1-Butylpyrrolidin-2-one

Also known as: 1-Butyl-2-pyrrolidinone, 1-Butyl-2-pyrrolidone, N-Butyl-2-pyrrolidinone, N-Butyl-2-pyrrolidone, N-Butylpyrrolidinone, N-Butylpyrrolidone, 1-N-Butyl-2-pyrrolidinone, 1-N-Butyl-2-pyrrolidone, N-n-Butyl-2-pyrrolidinone, 2-Pyrrolidinone, 1-butyl-, Butylpyrrolidone, N-Butyl-2-azacyclopentanone

1-Butylpyrrolidin-2-one (CAS 3470-98-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H15NO and a molecular weight of 141.211 g/mol. Key properties include a boiling point of 243.8±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 103.0±9.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3470-98-2
Jingsj CID: J-20012-4
Molecular Formula: C₈H₁₅NO
Molecular Weight: 141.211 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	243.8±9.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	103.0±9.3 °C
Exact Mass	141.115356
PSA	20.31000
LogP	1.20
Vapor Pressure	0.0±0.5 mmHg at 25°C
Refractive Index	1.467

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-Butylpyrrolidin-2-one?

The CAS number of 1-Butylpyrrolidin-2-one is 3470-98-2.

What are the molecular formula and molecular weight of 1-Butylpyrrolidin-2-one?

1-Butylpyrrolidin-2-one has molecular formula C8H15NO and molecular weight 141.211 g/mol.

What are the upstream and downstream products of 1-Butylpyrrolidin-2-one?

For 1-Butylpyrrolidin-2-one, Upstream Products: 2-Pyrrolidinone, Butyraldehyde, 1-Bromobutane; Downstream Products: 4-(Butylamino)-1-butanol.

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-Butylpyrrolidin-2-one (CAS 3470-98-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20012-4 (accessed 2026-11-09).

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