4-Bromo-1-tosylpyrrolidin-3-one

Also known as: 3-Pyrrolidinone, 4-bromo-1-[(4-methylphenyl)sulfonyl]-, 4-BROMO-1-(TOLUENE-4-SULFONYL)-PYRROLIDIN-3-ONE, 4-Bromo-1-(toluene-4-sulfonyl)-pyrrolidin-3-one, 4-bromo-1-(4-methylphenyl)sulfonylpyrrolidin-3-one, 4-bromo-1-[(4-methylphenyl)sulfonyl]pyrrolidin-3-one

4-Bromo-1-tosylpyrrolidin-3-one (CAS 170456-82-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H12BrNO3S and a molecular weight of 318.18700 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 170456-82-3
Jingsj CID: J-1147000-1
Molecular Formula: C₁₁H₁₂BrNO₃S
Molecular Weight: 318.18700 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	316.97200
PSA	62.83000
LogP	2.35060

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-Bromo-1-tosylpyrrolidin-3-one?

The CAS number of 4-Bromo-1-tosylpyrrolidin-3-one is 170456-82-3.

What are the molecular formula and molecular weight of 4-Bromo-1-tosylpyrrolidin-3-one?

4-Bromo-1-tosylpyrrolidin-3-one has molecular formula C11H12BrNO3S and molecular weight 318.18700 g/mol.

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-Bromo-1-tosylpyrrolidin-3-one (CAS 170456-82-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1147000-1 (accessed 2026-11-09).

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