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Herbicides

Chloroxuron

Also known as Chloroxifenidim, Gesamoos, Norex

CAS 1982-47-4Formula C15H15ClN2O2Molar mass 290.75 g/molEC 217-843-7
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 1 supplier listed
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Chloroxuron chemical structure, C15H15ClN2O2, CAS 1982-47-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White crystals
Melting point
151 °C
Density
1.34 g/cm³ (20 °C)
Solubility
AT 20 °C: 4 MG/L WATER, 44 G/KG ACETONE, 106 G/KG DICHLOROMETHANE, 35 G/KG METHANOL, 4 G…
HS code
292421
Category
Herbicides
UN number
UN 3077
Illustrative photo, colourless crystals beside a jumbo bulk bag in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Chloroxuron?

Plain description, key identifiers and synonyms

Chloroxuron is a member of the class of phenylureas that is N,N-dimethylurea in which a hydrogen of the amino group is replaced by a 4-(4-chlorophenoxy)phenyl group. It is a phenylurea herbicide used for the control of annual grasses, mosses and broad-leaved weeds. Common crop plants for which the herbicicide is useful are soy beans, onions, strawberries, and celery. It has a role as a herbicide. It is a member of phenylureas, an aromatic ether and a member of monochlorobenzenes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-[4-(4-chlorophenoxy)phenyl]-1,1-dimethylurea
CAS number
1982-47-4 CAS number cross-checked
EC number
217-843-7
Molecular formula
C15H15ClN2O2
UNII
QER23C88ME
InChIKey
IVUXTESCPZUGJC-UHFFFAOYSA-N
InChI
InChI=1S/C15H15ClN2O2/c1-18(2)15(19)17-12-5-9-14(10-6-12)20-13-7-3-11(16)4-8-13/h3-10H,1-2H3,(H,17,19)
SMILES (canonical and isomeric)
CN(C)C(=O)NC1=CC=C(C=C1)OC2=CC=C(C=C2)Cl

Synonyms

  • Chloroxifenidim
  • Gesamoos
  • Norex
  • Tenoran
  • Chlorphencarb
  • Ciba 1983
  • 3-[4-(4-Chlorophenoxy)phenyl]-1,1-dimethylurea
  • 3-(p-(p-Chlorophenoxy)phenyl)-1,1-dimethylurea
  • 3-(4-(4-Chlorophenoxy)phenyl)-1,1-dimethylurea
  • N'-4-(4-Chlorophenoxy)phenyl-N,N-dimethylurea
  • n'-[4-(4-chlorophenoxy)phenyl]-n,n-dimethylurea
  • 1-(4-(4-Chloro-phenoxy)phenyl)-3,3-D'methyluree
  • Urea, 3-(p-(p-chlorophenoxy)phenyl)-1,1-dimethyl-
  • Urea, N'-(4-(4-chlorophenoxy)phenyl)-N,N-dimethyl-
  • Urea, N'-[4-(4-chlorophenoxy)phenyl]-N,N-dimethyl-
  • 3-(4-(4-Chlor-phenoxy)-phenyl)-1,1-dimethylharnstoff
  • N'-(4-Chlorophenoxy)phenyl-N,N-dimethylurea
  • Urea, 3-[p-(p-chlorophenoxy)phenyl]-1,1-dimethyl-
  • N'-(4-(4-Chlorophenoxy)phenyl)-N,N-dimethylurea
  • 3-[p-(p-chlorophenoxy)phenyl]-1,1-dimethylurea
  • 1-[4-(4-chlorophenoxy)phenyl]-3,3-dimethylurea
  • 3-(4-(4-Chloor-fenoxy)-fenyl)-1,1-dimethylureum
  • 3-(4-(4-Chloro-fenossil)fenil)-1,1-dimetil-urea
  • Chloroxyfenidim
  • Chloroxifenidum
Show all 28 synonyms
  • 1-(4-(4-Chloro-phenoxy)phenyl)-3,3'-methyluree
  • 3-(4-(4-Cloro-fenossil)-fenossil)-1,1-dimetil-urea
  • 3-(4-(4-Chloor-fenoxy)-fenoxy)-fenyl-1,1-dimethylureum

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
White crystalsexp.
Odour
ODORLESSexp.
Melting point
151 °Cexp.
Density
1.34 g/cm³ (20 °C)exp.
Solubility
AT 20 °C: 4 MG/L WATER, 44 G/KG ACETONE, 106 G/KG DICHLOROMETHANE, 35 G/KG METHANOL, 4 G/KG TOLUENE.exp.
Vapour pressure
239 nPa @ 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
290.75 g/molcalc.
Exact mass
290.0822 Dacalc.
LogP (octanol/water)
4.23calc.
Topological polar surface area
41.57 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
20calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.13calc.
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, c1ccc(Oc2ccccc2)cc1

c1ccc(Oc2ccccc2)cc1

2 rings, 13 atoms, the Diphenyl ether ring system.

9,579 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
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H332Harmful if inhaled.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (7)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3077

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

Chloroxuron suppliers

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Where suppliers are based

1 supplier in 1 country

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Chloroxuron 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

Selective herbicide ... pre- and post-emergence control of annual broad-leaved weeds and some grasses in peas, beans, carrots, celery, celeriac, onions, leeks, garlic, chives, fennel, parsley, dill, tomatoes, cucurbits, soya beans, strawberries, ornamentals, fruit trees, and conifers. Control of mosses in ornamental and sports turf, on paths and non-crop land, and in glasshouses. (Former use).

Use classes: Herbicides, Pharmaceuticals.

Roles

  • herbicide
  • pesticide

How it is made

Reaction of phosgene with p-chlorophenoxyaniline to produce 4(4'-chlorophenoxy)phenylisocyanate, followed by reaction of this with dimethylamine.

React p-chlorophenoxy-phenylurea or p-chloro-phenoxy-phenyl isocyanate with dimethylamine.

P-Chlorophenol + p-chloronitrobenzene + dimethylcarbamoyl chloride (ether formation/nitro reduction/ dehydrochlorination)

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 Chloroxuron is traded under.

HS 2924.21Indicative HS code

Ureines and their derivatives, salts thereof

World exports in 2024
$149M
+12.5% vs 2023, imports $208M
2019 to 2024
Top exporters
  1. Germany25.4%
  2. China14.4%
  3. Israel12.0%
Top importers
  1. Brazil28.2%
  2. United States14.0%
  3. Japan10.0%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Chloroxuron?

Chloroxuron is a member of the class of phenylureas that is N,N-dimethylurea in which a hydrogen of the amino group is replaced by a 4-(4-chlorophenoxy)phenyl group. It is a phenylurea herbicide used for the control of annual grasses, mosses and broad-leaved weeds.

What is the CAS number of Chloroxuron?

The CAS registry number of Chloroxuron is 1982-47-4.

What is the molecular formula and weight of Chloroxuron?

The molecular formula of Chloroxuron is C15H15ClN2O2 and its molar mass is 290.75 g/mol.

What is Chloroxuron used for?

Selective herbicide ... pre- and post-emergence control of annual broad-leaved weeds and some grasses in peas, beans, carrots, celery, celeriac, onions, leeks, garlic, chives, fennel, parsley, dill, tomatoes, cucurbits, soya beans, strawberries, ornamentals, fruit trees, and conifers.

Is Chloroxuron hazardous?

Chloroxuron carries the GHS signal word "Warning". Main hazards: harmful if inhaled, very toxic to aquatic life, very toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Chloroxuron?

Chloroxuron is usually classified under HS code 292421 (Ureines and their derivatives, salts thereof). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Chloroxuron?

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

What is the price of Chloroxuron?

Suppliers quote Chloroxuron 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 Chloroxuron

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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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