Clinical data
ATC code none
CAS Number 1952-67-6 YesY
PubChem (CID) 5364821
ChemSpider 4516954 YesY
ECHA InfoCard 100.016.162
Chemical and physical data
Formula C10H14N2O3
Molar mass 210.23 g/mol
3D model (Jmol) Interactive image

Crotylbarbital (Mepertan, Kalipnon, Barotal), also known as crotarbital, is a barbiturate derivative developed by Eli Lilly in the 1930s[1]m It has sedative and hypnotic effects,[2] and was used for the treatment of insomnia until it was replaced by newer alternative drugs with less side effects and lower risk of overdose.

See also


  1. US Patent 2250422
  2. Walther T, Meyer FP, Puchta K, Walther H. Effect of an acute dose of crotylbarbital on reaction time and attention testing in healthy human subjects. International Journal of Clinical Pharmacology, Therapy and Toxicology. 1983 Jun;21(6):306-10.

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