146120-04-9

Basic information

• Product Name: 1H-Pyrazole-1-carbothioamide,5-hydroxy-3-methyl-(9CI)
• Synonyms: 1H-Pyrazole-1-carbothioamide,5-hydroxy-3-methyl-(9CI)
• CAS NO: 146120-04-9
• Molecular Formula: C₅H₇N₃OS
• Molecular Weight: 157.19358
• Product Categories: THIOAMIDE
• Mol File: 146120-04-9.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1H-Pyrazole-1-carbothioamide,5-hydroxy-3-methyl-(9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Pyrazole-1-carbothioamide,5-hydroxy-3-methyl-(9CI)(146120-04-9)
• EPA Substance Registry System: 1H-Pyrazole-1-carbothioamide,5-hydroxy-3-methyl-(9CI)(146120-04-9)

Safety Data

• Hazardous Substances Data: 146120-04-9(Hazardous Substances Data)

Upstream product

• 141-97-9 ethyl acetoacetate 
• 79-19-6 thiosemicarbazide 

Downstream Products

• 6097-21-8 2-(4-nitrophenyl)-2-oxoethyl thiocyanate 
• 117480-99-6 5-Methyl-2-[4-(4-nitro-phenyl)-thiazol-2-yl]-2H-pyrazol-3-ol 
• 91902-07-7 3-methyl-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5(4H)-one 
• 5399-30-4 2-oxo-2-phenylethylthiocyanate 
• 117480-98-5 1-(4-phenyl-2-thiazolyl)-3-methyl-5-hydroxypyrazole 

Relevant articles and documents

Reaction of 4-Aryl-2-hydrazinothiazoles with Ethyl Acetoacetate: A Reinvestigation

The reaction of 4-aryl-2-hydrazinothiazoles (1a,b) with ethyl acetoacetate (2) affords 1-(4'-aryl 2'-thiazolyl)-3-methylpyrazol-5-ols (3a,b) rather than 3-arylthiazolotriazepin-5-ones (4a,b),as previously reported.The correct structural assignment is based on an alternate synthesis involving reaction of phenacyl bromides (6) and 3-methylpyrazol-5-ol-1-thiocarboxamide (7).The keto/enol tautomerism of 3 has been investigated using PMR spectroscopy.