4-Chlorophenyl isocyanate
Agent Name
4-Chlorophenyl isocyanate
CAS Number
104-12-1
Formula
C7-H4-Cl-N-O
Major Category
Toxic Gases & Vapors
Synonyms
Isocyanic acid, p-chlorophenyl ester; 1-Chloro-4-isocyanatobenzene; 4-Chloroisocyanatobenzene; Benzene, 1-chloro-4-isocyanato-; PCPI; p-Chlorfenylisokyanat [Czech]; p-Chlorophenyl isocyanate; para-Chlorophenyl isocyanate; [ChemIDplus] UN2811
Category
Monoisocyanates
Description
Colorless to yellow liquid or white solid; [Hawley] White crystalline solid; mp = 29-31 deg C; [MSDSonline]
Sources/Uses
Used to produce pharmaceuticals and pesticides; [Hawley]
Comments
A strong irritant of the skin and eyes; [Hawley] An irritant; May cause lacrimation and serious injury to eyes; May cause respiratory sensitization after prolonged contact; [MSDSonline] Could be carcinogenic for man but not conclusive because of insufficient data (3B); [MAK] See "MONOISOCYANATES."
Biomedical References
Exposure Assessment
Vapor Pressure
95.4 mm Hg
Lethal Concentration
LC50 (rat) = 113 mg/m3/4h
Explanatory Notes
Flash point = 110 deg C; [Hawley] The Guide in the Emergency Response Guidebook is for "Toxic solid, organic, n.o.s."
Adverse Effects
Lachrymator
Yes
Toxic Pneumonitis
Yes
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.