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Basic information

  • Name:

  • 4-Pyridinol,3,5-dichloro-2,6-dimethyl-

  • Superlist Name:
  • Clopidol
  • CAS No.:

  • 2971-90-6

  • Formula:
  • C7H7Cl2NO
  • Synonyms:
  • 2,6-Dimethyl-3,5-dichloro-4-pyridinol;3,5-Dichloro-2,6-dimethyl-4-hydroxypyridine;3,5-Dichloro-2,6-dimethyl-4-pyridinol;3,5-Dichloro-2,6-dimethylpyridinol;3,5-Dichloro-4-hydroxy-2,6-dimethylpyridine;Coccidiostat C;Coyden;Coyden 25;Farmcoccid;Lerbek;Methylchloropindol;Methylchlorpindol;Meticlorpindol;NSC 253479;Pharmcoccid;WR 61112;

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Chemistry

Chemistry informtion about Clopidol (CAS NO.2971-90-6) is:
IUPAC Name: 3,5-Dichloro-2,6-Dimethyl-1h-Pyridin-4-One
Synonyms: 3,5-Dichloro-2,6-Dimethyl-4-Pyridino ; Clopidolmeticlopidol ; Coccidiostatc ; Coyden ; Coyden25 ; Methylchlorpindol ; Meticlorpindol
Product Categories: Food and Feed Additive ; Active Pharmaceutical Ingredients ; Organics ; Veterinaries 
MF: C7H7Cl2NO
MW: 192.04
EINECS: 221-008-2
Density: 1.37 g/cm3
Melting Point: >320°C 
Flash Point: 105.6 °C
Boiling Point: 251.1 °C at 760 mmHg
Vapour Pressure: 0.0209 mmHg at 25°C 
Enthalpy of Vaporization: 48.83 kJ/mol
Storage temp.: 0-6°C
Following is the molecular structure of Clopidol (CAS NO.2971-90-6) is:

Uses

Clopidol (CAS NO.2971-90-6) can b used as veterinary drugs, anti-coccidiosis medicines.

Production

Raw materials is Dehydroacetic acid .

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 oral > 8gm/kg (8000mg/kg)   "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 6, Pg. 324, 1991.
rabbit LD50 oral > 8gm/kg (8000mg/kg)   "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 6, Pg. 324, 1991.
rat LD50 oral 18gm/kg (18000mg/kg)   "Merck Index; an Encyclopedia of Chemicals, Drugs, and Biologicals", 11th ed., Rahway, NJ 07065, Merck & Co., Inc. 1989Vol. 11, Pg. 375, 1989.

Safety Profile

A nuisance dust. When heated to decomposition it emits very toxic fumes of Cl− and NOx.
Hazard Codes:
IrritantXi
Risk Statements:
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements:
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
RTECS: UU7711500

Standards and Recommendations

OSHA PEL: Total Dust: 15 mg/m3; Respirable Fraction: 5 mg/m3
ACGIH TLV: TWA 10 mg/m3; Not Classifiable as a Human Carcinogen

Specification

Clopidol (CAS NO.2971-90-6) is a white to light-brown, crystalline solid. It is practically insoluble in water. Administered to poultry to prevent the growth of pathogenic parasites. Clopidol is a non-combustible as a solid, but dust may burn rapidly or explode when mixed with air and ignited.

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