clopidol

Description

clopidol · CAS 2971-90-6 · C7H7Cl2NO. UNII 8J763HFF5N. Melting Point: >320 °C; Melting Point: >608 °F; Solubility: In water, 10 mg/L.

Identification

CAS Registry Number	2971-90-6
PubChem CID	18087
Molecular formula	C7H7Cl2NO
IUPAC name	3,5-dichloro-2,6-dimethyl-1H-pyridin-4-one
UNII (FDA)	8J763HFF5N

Computed Descriptors

Molecular Weight	192.04
XLogP3	2.6
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	190.9904692
Monoisotopic Mass	190.9904692
Topological Polar Surface Area	29.1
Heavy Atom Count	11
Formal Charge	0

Physical & Chemical Properties

Melting Point	>320 °C
Melting Point	>608 °F
Solubility	In water, 10 mg/L
LogP	0.5

Physical description & handling notes

• Clopidol is a white to light-brown, crystalline solid. Mp: 320 °C. Practically insoluble in water. Administered to poultry to prevent the growth of pathogenic parasites.
• White to light-brown, crystalline solid; [NIOSH]
• White to light-brown, crystalline solid.
• White to light-brown, crystalline solid
• Powder
• greater than 608 °F (NIOSH, 2024)

Regulatory Status

Regulatory & Food Contact	ANTIPROTOZOAL_AGENT: Veterinary Drug 0–0.04 mg/kg bw JECFA98 report
GHS notification summary	8.9% (4 / 45)

GHS Hazard Classification

GHS notification summary	8.9% (4 / 45)
Reported hazard statements	H315 (88.9%), H319 (91.1%), H335 (91.1%), H316, H320

Documented Uses

• A coccidiostat used in veterinary medicine; [Merck Index] Dorland's Illustrated Medical Dictionary defines a coccidiostat as, any of a group of chemical agents, e.g., nitrofurazone, nitrophenide, nicarbazin, mixed in feed or drinking water to control coccidiosis in animals.
• Animal Drugs -> FDA Approved Animal Drug Products (Green Book) -> Active Ingredients
• Veterinary Drug -> ANTIPROTOZOAL_AGENT -> JECFA Functional Classes
• Pharmaceuticals -> Animal Drugs -> Approved in Taiwan
• THERAPEUTIC CATEGORY (VETERINARY): Coccidiostat
• Used as an anticoccidiostat in poultry.

Synonyms

Clopidol; 2971-90-6; 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

Frequently Asked Questions

What are the CAS number and molecular formula of clopidol?

CAS 2971-90-6; molecular formula C7H7Cl2NO; molecular weight — g/mol.

What other names is clopidol known by?

Clopidol, 2971-90-6, Meticlorpindol, Coyden, Lerbek, Coccidiostat C.

What is the regulatory status of clopidol?

Documented regulatory listings: ANTIPROTOZOAL_AGENT: Veterinary Drug; 0–0.04 mg/kg bw; JECFA98 report.

Is clopidol classified as hazardous?

8.9% of GHS notifications report no hazard classification (4 of 45).

What are the key physical properties of clopidol?

Melting Point: >320 °C; Melting Point: >608 °F; Solubility: In water, 10 mg/L; LogP: 0.5.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.