September 2010
NIOSH Publication Number 2010-168c

Clopidol

Synonyms & Trade Names
Coyden®; 3,5-Dichloro-2,6-dimethyl-4-pyridinol
CAS No.
2971-90-6
RTECS No.
UU7711500
DOT ID & Guide
Formula
C7H7Cl2NO
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
: TWA 10 mg/m3 (total) ST 20 mg/m3 (total) TWA 5 mg/m3 (resp)
OSHA PEL
: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
Measurement Methods

NIOSH 0600
Physical Description
White to light-brown, crystalline solid.
MW:
192.1
BP:
?		 MLT: >608°F
Sol:
Insoluble
VP:
?
IP:
?
Sp.Gr:
?
Fl.P:
NA
UEL:
NA
LEL:
NA
Noncombustible Solid, but dust may explode in cloud form.
Incompatibilities & Reactivities
None reported
Exposure Routes
inhalation, skin and/or eye contact
Symptoms
irritation eyes, skin, nose, throat; cough
Target Organs
Eyes, skin, respiratory system
Personal Protection/Sanitation
(See protection codes)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Fresh air
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also: INTRODUCTION