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Herbicides

Bixlozone

Also known as 2-(2,4-Dichlorobenzyl)-4,4-dimethylisoxazolidin-3-one, Overwatch, 2-[(2,4-dichlorophenyl)methyl]-4,4-dimethyl-1,2-oxazolidin-3-one

CAS 81777-95-9Formula C12H13Cl2NO2Molar mass 274.15 g/molEC 701-330-4
GHS signal word: Warning. Pictograms: Hazardous to the environment
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Bixlozone chemical structure, C12H13Cl2NO2, CAS 81777-95-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
81777-95-9
Formula
C12H13Cl2NO2
Molar mass
274.15 g/mol
EC number
701-330-4
HS code
293499
Category
Herbicides

What is Bixlozone?

Plain description, key identifiers and synonyms

Bixlozone is an isoxazolidinone that is 1,2-oxazolidin-3-one substituted by a 2,4-dichlorobenzyl group at position 2 and two methyl groups at position 4. It is a herbicide used for the control of annual ryegrass (including herbicide resistant biotypes) and regionally specific broadleaf weeds. It has a role as a carotenoid biosynthesis inhibitor, a herbicide and an agrochemical. It is a dichlorobenzene and an isoxazolidinone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[(2,4-dichlorophenyl)methyl]-4,4-dimethyl-1,2-oxazolidin-3-one
CAS number
81777-95-9 CAS number cross-checked
EC number
701-330-4
Molecular formula
C12H13Cl2NO2
UNII
K8T8B88NZ6
MDL number
MFCD30548324
InChIKey
FHUKASKVKWSLCY-UHFFFAOYSA-N
InChI
InChI=1S/C12H13Cl2NO2/c1-12(2)7-17-15(11(12)16)6-8-3-4-9(13)5-10(8)14/h3-5H,6-7H2,1-2H3
SMILES (canonical and isomeric)
CC1(CON(C1=O)CC2=C(C=C(C=C2)Cl)Cl)C

Synonyms

  • 2-(2,4-Dichlorobenzyl)-4,4-dimethylisoxazolidin-3-one
  • Overwatch
  • 2-[(2,4-dichlorophenyl)methyl]-4,4-dimethyl-1,2-oxazolidin-3-one
  • Isoflex active
  • 2-((2,4-Dichlorophenyl)methyl)-4,4-dimethyl-3-isoxazolidinone
  • 2-((2,4-Dichlorophenyl)methyl)-4,4-dimethyl-1,2-oxazolidin-3-one
  • 2-(2,4-dichlorobenzyl)-4,4-dimethyl-1,2-oxazolidin-3-one
  • 2-[(2,4-dichlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone
  • 3-Isoxazolidinone, 2-[(2,4-dichlorophenyl)methyl]-4,4-dimethyl-
  • 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidinone
  • Bixlozone 100 mug/ml Acetonitrile
  • Bixlozone 100 mug/mL in Acetonitrile
  • Bixlozone 100 microg/mL in Acetonitrile
  • 2-[(2,4-dichlorophenyl)methyl]-4,4-dimethyl-isoxazolidin-3-one

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
274.15 g/molcalc.
Exact mass
273.0323 Dacalc.
LogP (octanol/water)
3.29calc.
Topological polar surface area
29.54 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
17calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.42calc.
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=C1CCON1Cc1ccccc1

O=C1CCON1Cc1ccccc1

2 rings, 13 atoms.

39 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (3)
  • P273Avoid release to the environment.
  • P391Collect spillage.
  • 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

Bixlozone suppliers

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Bixlozone 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
  • carotenoid biosynthesis inhibitor
  • enzyme inhibitor
  • herbicide
  • pathway inhibitor
  • 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 Bixlozone is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Bixlozone?

Bixlozone is an isoxazolidinone that is 1,2-oxazolidin-3-one substituted by a 2,4-dichlorobenzyl group at position 2 and two methyl groups at position 4. It is a herbicide used for the control of annual ryegrass (including herbicide resistant biotypes) and regionally specific broadleaf weeds.

What is the CAS number of Bixlozone?

The CAS registry number of Bixlozone is 81777-95-9.

What is the molecular formula and weight of Bixlozone?

The molecular formula of Bixlozone is C12H13Cl2NO2 and its molar mass is 274.15 g/mol.

What is Bixlozone used for?

Known uses and roles of Bixlozone include herbicides in agriculture and crop protection, agrochemical, carotenoid biosynthesis inhibitor, enzyme inhibitor, herbicide and 2 more.

Is Bixlozone hazardous?

Bixlozone carries the GHS signal word "Warning". Main hazards: 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 Bixlozone?

Bixlozone is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Bixlozone?

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What is the price of Bixlozone?

Suppliers quote Bixlozone 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 Bixlozone

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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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