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5-Hydroxy-1-methylpyrrolidin-2-one

Also known as: 5-Hydroxy-N-methyl-2-pyrrolidinone, 5-Hydroxy-1-methyl-2-pyrrolidinone, 2-Pyrrolidinone, 5-hydroxy-1-methyl-

5-Hydroxy-1-methylpyrrolidin-2-one (CAS 41194-00-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H9NO2 and a molecular weight of 115.13000 g/mol. Key properties include a melting point of 52-55 °C, a boiling point of 275.912ºC at 760 mmHg, a density of 1.235 g/cm3 and a flash point of 120.668ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
41194-00-7
Jingsj CID
J-1069845-0
Molecular Formula
C5H9NO2
Molecular Weight
115.13000 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point52-55 °C
Boiling Point275.912ºC at 760 mmHg
Density1.235 g/cm3
Flash Point120.668ºC
Exact Mass115.06300
PSA40.54000
Storage Conditions-20°C

Customs & Trade Information

HS Code2933790090
Summary2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Hydroxy-1-methylpyrrolidin-2-one?

The CAS number of 5-Hydroxy-1-methylpyrrolidin-2-one is 41194-00-7.

What are the molecular formula and molecular weight of 5-Hydroxy-1-methylpyrrolidin-2-one?

5-Hydroxy-1-methylpyrrolidin-2-one has molecular formula C5H9NO2 and molecular weight 115.13000 g/mol.

What are the upstream and downstream products of 5-Hydroxy-1-methylpyrrolidin-2-one?

For 5-Hydroxy-1-methylpyrrolidin-2-one, Upstream Products: N-Methylmaleimide, N-Methylsuccinimide, 1-Methyl-2-pyrrolidinone; Downstream Products: N-Methylsuccinimide.

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

Last updated:

How to cite: Jingsj. "5-Hydroxy-1-methylpyrrolidin-2-one (CAS 41194-00-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1069845-0 (accessed 2026-11-09).

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