27430-16-6

Basic information

• Product Name: 5,5'-(salicylidene)bis-(2-thiobarbituric acid)
• Synonyms: 5,5'-(salicylidene)bis-(2-thiobarbituric acid)
• CAS NO: 27430-16-6
• Molecular Formula: C₁₅H₁₂N₄O₅S₂
• Molecular Weight: 392.41
• Mol File: 27430-16-6.mol
• Article Data: 1

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 1.72g/cm³
• PKA: 6.36±0.40(Predicted)
• CAS DataBase Reference: 5,5'-(salicylidene)bis-(2-thiobarbituric acid)(CAS DataBase Reference)
• NIST Chemistry Reference: 5,5'-(salicylidene)bis-(2-thiobarbituric acid)(27430-16-6)
• EPA Substance Registry System: 5,5'-(salicylidene)bis-(2-thiobarbituric acid)(27430-16-6)

Safety Data

• Hazardous Substances Data: 27430-16-6(Hazardous Substances Data)

Upstream product

• 114370-98-8 5-[(2'-hydroxyphenyl)methylidene]-2-thioxodihydropyrimidine-4,6(1H,5H)-dione 
• 90-02-8 salicylaldehyde 

Relevant articles and documents

Spectroscopic data for some arylidenethiobarbituric acids

IR, 1H-NMR, 13C-NMR and MS spectra of representative arylidenethiobarbituric acids are offered and criticized.The absence of any characteristic IR bands which might be assigned to the -OH group of the enolic form confirm the prevalence of the keto-form.A direct planar coupling between the aromatic substituent and the carbonyl groups is observed through the 1H-NMR spectra.From the 13C-NMR spectra it can be inferred that the δ value s at 5-position are not significatively influenced by the kind of R substituent in the aryl ring.Loss of the hydrogen atom corresponding to the exocyclic carbon originates an intense quasi-molecular ion +.The fragmentation processes for 5-(salicylidene)-bis-2-thiobarbituric acid are similar to those for 5,5-disubstituted barbituric acids with aromatic substituents.