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3-Methyl-1-p-tolyl-5-pyrazolone

Also known as: 2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one, 1-(4-Methylphenyl)-3-methyl-5-pyrazolone, 1-p-Tolyl-3-methyl-5-pyrazolone, 3-Methyl-1-(4-methylphenyl)-4,5-dihydro-1H-pyrazol-5-one, 5-Methyl-2-(4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one, TIMTEC-BB SBB003677

3-Methyl-1-p-tolyl-5-pyrazolone (CAS 86-92-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H12N2O and a molecular weight of 188.226 g/mol. Key properties include a melting point of 129 °C, a boiling point of 365.1±21.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 174.6±22.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
86-92-0
Jingsj CID
J-1133288-0
Molecular Formula
C11H12N2O
Molecular Weight
188.226 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point129 °C
Boiling Point365.1±21.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point174.6±22.1 °C
Exact Mass188.094955
PSA32.67000
LogP0.90
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.595

Customs & Trade Information

HS Code2933199090
Summary2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3-Methyl-1-p-tolyl-5-pyrazolone?

The CAS number of 3-Methyl-1-p-tolyl-5-pyrazolone is 86-92-0.

What are the molecular formula and molecular weight of 3-Methyl-1-p-tolyl-5-pyrazolone?

3-Methyl-1-p-tolyl-5-pyrazolone has molecular formula C11H12N2O and molecular weight 188.226 g/mol.

What are the upstream and downstream products of 3-Methyl-1-p-tolyl-5-pyrazolone?

For 3-Methyl-1-p-tolyl-5-pyrazolone, Upstream Products: 4-Methylphenylhydrazine hydrochloride, Ethyl acetoacetate, 4-Iodotoluene; Downstream Products: 5-chloro-3-methyl-1-(4-methylphenyl)-1H-pyrazole-4-carbaldehyde.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3-Methyl-1-p-tolyl-5-pyrazolone (CAS 86-92-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1133288-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.