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Insecticides and acaricides

Dioxathion

Also known as Dioxation, Delnatex, Deltic

CAS 78-34-2Formula C12H26O6P2S4Molar mass 456.55 g/molEC 201-107-7
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Hazardous to the environment
Get quotes Safety data
Dioxathion chemical structure, C12H26O6P2S4, CAS 78-34-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Tan liquid
Melting point
-20 °C
Boiling point
60 to 67.8
Density
Relative density (water = 1): 1.26 (26 °C)
Solubility
PRACTICALLY INSOL IN WATER, PARTLY SOL IN HEXANE
HS code
293299
Category
Insecticides and acaricides
UN number
UN 3018
Illustrative photo, blue HDPE drums with a dark liquid sample in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Dioxathion?

Plain description, key identifiers and synonyms

Dioxation is a member of dioxanes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3-diethoxyphosphinothioylsulfanyl-1,4-dioxan-2-yl)sulfanyl-diethoxy-sulfanylidene-λ5-phosphane
CAS number
78-34-2 CAS number cross-checked
EC number
201-107-7
Molecular formula
C12H26O6P2S4
UNII
J2DF82JA7N
InChIKey
VBKKVDGJXVOLNE-UHFFFAOYSA-N
InChI
InChI=1S/C12H26O6P2S4/c1-5-15-19(21,16-6-2)23-11-12(14-10-9-13-11)24-20(22,17-7-3)18-8-4/h11-12H,5-10H2,1-4H3
SMILES (canonical and isomeric)
CCOP(=S)(OCC)SC1C(OCCO1)SP(=S)(OCC)OCC

Synonyms

  • Dioxation
  • Delnatex
  • Deltic
  • Navadel
  • Delnav
  • Dioxane phosphate
  • Kavadel
  • Hercules ac528
  • Delanov
  • Hercules 528
  • Co-Nav
  • Dioxationum
  • AC 528
  • ENT 22,897
  • p-Dioxane-2,3-diyl ethyl phosphorodithioate
  • 2,3-Bis(diethoxyphosphinothioylthio)-1,4-dioxane
  • Phosphorodithioic acid, S,S'-1,4-dioxane-2,3-diyl O,O,O',O'-tetraethyl ester
  • 1,4-Dioxan-2,3-diyl bis(O,O-diethyl phosphorothiolothionate)
  • 2,3-p-Dioxandithiol S,S-bis(O,O-diethyl phosphorodithioate)
  • 2,3-p-Dioxanedithiol S,S-bis(O,O-diethyl phosphorodithioate)
  • S,S'-(p-Dioxane-2,3-diyl)bis(O,O-diethylphosphorodithioate)
  • 2,3-P-Dioxan-S,S'-bis(O,O-diaethyldithiophosphat)
  • 1,4-Diossan-2,3-diyl-bis(O,O-dietil-ditiofosfato)
  • p-Dioxane-2,3-dithiol, S,S-diester with O,O-diethyl phosphorodithioate
  • S,S'-(1,4-Dioxane-2,3-diyl) O,O,O',O'-tetraethyl bis(phosphorodithioate)
Show all 38 synonyms
  • 1,4-Dioxaan-2,3-diyl-bis(O,O-diethyl-dithiofosfaat)
  • Phosphorodithioic acid, S,S'-p-dioxane-2,3-diyl O,O,O',O'-tetraethyl ester
  • 1,4-Dioxan-2,3-diyl-bis(O,O-diaethyl-dithiophosphat)
  • 1,4-Dioxan-2,3-diyl bis(O,O-diethylphosphorothiolothionate)
  • S,S'-1,4-Dioxane-2,3-diyl bis(O,O-diethyl phosphorodithioate)
  • 1,4-Dioxan-2,3-diyl O,O,O',O'-tetraethyl di(phosphorodithioate)
  • Bis(dithiophosphate de O,O-diethyle) de S,S'-(1,4-dioxanne-2,3-diyle)
  • 1,4-Diossan-2,3-diil-bis(O,O-dietil-ditiofosfato)
  • 2,3-p-Dioxane S,S-bis(O,O-diethylphosphorodithioate)
  • Dioxothion
  • 1,4-Dioxan-2,3-diyl O,O,O',O'-tetraethyl di(phosphoromithioate)
  • ENT 22879
  • 2,3-dioxanedithiol-S,S-bis(O,O-diethyl phosphorodithioate)

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
Tan liquidexp.
Melting point
-20 °Cexp.
Boiling point
60 to 67.8exp.
Density
Relative density (water = 1): 1.26 (26 °C)exp.
Solubility
PRACTICALLY INSOL IN WATER, PARTLY SOL IN HEXANEexp.
Vapour pressure
17.8 mmHg at 77 °Fexp.

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
456.55 g/molcalc.
Exact mass
456.0087 Dacalc.
LogP (octanol/water)
4.75calc.
Topological polar surface area
55.38 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
10calc.
Rotatable bonds
12calc.
Heavy atoms
24calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
2calc.
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, C1COCCO1

C1COCCO1

1 ring, 6 atoms, the 1,4-Dioxane ring system.

537 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)
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H300Fatal if swallowed.
  • H311Toxic in contact with skin.
  • H330Fatal if inhaled.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (20)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory 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.
  • P316Get emergency medical help immediately.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3018
Transport hazard class
6.1
Packing group
II

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

Dioxathion suppliers

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Dioxathion 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

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.".

Insecticide, acaricide.

General-purpose insecticide and acaricide for deciduous fruit.

Control of insects and mites on apples, pears, peas, strawberries, grapes, quince, walnuts, and ornamentals.

Use classes: Insecticides.

How it is made

Reaction of 2,3-dichloro-p-dioxane or 2,3-dibromo-p-dioxane with sodium o,o-diethyl phosphorodithioate

From 2,3-dichloro-p-dioxane & o,o-diethyl hydrogen phosphorodithioate, or from p-dioxene & bis(diethoxyphosphinothioyl)-disulfide: diveley, lohr, speck, us patents 2,725,328 & 2,815,350 (1955, 1957 both to hercules), diveley et al, j am chem soc 81, 139 (1959)

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 015-063-00-X

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Dioxathion?

Dioxation is a member of dioxanes.

What is the CAS number of Dioxathion?

The CAS registry number of Dioxathion is 78-34-2.

What is the molecular formula and weight of Dioxathion?

The molecular formula of Dioxathion is C12H26O6P2S4 and its molar mass is 456.55 g/mol.

What is Dioxathion used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". Insecticide, acaricide. General-purpose insecticide and acaricide for deciduous fruit. Control of insects and mites on apples, pears, peas, strawberries, grapes, quince, walnuts, and ornamentals.

Is Dioxathion hazardous?

Dioxathion carries the GHS signal word "Danger". Main hazards: fatal if swallowed, toxic in contact with skin, fatal if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dioxathion?

Dioxathion is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dioxathion?

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What is the price of Dioxathion?

Suppliers quote Dioxathion 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 Dioxathion

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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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