thiobarbituric acid
{{chembox
|Verifiedfields = changed
|Watchedfields = changed
|verifiedrevid = 417116568
|Name = Thiobarbituric acid
|ImageFileL1 = Thiobarbituric acid.svg
|ImageFileR1 = Thiobarbituric-acid-3D-balls.png
|ImageNameR1 = Ball-and-stick model of thiobarbituric acid
|PIN = 2-Sulfanylidene-1,3-diazinane-4,6-dione
|OtherNames = 2-Thioxodihydropyrimidine-4,6(1H,5H)-dione
2-Thiobarbituric acid
|Section1 = {{Chembox Identifiers
|CASNo_Ref = {{cascite|correct|CAS}}
|CASNo = 504-17-6
|UNII_Ref = {{fdacite|correct|FDA}}
|UNII = M1YZW5SS7C
|PubChem = 2723628
|EINECS = 207-985-8
|ChEMBL_Ref = {{ebicite|changed|EBI}}
|ChEMBL = 584805
|ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}
|ChemSpiderID = 2005830
|SMILES = O=C(NC(N1)=S)CC1=O
|InChI = 1/C4H4N2O2S/c7-2-1-3(8)6-4(9)5-2/h1H2,(H2,5,6,7,8,9)
|InChIKey = RVBUGGBMJDPOST-UHFFFAOYAX
|StdInChI_Ref = {{stdinchicite|changed|chemspider}}
|StdInChI = 1S/C4H4N2O2S/c7-2-1-3(8)6-4(9)5-2/h1H2,(H2,5,6,7,8,9)
|StdInChIKey_Ref = {{stdinchicite|changed|chemspider}}
|StdInChIKey = RVBUGGBMJDPOST-UHFFFAOYSA-N
}}
|Section2 = {{Chembox Properties
|C = 4|H=4|N=2|O=2|S=1
|MolarMass = 144.15 g/mol
|MeltingPtC = 245
|MagSus = −72.9·10−6 cm3/mol
}}
}}
Thiobarbituric acid is an organic compound and a heterocycle. It is used as a reagent in assaying malondialdehyde (the TBARS assay of lipid peroxidation).[http://www.amdcc.org/shared/showFile.aspx?doctypeid=3&docid=33 Thiobarbituric acid reactive substances (TBARS) Assay] {{Webarchive|url=https://web.archive.org/web/20060914082200/http://www.amdcc.org/shared/showFile.aspx?doctypeid=3&docid=33 |date=2006-09-14}}, AMDCC Protocols, Animal Models of Diabetic Complications Consortium
It is also used in Kodak Fogging Developer FD-70, part of the Kodak Direct Positive Film Developing Outfit for making black and white slides (positives).{{cite web |title=Kodak Direct Positive Film 5246 |url=https://125px.com/docs/techpubs/kodak/j6.pdf |website=125px.com |publisher=Kodak |accessdate=6 November 2019}}