5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone

Also known as: (R)-8-(Benzyloxy)-5-(oxiran-2-yl)quinolin-2(1H)-one, 2(1H)-Quinolinone, 5-(2R)-oxiranyl-8-(phenylmethoxy)-, 8-(Benzyloxy)-5-[(2R)-2-oxiranyl]-2(1H)-quinolinone, Indacaterol Impurity 5, Indacaterol intermediate

5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone (CAS 173140-90-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H15NO3 and a molecular weight of 293.317 g/mol. Key properties include a boiling point of 556.0±50.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 290.0±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 173140-90-4
Jingsj CID: J-1603349-1
Molecular Formula: C₁₈H₁₅NO₃
Molecular Weight: 293.317 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	556.0±50.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	290.0±30.1 °C
Exact Mass	293.105194
PSA	54.62000
LogP	2.26
Vapor Pressure	0.0±1.5 mmHg at 25°C
Refractive Index	1.643
Storage Conditions	2~8℃

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 5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone?

The CAS number of 5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone is 173140-90-4.

What are the molecular formula and molecular weight of 5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone?

5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone has molecular formula C18H15NO3 and molecular weight 293.317 g/mol.

What are the upstream and downstream products of 5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone?

For 5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone, Upstream Products: 8-Benzyloxy-5-(2-bromoacetyl)-2-hydroxyquinoline, 8-Benzyloxy-5-((R)-2-bromo-1-hydroxyethyl)-1H-quinolin-2-one; Downstream Products: (R)-8-(Benzyloxy)-5-(2-((5,6-diethyl-2,3-dihydro-1H-inden-2-yl)amino)-1-hydroxyethyl)quinolin-2(1H)-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. "5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone (CAS 173140-90-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1603349-1 (accessed 2026-11-09).

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