Description

3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)- (CAS No. 6402-09-1) is a high-purity heterocyclic organic compound with the molecular formula C₁₀H₉N₃O₃. This yellow crystalline powder is widely utilized in pharmaceutical and chemical research due to its pyrazolone backbone and nitro-substituted phenyl group, which make it a valuable intermediate in synthetic chemistry. With an IUPAC name of 5-methyl-2-(4-nitrophenyl)-4H-pyrazol-3-one, this compound exhibits excellent stability under standard laboratory conditions and is soluble in common organic solvents such as ethanol, DMSO, and acetone. Each batch undergoes rigorous QC testing, including HPLC and NMR analysis, to ensure ≥98% purity, meeting the stringent requirements of researchers and industrial applications. Proper storage in a cool, dry environment is recommended to maintain its integrity.

Properties

• CAS Number: 6402-09-1
• Complexity: 340
• IUPAC Name: 5-methyl-2-(4-nitrophenyl)-4H-pyrazol-3-one
• InChI: InChI=1S/C10H9N3O3/c1-7-6-10(14)12(11-7)8-2-4-9(5-3-8)13(15)16/h2-5H,6H2,1H3
• InChI Key: MYPAMGFTHVEING-UHFFFAOYSA-N
• Exact Mass: 219.06439116
• Molecular Formula: C10H9N3O3
• Molecular Weight: 219.20
• SMILES: CC1=NN(C(=O)C1)C2=CC=C(C=C2)[N+](=O)[O-]
• Topological: 78.5
• Monoisotopic Mass: 219.06439116
• Synonyms: 1-(4-Nitrophenyl)-3-methyl-5-pyrazolone, 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)-, 2-Pyrazolin-5-one, 3-methyl-1-(p-nitrophenyl)-, 3-Methyl-1-(4-nitrophenyl)-5-pyrazolone, AI3-61060, DTXSID7064312, EINECS 229-018-9, NSC 15353, DTXCID3044178, 2-Pyrazolin-5-one, 3-methyl-1-(p-nitrophenyl)-(8CI), 229-018-9, 6402-09-1, 5-Methyl-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one, 5-methyl-2-(4-nitrophenyl)-4H-pyrazol-3-one, MLS002638425, NSC-15353, 1-(4-nitrophenyl)-3-methyl-2-pyrazolin-5-one, 3-methyl-1-(4-nitrophenyl)-2-pyrazolin-5-one, 5-methyl-2-(4-nitrophenyl)-2,3-dihydro-1H-pyrazol-3-one, 2-{4-nitrophenyl}-5-methyl-2,4-dihydro-3H-pyrazol-3-one, NSC15353, B9SDZ9U3E8, CBDivE_001863, 3-methyl-1-(4-nitrophenyl)-1H-pyrazol-5(4H)-one, CHEMBL220283, SCHEMBL4664731, SCHEMBL9511915, HMS3089D20, MFCD00020751, STK508279, AKOS004114702, AB90964, SMR001547906, CS-0152727, M0377, NS00035620, N12012, AA-504/08378001, AE-641/00786013, 5-Methyl-2-(4-nitrophenyl)-2,4-dihydro-3-pyrazolone, 5-methyl-2-(4-nitrophenyl)-2,4-dihydro-pyrazol-3-one, 3H-Pyrazol-3-one,4-dihydro-5-methyl-2-(4-nitrophenyl)-, 5-Methyl-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one #

Application

This compound serves as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antipyretic and analgesic agents. It is also employed in organic synthesis for the preparation of dyes and pigments due to its nitro-aromatic functionality. Researchers utilize it in heterocyclic chemistry studies to explore novel reaction pathways and functional group transformations.

Safety and Hazards

GHS Hazard Statements

• H302 (84.4%): Harmful if swallowed [Warning Acute toxicity, oral]
• H317 (84.4%): May cause an allergic skin reaction [Warning Sensitization, Skin]

Precautionary Statements

• P261, P264, P270, P272, P280, P301+P317, P302+P352, P321, P330, P333+P317, P362+P364, and P501

Hazard Classes and Categories

• Acute Tox. 4 (84.4%)
• Skin Sens. 1 (84.4%)

If you are interested or have any questions, please contact us at support@atomfair.com

Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.