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In some countries, this medicine may only be approved for veterinary use.



CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Anesthetic, injectable

Chemical Names

5-Allyl-5-(1-metylbutyl)-2-tiobarbituric acid (USAN)

5-Allyl-5-(1-metylbutyl)-2-tiobarbitursäure (IUPAC)


Dihydro-5-(1-metylbutyl)-5-(2-propenyl)-2-tioxo-4,6-(1H,5H)-pyrimidine-dione (USAN)

Foreign Name

  • Thiamylal (German)

Generic Names

  • Thiochinalbarbiton (IS)
  • Thioquinalbarbitone (IS)
  • UNII-01T23W89FR (IS)
  • Thiamylal (PH: USP 23)
  • Thiamylal Sodium (OS: JAN)
  • Thioquinal barbitone (IS)
  • UNII-T4L2P3KH7K (IS)
  • Thiamylal Sodium (PH: JP XVII)
  • Thiamylal Sodium [for Injection] (PH: USP 23)

Brand Names

  • Anestatal [veterinary use]
    Strategic, United States
  • Bio-Tal [veterinary use]
    Strategic, United States
  • Citosol
    Kyorin Pharmaceutical, Japan; Shinlin Sinseng, Taiwan
  • Isozol
    Nichi-Iko Pharmaceutical, Japan
  • Surital [veterinary use]
    Zoetis, United States


IUPACInternational Union of Pure and Applied Chemistry
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
USANUnited States Adopted Name
USPPharmacopoeia of the United States

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.