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Systematic (IUPAC) name
CAS Number 1952-67-6
ATC code none
PubChem CID 5364821
ChemSpider 4516954
Synonyms Crotylbarbital, Crotarbital, Mepertan, Kalipnon, Barotal
Chemical data
Formula C10H14N2O3
Molar mass 210.23 g/mol[[Script error: No such module "String".]]
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Crotylbarbital (Crotarbital, Mepertan, Kalipnon, Barotal) is a barbiturate derivative invented in the 1960s.[1] 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.


  1. Preussler M. Contribution on the microchemical test for crotylbarbital. Pharmazeutische Zentralhalle fur Deutschland. 1964;103:409-11. (German)
  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.