Thiamylal

Thiamylal (Surital) is a barbiturate derivative invented in the 1950s. It has sedative, anticonvulsant, and hypnotic effects, and is used as a strong but short acting sedative. Thiamylal is still in current use, primarily for induction in surgical anaesthesia[1] or as an anticonvulsant to counteract side effects from other anaesthetics.[2] It is the thiobarbiturate analogue of secobarbital.

Thiamylal
Clinical data
Other namesThiamylal, Thioseconal, Surital
AHFS/Drugs.comInternational Drug Names
ATCvet code
Legal status
Legal status
Pharmacokinetic data
MetabolismHepatic
Elimination half-life14.3 h (cats)
Identifiers
IUPAC name
  • 5-(Pentan-2-yl)-5-(prop-2-en-1-yl)-2-sulfanylidenedihydropyrimidine-4,6(1H,5H)-dione
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.000.927
Chemical and physical data
FormulaC12H18N2O2S
Molar mass254.35 g·mol−1
3D model (JSmol)
SMILES
  • O=C1NC(=S)NC(=O)C1(C(C)CCC)C\C=C
InChI
  • InChI=1S/C12H18N2O2S/c1-4-6-8(3)12(7-5-2)9(15)13-11(17)14-10(12)16/h5,8H,2,4,6-7H2,1,3H3,(H2,13,14,15,16,17) Y
  • Key:XLOMZPUITCYLMJ-UHFFFAOYSA-N Y
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References
  1. Hsieh MY, Hung GY, Hsieh YL, Chang CY, Hwang B (2005). "Deep sedation with methohexital or thiamylal with midazolam for invasive procedures in children with acute lymphoblastic leukemia". Acta Paediatrica Taiwanica = Taiwan Er Ke Yi Xue Hui Za Zhi. 46 (5): 294–300. PMID 16640004.
  2. Tsai CJ, Wang HM, Lu IC, Tai CF, Wang LF, Soo LY, Lu DV (February 2007). "Seizure after local anesthesia for nasopharyngeal angiofibroma". The Kaohsiung Journal of Medical Sciences. 23 (2): 97–100. doi:10.1016/S1607-551X(09)70383-3. PMID 17339174.


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