90012-56-9

Basic information

• Product Name: 1H-Pyrazol-5-amine, 4-nitroso-1,3-diphenyl-
• CAS NO: 90012-56-9
• Molecular Formula: C15H12N4O
• Molecular Weight: 264.286
• Mol File: 90012-56-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 1H-Pyrazol-5-amine, 4-nitroso-1,3-diphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Pyrazol-5-amine, 4-nitroso-1,3-diphenyl-(90012-56-9)
• EPA Substance Registry System: 1H-Pyrazol-5-amine, 4-nitroso-1,3-diphenyl-(90012-56-9)

Safety Data

• Hazardous Substances Data: 90012-56-9(Hazardous Substances Data)

Upstream product

• 5356-71-8 1,3-diphenyl-1H-pyrazol-5-amine 
• 176387-56-7 5-amino-1,3-diphenyl-1H-pyrazole-4-carboxaldehyde 

Downstream Products

• 1338328-66-7 1,3-diphenyl-7-(4-methoxyphenyl)-5-p-tolyl-1,6,7,8-tetrahydropyrazolo[4,3-b][1,4]diazepine 
• 1338328-69-0 1,3-diphenyl-4-(4-methoxyphenyl)-4H,6H-thiazolo[3,4-a]pyrazoloimidazole 
• 90012-57-0 1,3-diphenyl-1,6-dihydroimidazo[4,5-c]pyrazole-5-thiol 
• 4951-05-7 3,5-diphenyl-1,7-diphenylbispyrazolo[3,4-b;4',3'-e]-pyrazine 
• 93585-23-0 1,3-diphenyl-1H-pyrazolo[3,4-b]pyrazine 
• 1263214-05-6 C₂₂H₁₇N₅O₂ 
• 1263214-03-4 C₂₂H₁₉N₅O 
• 1263214-04-5 C₂₁H₁₆ClN₅ 
• 1263214-06-7 C₂₁H₁₇N₅O 
• 191230-75-8 ethyl 5-amino-1,3-diphenyl-1H-pyrazol-4-ylcarbamate 
• 90012-57-0 1,3-diphenyl-4,6-dihydro-1H-imidazo[4,5-c]pyrazole-5-thione 
• 251989-14-7 1,3-diphenyl-4-isothiocyanato-1H-pyrazol-5-ylamine 
• 251989-27-2 5-methylsulfanyl-1,3-diphenyl-1,4-dihydro-imidazo[4,5-c]pyrazole 
• 122128-84-1 1,3-diphenyl-1H-pyrazole-4,5-diamine 

Relevant articles and documents

Selective synthesis of functionalized pyrazoles from 5-amino-1H-pyrazole-4-carbaldehydes with sodium nitrite: 5-Amino-4-nitrosopyrazoles and pyrazole-4-carbaldehydes

A novel and efficient redox reaction was developed to react 5-amino-1H-pyrazole-4-carbaldehyde with sodium nitrite (NaNO2) in an acidic solution (HCl/MeOH) to generate 5-amino-4-nitrosopyrazole, pyrazole-4-carbaldehyde, or diazenylpyrazole selectively. The results showed that 5-amino-4-nitrosopyrazoles were formed as the major product in the diluted acidic solution (≤2 N HCl in MeOH solution) through redox, formylation, and nitrosation reactions of NaNO2. Intriguingly, pyrazole-4-carbaldehyde was the main product under 6 N HCl in MeOH solution.