1-(Hydroxymethyl)-2-pyrrolidinone

Also known as: N-(Hydroxymethyl)-2-pyrrolidinone, N-Hydroxymethyl-2-pyrrolidinone, N-Hydroxymethyl-2-pyrrolidone, N-Methylol-2-pyrrolidinone, N-Methylol-2-pyrrolidone, N-Methylolpyrrolidinone, N-Methylolpyrrolidone, 1-Hydroxymethyl-2-pyrrolidinone, 1-Hydroxymethyl-2-pyrrolidone, 1-Hydroxymethylpyrrolidin-2-one, 1-(Hydroxymethyl)pyrrolidin-2-one, Methylolpyrrolidone

1-(Hydroxymethyl)-2-pyrrolidinone (CAS 15438-71-8) 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 boiling point of 291.1ºC at 760 mmHg, a density of 1.213 g/cm3 and a flash point of 129.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 15438-71-8
Jingsj CID: J-1523953-9
Molecular Formula: C₅H₉NO₂
Molecular Weight: 115.13000 g/mol
Category: Ketones
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	291.1ºC at 760 mmHg
Density	1.213 g/cm3
Flash Point	129.9ºC
Exact Mass	115.06300
PSA	40.54000
Vapor Pressure	0.000215mmHg at 25°C
Refractive Index	1.51

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 1-(Hydroxymethyl)-2-pyrrolidinone?

The CAS number of 1-(Hydroxymethyl)-2-pyrrolidinone is 15438-71-8.

What are the molecular formula and molecular weight of 1-(Hydroxymethyl)-2-pyrrolidinone?

1-(Hydroxymethyl)-2-pyrrolidinone has molecular formula C5H9NO2 and molecular weight 115.13000 g/mol.

What are the upstream and downstream products of 1-(Hydroxymethyl)-2-pyrrolidinone?

For 1-(Hydroxymethyl)-2-pyrrolidinone, Upstream Products: 2-Pyrrolidinone, Formaldehyde, 3-Hydroxypiperidine; Downstream Products: 1-(chloromethyl)pyrrolidin-2-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. "1-(Hydroxymethyl)-2-pyrrolidinone (CAS 15438-71-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523953-9 (accessed 2026-11-09).

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