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Chemical Sampling Information (CSI)
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General Description

Synonyms: ENB, 5-Ethylidenebicyclo(2.2.1)hept-2-ene, 5-Ethylidene-2-norbornene

OSHA IMIS Code Number: 1161

Chemical Abstracts Service (CAS) Registry Number: 16219-75-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: RB9450000; 52406

NIOSH Pocket Guide to Chemical Hazards, Ethylidene Norbornene: chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:

solid

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 5 ppm, 25 mg/m3 Ceiling

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 5 ppm Ceiling

Health Factors

Health Effects: Irritation-Eye, Nose, Throat, Skin---Moderate (HE15) Cumulative liver and testicular damage (HE3) Reproductive Hazards-Fertility impairment or teratogenesis (HE5)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • Standard has been stayed until an analytical method can be developed.

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