4-(Hydroxymethyl)pyrrolidin-2-one

Also known as: 2-pyrrolidinone, 4-(hydroxymethyl)-, 3-(Hydroxymethyl)pyrrolidin-5-one, 4-(Hydroxymethyl)-2-oxopyrrolidine, 4-methylol-2-pyrrolidone, 4-hydroxymethylpyrrolidin-2-one, 4-hydroxymethyl-2-pyrrolidinone, 4-hydroxymethyl-pyrrolidin-2-one, 4-hydroxymethylpyrrolidone

4-(Hydroxymethyl)pyrrolidin-2-one (CAS 64320-89-4) 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. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 64320-89-4
Jingsj CID: J-1437919-2
Molecular Formula: C₅H₉NO₂
Molecular Weight: 115.13000 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	115.06300
PSA	52.82000

Customs & Trade Information

HS Code	2933790090
Summary	2933790090. 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 4-(Hydroxymethyl)pyrrolidin-2-one?

The CAS number of 4-(Hydroxymethyl)pyrrolidin-2-one is 64320-89-4.

What are the molecular formula and molecular weight of 4-(Hydroxymethyl)pyrrolidin-2-one?

4-(Hydroxymethyl)pyrrolidin-2-one has molecular formula C5H9NO2 and molecular weight 115.13000 g/mol.

What are the upstream and downstream products of 4-(Hydroxymethyl)pyrrolidin-2-one?

For 4-(Hydroxymethyl)pyrrolidin-2-one, Upstream Products: Methyl 5-oxopyrrolidine-3-carboxylate, 2-(1-benzhydryl-azetidin-3-yl)malonic acid diethyl ester.

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-(Hydroxymethyl)pyrrolidin-2-one (CAS 64320-89-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1437919-2 (accessed 2026-11-09).

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