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Fungicides

Sodium 2,4,5-trichlorophenolate

Also known as 2,4,5-Trichlorophenol sodium salt, Dowicide B, Preventol 1

CAS 136-32-3Formula C6H2Cl3NaOMolar mass 219.43 g/molEC 205-239-6
GHS signal word: Danger. Pictograms: Acute toxicity (severe) 1 supplier listed
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Sodium 2,4,5-trichlorophenolate chemical structure, C6H2Cl3NaO, CAS 136-32-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
136-32-3
Formula
C6H2Cl3NaO
Density
BUFF TO LIGHT BROWN FLAKES, BULK DENSITY: 28-33 LB/CU FT /SODIUM 2,4,5-TRICHLOROPHENOLAT…
Solubility
113 g/100 g water @ 25 °C /sodium 2,4,5-trichlorophenolate sesquihydrate/
HS code
290819
Category
Fungicides

What is Sodium 2,4,5-trichlorophenolate?

Plain description, key identifiers and synonyms

Sodium 2,4,5-trichlorophenolate is a chemical substance with the molecular formula C6H2Cl3NaO and a molar mass of 219.43 g/mol. Its CAS registry number is 136-32-3.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
sodium 2,4,5-trichlorophenolate
CAS number
136-32-3 CAS number cross-checked
EC number
205-239-6
Molecular formula
C6H2Cl3NaO
UNII
834193HS9A
MDL number
MFCD00058974
InChIKey
KWFOMJTYKROHLX-UHFFFAOYSA-M
InChI
InChI=1S/C6H3Cl3O.Na/c7-3-1-5(9)6(10)2-4(3)8;/h1-2,10H;/q;+1/p-1
SMILES (canonical and isomeric)
C1=C(C(=CC(=C1Cl)Cl)Cl)[O-].[Na+]

Synonyms

  • 2,4,5-Trichlorophenol sodium salt
  • Dowicide B
  • Preventol 1
  • Phenol, 2,4,5-trichloro-, sodium salt
  • Sodium 2,4,5-trichlorophenate
  • Sodium 2,4,5-trichlorophenoxide
  • Sodium, (2,4,5-trichlorophenoxy)-
  • Sodium salt of 2,4,5-trichlorophenol
  • 2,4,5-Trichlorophenol, sodium salt
  • Phenol, 2,4,5-trichloro-, sodium salt (1:1)
  • Sodium 2,4,5trichlorophenate
  • Sodium 2,4,5trichlorophenoxide
  • 2,4,5Trichlorophenol sodium salt
  • Sodium, (2,4,5trichlorophenoxy)
  • 2,4,5Trichlorophenol, sodium salt
  • Sodium salt of 2,4,5trichlorophenol
  • Phenol, 2,4,5trichloro, sodium salt
  • sodium, 2,4,5-trichlorophenolate
  • Sodium2,4,5-trichlorophenolate

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

Density
BUFF TO LIGHT BROWN FLAKES, BULK DENSITY: 28-33 LB/CU FT /SODIUM 2,4,5-TRICHLOROPHENOLATE SESQUIHYDRATE/exp.
Solubility
113 g/100 g water @ 25 °C /sodium 2,4,5-trichlorophenolate sesquihydrate/exp.

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
219.43 g/molcalc.
Exact mass
217.9069 Dacalc.
LogP (octanol/water)
-0.28calc.
Topological polar surface area
23.06 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
11calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 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)

Hazard statements

  • H302Harmful if swallowed.
  • H311Toxic in contact with skin.
  • H331Toxic if inhaled.
Precautionary statements (16)
  • P261Avoid breathing 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.
  • 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.
  • P316Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P361 + P364Take off immediately all 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

Sodium 2,4,5-trichlorophenolate suppliers

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Where suppliers are based

1 supplier in 1 country

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Sodium 2,4,5-trichlorophenolate price

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Uses and applications

What the substance is used for, by industry and function

Used as a fungicide and bactericide. Uses include: adhesives, as with 2,4,5-trichlorophenol, in cooling water as an inhibitor of microbial growth in recirculating water, in foundry core wash, to prevent breakdown of oils and scum formation, in leather dressing and finishes, to prevent the decomposition of nitrogenous compounds, in metal working fluids, to prevent breakdown of oils, emulsifying agent and other components.

How it is made

Basic hydrolysis of 1,2,4,5-tetrachlorobenzene followed by formation of the sodium salt

Dowicide b: flakes (prepn according to us patent 1,991,329 (1935 to dow)) (sodium salt sesquihydrate), prepn of complex with triisobutyl phosphate: bouillenne-wallrand et al, french patent m149 (1961 to pechiney) (complex with triisobutyl phosphate).

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Sodium 2,4,5-trichlorophenolate is traded under.

HS 2908.19Indicative HS code

Derivatives containing only halogen substituents and their salts, other

World exports in 2024
$452M
−8.2% vs 2023, imports $435M
2019 to 2024
Top exporters
  1. Jordan * partner reported36.5%
  2. Israel29.6%
  3. China6.5%
Top importers
  1. China58.6%
  2. South Korea10.3%
  3. United States5.5%

* Partner reported figures, a lower bound.

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

The HS code shown for Sodium 2,4,5-trichlorophenolate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Sodium 2,4,5-trichlorophenolate, based on the data on this page

What is Sodium 2,4,5-trichlorophenolate?

Sodium 2,4,5-trichlorophenolate is a chemical substance with the molecular formula C6H2Cl3NaO and a molar mass of 219.43 g/mol. Its CAS registry number is 136-32-3.

What is the CAS number of Sodium 2,4,5-trichlorophenolate?

The CAS registry number of Sodium 2,4,5-trichlorophenolate is 136-32-3.

What is the molecular formula and weight of Sodium 2,4,5-trichlorophenolate?

The molecular formula of Sodium 2,4,5-trichlorophenolate is C6H2Cl3NaO and its molar mass is 219.43 g/mol.

What is Sodium 2,4,5-trichlorophenolate used for?

Used as a fungicide and bactericide. Uses include: adhesives, as with 2,4,5-trichlorophenol, in cooling water as an inhibitor of microbial growth in recirculating water, in foundry core wash, to prevent breakdown of oils and scum formation, in leather dressing and finishes, to prevent the decomposition of nitrogenous…

Is Sodium 2,4,5-trichlorophenolate hazardous?

Sodium 2,4,5-trichlorophenolate carries the GHS signal word "Danger". Main hazards: harmful if swallowed, toxic in contact with skin, toxic if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Sodium 2,4,5-trichlorophenolate?

Sodium 2,4,5-trichlorophenolate is usually classified under HS code 290819 (Derivatives containing only halogen substituents and their salts, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Sodium 2,4,5-trichlorophenolate?

CompoundList lists 1 supplier of Sodium 2,4,5-trichlorophenolate in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Sodium 2,4,5-trichlorophenolate?

Suppliers quote Sodium 2,4,5-trichlorophenolate 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 Sodium 2,4,5-trichlorophenolate

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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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