Clopidol
Agent Name
Clopidol
Alternative Name
Coyden
CAS Number
2971-90-6
Formula
C7-H7-Cl2-N-O
Major Category
Other Uses
Synonyms
2,6-Dimethyl-3,5-dichloro-4-pyridinol; 3,5-Dichloro-2,6-dimethyl-4-pyridinol; 3,5-Dichloro-4-hydroxy-2,6-dimethylpyridine; Clopidolo [DCIT]; Clopidolum [INN-Latin]; Coccidiostat C; Coyden; Coyden 25; Lerbek; Methylchloropindol; Methylchlorpindol; Metichlorpindol; Meticlorpindol; Rigekokcin (rigecoccin); 4-Pyridinol, 3,5-dichloro-2,6-dimethyl-; [ChemIDplus]
Category
Animal Feed Additives
Description
White to light-brown, crystalline solid; [NIOSH]
Sources/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."
Comments
Low acute oral toxicity; Absence of adverse effects in chronic studies at 5-15 mg/kg; A mild eye irritant; TLV Basis: Mutagenic effect; [ACGIH] Allergic contact dermatitis reported in feed mill workers; [Kanerva, p. 1772]
Reference Link #1
Biomedical References
Exposure Assessment
Skin Designation (ACGIH)
Insufficient data
TLV (ACGIH)
3 mg/m3, inhalable fraction and vapor
PEL (OSHA)
15 mg/m3(total dust), 5 mg/m3(respirable fraction)
Adverse Effects
Skin Sensitizer
Yes
Reproductive Toxin
Yes
ACGIH Carcinogen
Not Classifiable
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent: