National Toxicology Program

National Toxicology Program

Testing Status of Ethephon - M050084


CASRN: 16672-87-0

Formula: C2-H6-Cl-O3-P

Synonyms/Common Names

  • 2-Chloroethanephosphonic acid

Known Uses

Plant growth regulator/fertilizer. Associated with tobacco: reported either as a natural component of tobacco, pyrolysis product (in tobacco smoke), or additive for one or more types of tobacco products.

Chemical Properties

Toxicity Effects (HSDB)

Special Studies

  • C. elegans  (S0910)  Completed 
    • C. elegans
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.