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Feed additives

Clopidol

Also known as Meticlorpindol, Coyden, Lerbek

CAS 2971-90-6Formula C7H7Cl2NOMolar mass 192.05 g/molEC 221-008-2
GHS signal word: Warning. Pictograms: Harmful or irritant 51 suppliers listed Drug substance
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Clopidol chemical structure, C7H7Cl2NO, CAS 2971-90-6
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White to light-brown, crystalline solid
Melting point
>320
Solubility
In water, 10 mg/L
HS code
293339
Category
Feed additives
Illustrative photo, colourless crystals in an open woven sack in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Clopidol?

Plain description, key identifiers and synonyms

Clopidol is a chloropyridine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3,5-dichloro-2,6-dimethyl-1H-pyridin-4-one
CAS number
2971-90-6 CAS number cross-checked
EC number
221-008-2
Molecular formula
C7H7Cl2NO
UNII
8J763HFF5N
MDL number
MFCD00867211
InChIKey
ZDPIZLCVJAAHHR-UHFFFAOYSA-N
InChI
InChI=1S/C7H7Cl2NO/c1-3-5(8)7(11)6(9)4(2)10-3/h1-2H3,(H,10,11)
SMILES (canonical and isomeric)
CC1=C(C(=O)C(=C(N1)C)Cl)Cl

Synonyms

  • Meticlorpindol
  • Coyden
  • Lerbek
  • Coccidiostat C
  • Methylchlorpindol
  • Methylchloropindol
  • 4-Pyridinol, 3,5-dichloro-2,6-dimethyl-
  • Metichlorpindol
  • Clopindol
  • Coyden 25
  • 3,5-Dichloro-2,6-dimethyl-4-pyridinol
  • Rigekokcin (rigecoccin)
  • Clopidolo
  • Clopidolum
  • 3,5-Dichloro-4-hydroxy-2,6-dimethylpyridine
  • 2,6-Dimethyl-3,5-dichloro-4-pyridinol
  • Coyden Type A Medicated Article
  • 3,5-dichloro-2,6-dimethylpyridin-4-ol
  • 3,5-dichloro-2,6-dimethyl-1H-pyridin-4-one
  • 3,5-Dichloro-2,6-dimethyl-4-hydroxypyridine
  • Farmcoccid
  • Pharmcoccid
  • Pharmcoccide
  • Methylclorpindol
  • 3,6-dimethylpyridine
Show all 29 synonyms
  • 3,5-Dichloro-2,6-dimethyl- 4-pyridinol
  • Clopidol (USAN/INN)
  • 3,5-dichloro-2,6-dimethylpyridin-4(1H)-one
  • 3,6-dimethyl-4-pyridinol

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 to light-brown, crystalline solidexp.
Melting point
>320exp.
Solubility
In water, 10 mg/Lexp.

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
192.05 g/molcalc.
Exact mass
190.9905 Dacalc.
LogP (octanol/water)
2.3calc.
Topological polar surface area
32.86 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
11calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.29calc.
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=c1cc[nH]cc1

O=c1cc[nH]cc1

1 ring, 7 atoms, the 4-Hydroxypyridine ring system.

2,433 other chemicals share 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

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • 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.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off 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

Clopidol suppliers

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

All 51 suppliers
30 of 30 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

51 suppliers in 9 countries

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Clopidol 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

Veterinary medication:.

Use classes: Pharmaceuticals, Animal Drugs.

Pharmacological actions

  • Coccidiostats

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Clopidol?

Clopidol is a chloropyridine.

What is the CAS number of Clopidol?

The CAS registry number of Clopidol is 2971-90-6.

What is the molecular formula and weight of Clopidol?

The molecular formula of Clopidol is C7H7Cl2NO and its molar mass is 192.05 g/mol.

What is Clopidol used for?

Veterinary medication:. Use classes: Pharmaceuticals, Animal Drugs.

Is Clopidol hazardous?

Clopidol carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Clopidol?

Clopidol is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Clopidol?

CompoundList lists 51 suppliers of Clopidol in China, United States, Hong Kong, India and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Clopidol in India?

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

What is the price of Clopidol?

Suppliers quote Clopidol 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 Clopidol

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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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