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Herbicides

Haloxydine

Also known as 3,5-Dichloro-2,6-difluoro-4-pyridinol, 3,5-dichloro-2,6-difluoropyridin-4-ol, 4-Pyridinol, 3,5-dichloro-2,6-difluoro-

CAS 2693-61-0Formula C5HCl2F2NOMolar mass 199.97 g/molEC 897-742-8
GHS signal word: Warning. Pictograms: Harmful or irritant
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Haloxydine chemical structure, C5HCl2F2NO, CAS 2693-61-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2693-61-0
Formula
C5HCl2F2NO
Molar mass
199.97 g/mol
EC number
897-742-8
HS code
293339
Category
Herbicides

What is Haloxydine?

Plain description, key identifiers and synonyms

Haloxydine is a hydroxyyridine that is 4-hydroxypyridine which is substituted by fluorines at positions 2 and 6, and by chlorines at positions 3 and 5. An obsolete herbicide, formerly used to control selective broad-leaved and grass weeds in crops such as potatoes. It has a role as an EC 2.5.1.117 (homogentisate solanesyltransferase) inhibitor, a herbicide and an agrochemical. It is a hydroxypyridine, an organochlorine compound and an organofluorine compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3,5-dichloro-2,6-difluoro-1H-pyridin-4-one
CAS number
2693-61-0 CAS number cross-checked
EC number
897-742-8
Molecular formula
C5HCl2F2NO
UNII
EY89F0C6PF
MDL number
MFCD00236690
InChIKey
MJAWMRVEIWPJRW-UHFFFAOYSA-N
InChI
InChI=1S/C5HCl2F2NO/c6-1-3(11)2(7)5(9)10-4(1)8/h(H,10,11)
SMILES (canonical and isomeric)
C1(=C(NC(=C(C1=O)Cl)F)F)Cl

Synonyms

  • 3,5-Dichloro-2,6-difluoro-4-pyridinol
  • 3,5-dichloro-2,6-difluoropyridin-4-ol
  • 4-Pyridinol, 3,5-dichloro-2,6-difluoro-
  • 2,6-Difluoro-3,5-dichloro-4-hydroxypyridine
  • 3,5-dichloro-2,6-difluoro-1H-pyridin-4-one
  • 3,5-Dichloro-2,6-difluoro-4-hydroxypyridine
  • C5HCl2F2NO
  • 4-Hydroxy-3,5-dichlorodifluoropyridine

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
199.97 g/molcalc.
Exact mass
198.9403 Dacalc.
LogP (octanol/water)
1.96calc.
Topological polar surface area
32.86 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
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, O=c1cc[nH]cc1

O=c1cc[nH]cc1

1 ring, 7 atoms, the 4-Hydroxypyridine ring system.

2,433 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • 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.
  • 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.
  • 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.
  • 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

Haloxydine suppliers

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Haloxydine price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • agrochemical
  • enzyme inhibitor
  • herbicide
  • pesticide

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 Haloxydine is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Haloxydine?

Haloxydine is a hydroxyyridine that is 4-hydroxypyridine which is substituted by fluorines at positions 2 and 6, and by chlorines at positions 3 and 5. An obsolete herbicide, formerly used to control selective broad-leaved and grass weeds in crops such as potatoes.

What is the CAS number of Haloxydine?

The CAS registry number of Haloxydine is 2693-61-0.

What is the molecular formula and weight of Haloxydine?

The molecular formula of Haloxydine is C5HCl2F2NO and its molar mass is 199.97 g/mol.

What is Haloxydine used for?

Known uses and roles of Haloxydine include herbicides in agriculture and crop protection, agrochemical, enzyme inhibitor, herbicide and pesticide.

Is Haloxydine hazardous?

Haloxydine carries the GHS signal word "Warning". 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 Haloxydine?

Haloxydine is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Haloxydine?

Post a free request on CompoundList and suppliers of Haloxydine will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Haloxydine?

Suppliers quote Haloxydine 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 Haloxydine

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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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