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Synonyms: beta-Mehylacrolein; Propylene aldehyde; Crotonic aldehyde; 2-Butenal
OSHA IMIS Code Number: 0770
Chemical Abstracts Service (CAS) Registry Number: 123-73-9; 4170-30-3
NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: GP9499000
Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1143 131P (inhibited)
NIOSH Pocket Guide to Chemical Hazards, Crotonaldehyde: chemical description, physical properties, potentially hazardous incompatibilities, and more
OSHA Permissible Exposure Limit (PEL):
General Industry: 29 CFR 1910.1000 Z-1 Table -- 2 ppm, 6 mg/m3 TWAAmerican Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.3 ppm, 0.86 mg/m3 Ceiling; Skin; Appendix A3 - Confirmed Animal Carcinogen with Unknown Relevance to Humans
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 2 ppm, 6 mg/m3 TWA; Appendix C - Supplementary Exposure Limits (Aldehydes)
International Agency for Research on Cancer (IARC): Group 3 - not classifiable as to its carcinogenicity to humans [1 MB PDF, 19 pages]NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 50 ppm
Potential Symptoms: Eye, respiratory system irritation; cough, burning sensation, sore throat, labored breathing, pulmonary edema (may be delayed); eye redness, pain, lacrimation, severe deep burns.
Health Effects: Irritation-Eye, Nose, Throat, Skin---Marked (HE14); Lung edema (HE11)
Affected Organs: Respiratory system, eyes, skin
Laboratory Sampling/Analytical Method:
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Page last updated: 01/31/2006
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