Skip to Main Navigation
Skip to Page Content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Testing Status of Methyl styryl ketone M940148


CASRN: 122-57-6

Formula: C10-H10-O

Synonyms/Common Names

  • Acetocinnamone
  • Benzalacetone
  • Benzylideneacetone
  • 3-Buten-2-One,4-Phenyl- (8Ci, 9Ci)
  • Methyl 2-phenylvinyl ketone
  • MSK
  • 4-Phenylbutenone
  • 2-Phenylvinyl methyl ketone

Known Uses

Reactive carbonyl compound used in organic synthetic reactions such as intermediate in organic synthesis, electroplating chemical; pharmaceutical intermediate, biochemical reagent, agricultural chemical intermediate, proposed sunscreen intermediate Used as flavoring & fragrance additive.

Chemical Properties

Toxicity Effects (HSDB)

Genetic Toxicology

  • Micronucleus  (A43741)  Completed 
    • Mice: B6C3F1
    • Male Negative 
  • Salmonella  (A59140)  Completed 
    •  Positive