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Fungicides

Oxycarboxin

Also known as Oxycarboxine, Plantvax, Oxicarboxin

CAS 5259-88-1Formula C12H13NO4SMolar mass 267.31 g/molEC 226-066-2
GHS signal word: Warning. Pictograms: Harmful or irritant 4 suppliers listed
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Oxycarboxin chemical structure, C12H13NO4S, CAS 5259-88-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Off-white crystals
Melting point
119.5 to 121.5
Density
1.41 g/cm³
Flash point
219 °C
Solubility
In water, 1,400 mg/L at 25 °C
HS code
293499
Category
Fungicides
Illustrative photo, off-white powder in an open kraft paper sack in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Oxycarboxin?

Plain description, key identifiers and synonyms

Oxycarboxin is an anilide obtained by formal condensation of the amino group of aniline with the carboxy group of 2-methyl-5,6-dihydro-4,4-dioxo-1,4-oxathiine-3-carboxylic acid. A fungicide for the control of rust diseases on ornamentals, cereals and nursery trees as well as fairy rings on turf. It has a role as an EC 1.3.5.1 [succinate dehydrogenase (quinone)] inhibitor and an antifungal agrochemical. It is an anilide, a sulfone, an oxacycle, an organosulfur heterocyclic compound and an anilide fungicide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-methyl-4,4-dioxo-N-phenyl-2,3-dihydro-1,4-oxathiine-5-carboxamide
CAS number
5259-88-1 CAS number cross-checked
EC number
226-066-2
Molecular formula
C12H13NO4S
UNII
NPU5GBN17X
MDL number
MFCD00055404
InChIKey
AMEKQAFGQBKLKX-UHFFFAOYSA-N
InChI
InChI=1S/C12H13NO4S/c1-9-11(18(15,16)8-7-17-9)12(14)13-10-5-3-2-4-6-10/h2-6H,7-8H2,1H3,(H,13,14)
SMILES (canonical and isomeric)
CC1=C(S(=O)(=O)CCO1)C(=O)NC2=CC=CC=C2

Synonyms

  • Oxycarboxine
  • Plantvax
  • Oxicarboxin
  • Dcmod
  • Vitavax sulfone
  • Carboxin sulfone
  • Plantvax 20
  • F 461 (Pesticide)
  • Rendor
  • 6-methyl-4,4-dioxo-N-phenyl-2,3-dihydro-1,4-oxathiine-5-carboxamide
  • 5,6-Dihydro-2-methyl-1,4-oxathiin-3-carboxanilide 4,4-dioxide
  • 5,6-Dihydro-2-methyl-N-phenyl-1,4-oxathiin-3-carboxamide 4,4-dioxide
  • 1,4-Oxathiin-3-carboxamide, 5,6-dihydro-2-methyl-N-phenyl-, 4,4-dioxide
  • 1,4-Oxathiin-3-carboxanilide, 5,6-dihydro-2-methyl-, 4,4-dioxide
  • 1,4-Oxathiin, 2,3-dihydro-5-carboxanilido-6-methyl-, 4,4-dioxide
  • 2,3-Dihydro-5-carboxanilido-6-methyl-1,4-oxathiin, 4,4-dioxide
  • 2,3-Dihydro-6-methyl-5-phenylcarbamoyl-1,4-oxathiin 4,4-dioxide
  • 5,6-Dihydro-2-methyl-1,4-oxathi-ine-3-carboxanilide 4,4-dioxide
  • Vitavex
  • Dioxide of vitavax
  • 2-Methyl-N-phenyl-5,6-dihydro-1,4-oxathiine-3-carboxamide 4,4-dioxide
  • 5,6-Dihydro-2-methyl-3-carboxanilido-1,4-oxathiin-4,4-dioxid
  • Dihydro-2-methyl-1,4-oxathiin-3-carboxanilide 4,4-dioxide
  • 2-methyl-4,4-dioxo-N-phenyl-5,6-dihydro-1,4-oxathiine-3-carboxamide
  • Oxycarboxine [ISO-French]
Show all 34 synonyms
  • F 461 (VAN)
  • Oxykisvax
  • (6-methyl-4,4-dioxo(2,3-dihydro-1,4-oxathiin-5-yl))-N-benzamide
  • carboxin TP2
  • Carboxin sulfone M0
  • DCMOO
  • Methyl-6 phenylcarbamoyl-5 dihydro-2,3 oxathiine-1,4-dioxyde-4,4
  • Plantvax 75 (Salt/Mix)
  • MixCom1_000230

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
Off-white crystalsexp.
Melting point
119.5 to 121.5exp.
Density
1.41 g/cm³exp.
Flash point
219 °Cexp.
Solubility
In water, 1,400 mg/L at 25 °Cexp.
Vapour pressure
4.2 × 10⁻⁸ mm Hgexp.

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
267.31 g/molcalc.
Exact mass
267.0565 Dacalc.
LogP (octanol/water)
1.3calc.
Topological polar surface area
72.47 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
2calc.
Heavy atoms
18calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.25calc.
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=C(Nc1ccccc1)C1=COCCS1(=O)=O

O=C(Nc1ccccc1)C1=COCCS1(=O)=O

2 rings, 17 atoms.

No other chemical in our database has 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.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (6)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • 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

Oxycarboxin suppliers

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Where suppliers are based

4 suppliers in 4 countries

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Oxycarboxin 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

Systemic fungicide, Foliar application for rust on carnations and geraniums (greenhouse only).

Plantvax was effective in controlling Udbatta disease of rice caused by Ephelis oryzae.

Oxycarboxin was excellent against stripe rust (Puccinia striiformis), good against stripe smut (Ustilago striiformis), & completely eradicated flag smut (Urocystis agropyri) after soil application.

Use classes: Pesticide transformation products.

Roles

  • agrochemical
  • antifungal agent
  • antifungal agrochemical
  • antimicrobial agent
  • enzyme inhibitor
  • fungicide
  • pesticide

How it is made

Oxycarboxin is produced by oxidation of oxathiin, which is prepared by reaction of acetoacetanilide with sulfonyl chloride, followed by treatment with a potassium hydroxide solution and then with 2-mercaptoethanol.

By oxidation of vitavax with hydrogen peroxide.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 006-060-00-4

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Oxycarboxin 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 Oxycarboxin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Oxycarboxin?

Oxycarboxin is an anilide obtained by formal condensation of the amino group of aniline with the carboxy group of 2-methyl-5,6-dihydro-4,4-dioxo-1,4-oxathiine-3-carboxylic acid. A fungicide for the control of rust diseases on ornamentals, cereals and nursery trees as well as fairy rings on turf.

What is the CAS number of Oxycarboxin?

The CAS registry number of Oxycarboxin is 5259-88-1.

What is the molecular formula and weight of Oxycarboxin?

The molecular formula of Oxycarboxin is C12H13NO4S and its molar mass is 267.31 g/mol.

What is Oxycarboxin used for?

Systemic fungicide, Foliar application for rust on carnations and geraniums (greenhouse only). Plantvax was effective in controlling Udbatta disease of rice caused by Ephelis oryzae.

Is Oxycarboxin hazardous?

Oxycarboxin carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful 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 Oxycarboxin?

Oxycarboxin 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 Oxycarboxin?

CompoundList lists 4 suppliers of Oxycarboxin in Brazil, Canada, India and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Oxycarboxin in India?

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

What is the price of Oxycarboxin?

Suppliers quote Oxycarboxin 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 Oxycarboxin

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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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