CAS RN:141-66-2

Threshold Limit Values

8 hr Time Weighted Avg (TWA): 0.05 mg/cu m (Inhalable fraction and vapor), skin.
Excursion Limit Recommendation: Excursions in worker exposure levels may exceed 3 times the TLV-TWA for no more than a total of 30 minutes during a work day, and under no circumstances should they exceed 5 times the TLV-TWA, provided that the TLV-TWA is not exceeded.
A4; Not classifiable as a human carcinogen.
Biological Exposure Index (BEI): Determinant: cholinesterase activity in red blood cells; Sampling Time: discretionary; BEI: 70% of individual's baseline. The determinant is nonspecific, since it is also observed after exposure to other chemicals. /Acetylcholinesterase inhibiting pesticides/
Find more information on this substance at: Hazardous Substances Data Bank , TOXNET , PubMed