CompoundList
Sign in
Herbicides

Sodium pentachlorophenolate

Also known as Sodium pentachlorophenate, Sodium pentachlorophenol, Weedbeads

CAS 131-52-2Formula C6Cl5NaOMolar mass 288.32 g/molEC 205-025-2
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Serious health hazard, Hazardous to the environment 18 suppliers listed
Get quotes Compare 18 suppliers
Sodium pentachlorophenolate chemical structure, C6Cl5NaO, CAS 131-52-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White crystalline solid
Boiling point
Decomposes.
Density
2.0 mg/L at 22 °C/4 °C
Solubility
In water, 3.30 × 10⁺⁵ mg/L at 25 °C
HS code
290811
Category
Herbicides
UN number
UN 2567
Illustrative photo, colourless crystals in an open fibre drum in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Sodium pentachlorophenolate?

Plain description, key identifiers and synonyms

Sodium pentachlorophenate is a white or tan, powdered solid. It is soluble in water and may burn, but it is not easily ignited. It may be toxic by ingestion, inhalation and skin absorption. It is used as a fungicide, herbicide and as a disinfectant.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
sodium 2,3,4,5,6-pentachlorophenolate
CAS number
131-52-2 CAS number cross-checkedOther or deprecated CAS: 123333-54-0
EC number
205-025-2
Molecular formula
C6Cl5NaO
UNII
640L8FZO38
MDL number
MFCD00002163
InChIKey
HCJLVWUMMKIQIM-UHFFFAOYSA-M
InChI
InChI=1S/C6HCl5O.Na/c7-1-2(8)4(10)6(12)5(11)3(1)9;/h12H;/q;+1/p-1
SMILES (canonical and isomeric)
C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)[O-].[Na+]

Synonyms

  • Sodium pentachlorophenate
  • Sodium pentachlorophenol
  • Weedbeads
  • Pkhfn
  • Sodium pentachlorophenoxide
  • Santobrite D
  • Dowicide G
  • Preventol PN
  • Witophen N
  • Mystox D
  • PCP Sodium salt
  • PCP-Sodium
  • Sodium PCP
  • Pentanot 25
  • Santobrite
  • Dow dormant fungicide
  • Sapco 25
  • Sodium pentachlorphenate
  • Pentachlorophenate sodium
  • Pentachlorophenoxy sodium
  • Pentachlorophenol, sodium salt
  • Pentachlorphenol sodium salt
  • Sodium, (pentachlorophenoxy)-
  • GR 48-11PS
  • GR 48-32S
Show all 36 synonyms
  • Pentachlorophenate, Sodium
  • Pentachlorophenol sodium salt
  • Pentachlorophenol sodium
  • Pentaphenate
  • sodium, 2,3,4,5,6-pentachlorophenolate
  • Napclor-G
  • Dowicide G-ST
  • Phenol, pentachloro-, sodium salt
  • Na-PCP
  • C6Cl5NaO
  • Phenol, pentachloro-, sodium salt, monohydrate

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 crystalline solidexp.
Odour
Phenolic odorexp.
Boiling point
Decomposes.exp.
Density
2.0 mg/L at 22 °C/4 °Cexp.
Solubility
In water, 3.30 × 10⁺⁵ mg/L at 25 °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
288.32 g/molcalc.
Exact mass
285.8289 Dacalc.
LogP (octanol/water)
1.03calc.
Topological polar surface area
23.06 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
13calc.
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)
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H311Toxic in contact with skin.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H330Fatal if inhaled.
  • H335May cause respiratory irritation.
  • H351Suspected of causing cancer.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (29)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • 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.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P362 + P364Take off 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 2567
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

Sodium pentachlorophenolate suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 18 suppliers
18 of 18 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

18 suppliers in 7 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Sodium pentachlorophenolate 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.

Get latest price

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.".

Fungicide (non-USA).

PCP or its sodium salt have also been used as a herbicide and dessicant for forage seed crops, a herbicide for non-food vegetation control, a biocide in the post-harvest washing of fruit, and as an insecticide for use in beehives, seed plots, and greenhouses. PCP was formerly used as a herbicide in paddy and upland rice fields, particularly in Japan. (Former).

Use classes: Herbicides.

How it is made

Exhaustive chlorination of phenol and conversion to the sodium salt with sodium hydroxide.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 604-003-00-3[1]

United States

  • TSCA inventory (USA)
    Status: Active 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 pentachlorophenolate is traded under.

HS 2908.11Indicative HS code

Pentachlorophenol (ISO)

World exports in 2024
$543K
−5.3% vs 2023, imports $382K
2019 to 2024
Top exporters
  1. Netherlands72.3%
  2. France * partner reported12.7%
  3. Italy5.9%
Top importers
  1. France * partner reported37.4%
  2. Germany21.3%
  3. Netherlands13.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Sodium pentachlorophenolate, based on the data on this page

What is Sodium pentachlorophenolate?

Sodium pentachlorophenate is a white or tan, powdered solid. It is soluble in water and may burn, but it is not easily ignited. It may be toxic by ingestion, inhalation and skin absorption. It is used as a fungicide, herbicide and as a disinfectant.

What is the CAS number of Sodium pentachlorophenolate?

The CAS registry number of Sodium pentachlorophenolate is 131-52-2. Other or deprecated CAS numbers: 123333-54-0.

What is the molecular formula and weight of Sodium pentachlorophenolate?

The molecular formula of Sodium pentachlorophenolate is C6Cl5NaO and its molar mass is 288.32 g/mol.

What is Sodium pentachlorophenolate used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". Fungicide (non-USA).

Is Sodium pentachlorophenolate hazardous?

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

What is the HS code of Sodium pentachlorophenolate?

Sodium pentachlorophenolate is usually classified under HS code 290811 (Pentachlorophenol (ISO)). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Sodium pentachlorophenolate?

CompoundList lists 18 suppliers of Sodium pentachlorophenolate in United States, China, India, Germany and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Sodium pentachlorophenolate in India?

3 suppliers in India list Sodium pentachlorophenolate on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Sodium pentachlorophenolate?

Suppliers quote Sodium pentachlorophenolate 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 pentachlorophenolate

Get quotes for Sodium pentachlorophenolate

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Sodium pentachlorophenolate
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Sodium pentachlorophenolate with a 3D view, its CAS number and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/sodium-pentachlorophenolate-131-52-2" title="Sodium pentachlorophenolate structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Herbicides or HS code 290811

18 suppliers
Free quotes, contact stays private
Get quotes