile.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3,5-dichloro-4-hydroxybenzonitrile
CAS number
1891-95-8 CAS number cross-checked
EC number
217-572-4
Molecular formula
C7H3Cl2NO
UNII
GI6X21WSVN
MDL number
MFCD00002177
InChIKey
YRSSHOVRSMQULE-UHFFFAOYSA-N
InChI
InChI=1S/C7H3Cl2NO/c8-5-1-4(3-10)2-6(9)7(5)11/h1-2,11H
SMILES (canonical and isomeric)
C1=C(C=C(C(=C1Cl)O)Cl)C#N

Synonyms

  • 3,5-Dichloro-4-hydroxybenzonitrile
  • Benzonitrile, 3,5-dichloro-4-hydroxy-
  • 3,5-Dichloro-4-hydroxy-benzonitrile
  • Yrsshovrsmqule-uhfffaoysa-
  • 2,6-Dichloro-4-cyanophenol
  • 3,5-dichloro-4-hydroxybenzenecarbonitrile
  • benzenecarbonitrile, 3,5-dichloro-4-hydroxy-
  • Chloroxynil, PESTANAL(R), analytical standard
  • 2,6-Dichloro-4-cyanophenol, 3,5-Dichloro-4-hydroxybenzonitrile

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
188.01 g/molcalc.
Exact mass
186.9592 Dacalc.
LogP (octanol/water)
2.57calc.
Topological polar surface area
44.02 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
11calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
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
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H301Toxic if swallowed.
  • H311Toxic in contact with skin.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H331Toxic if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (22)
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face 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 + 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.
  • 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.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • 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.

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

Chloroxynil suppliers

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

All 2 suppliers
  • AOBChem USA
    United States, Los AngelesUnclaimed profile
    ChloroxynilGrade, purity and minimum order on request
    Price on request
    View
  • Halochem Co., Ltd.
    China, HangzhouUnclaimed profile
    ChloroxynilGrade, purity and minimum order on request
    Price on request
    View

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

2 suppliers in 2 countries

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Chloroxynil 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

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Chloroxynil is traded under.

HS 2926.90Indicative HS code

Nitrile-function compounds, other

World exports in 2024
$2.15B
−13.5% vs 2023, imports $2.17B
2019 to 2024
Top exporters
  1. China35.6%
  2. France * partner reported12.7%
  3. India * partner reported11.2%
Top importers
  1. United States13.6%
  2. China12.4%
  3. Brazil11.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Chloroxynil?

Chloroxynil is a chemical substance with the molecular formula C7H3Cl2NO and a molar mass of 188.01 g/mol. Its CAS registry number is 1891-95-8. The IUPAC name is 3,5-dichloro-4-hydroxybenzonitrile.

What is the CAS number of Chloroxynil?

The CAS registry number of Chloroxynil is 1891-95-8.

What is the molecular formula and weight of Chloroxynil?

The molecular formula of Chloroxynil is C7H3Cl2NO and its molar mass is 188.01 g/mol.

What is Chloroxynil used for?

Known uses and roles of Chloroxynil include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Chloroxynil hazardous?

Chloroxynil carries the GHS signal word "Danger". Main hazards: toxic 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 Chloroxynil?

Chloroxynil is usually classified under HS code 292690 (Nitrile-function compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Chloroxynil?

CompoundList lists 2 suppliers of Chloroxynil in China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Chloroxynil?

Suppliers quote Chloroxynil 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 Chloroxynil

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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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