4-(2-Methyl-2-phenylhydrazinyl)-5,6-dihydropyridin-2(1H)-one

Also known as: 5,6-Dihydro-4-(2-methyl-2-phenylhydrazino)-2-1H-pyridinone, 4-(2-methyl-2-phenylhydrazinyl)-2,3-dihydro-1H-pyridin-6-one, 2(1H)-Pyridinone, 5,6-dihydro-4-(2-methyl-2-phenylhydrazinyl)-, pyr027, 4-(2-Fenyl-2-methylhydrazino)-5,6-dihydro-2-pyridon

4-(2-Methyl-2-phenylhydrazinyl)-5,6-dihydropyridin-2(1H)-one (CAS 139122-76-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H15N3O and a molecular weight of 217.26700 g/mol. Key property: a density of 1.193g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 139122-76-2
Jingsj CID: J-1176260-0
Molecular Formula: C₁₂H₁₅N₃O
Molecular Weight: 217.26700 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.193g/cm3
Exact Mass	217.12200
PSA	44.37000
LogP	1.75090
Refractive Index	1.614

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 4-(2-Methyl-2-phenylhydrazinyl)-5,6-dihydropyridin-2(1H)-one?

The CAS number of 4-(2-Methyl-2-phenylhydrazinyl)-5,6-dihydropyridin-2(1H)-one is 139122-76-2.

What are the molecular formula and molecular weight of 4-(2-Methyl-2-phenylhydrazinyl)-5,6-dihydropyridin-2(1H)-one?

4-(2-Methyl-2-phenylhydrazinyl)-5,6-dihydropyridin-2(1H)-one has molecular formula C12H15N3O and molecular weight 217.26700 g/mol.

What are the upstream and downstream products of 4-(2-Methyl-2-phenylhydrazinyl)-5,6-dihydropyridin-2(1H)-one?

For 4-(2-Methyl-2-phenylhydrazinyl)-5,6-dihydropyridin-2(1H)-one, Downstream Products: 2,3,4,5-Tetrahydro-5-methyl-1H-pyrido[4,3-b]indol-1-one.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-(2-Methyl-2-phenylhydrazinyl)-5,6-dihydropyridin-2(1H)-one (CAS 139122-76-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1176260-0 (accessed 2026-11-09).

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