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Spiro[isobenzofuran-1(3H),4'-piperidin]-3-one

Also known as: 3H-Spiro[isobenzofuran-1,4'-piperidin]-3-one, 3-Oxospiro[isobenzofuran-1(3H),4'-piperidine], 3H-Spiro[2-benzofuran-1,4'-piperidine]-3-one, Spiro[phthalan-1,4'-piperidin]-3-one, spiro[2-benzofuran-3,4'-piperidine]-1-one

Spiro[isobenzofuran-1(3H),4'-piperidin]-3-one (CAS 37663-46-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H13NO2 and a molecular weight of 203.24100 g/mol. Key properties include a melting point of 132-133ºC, a boiling point of 373.9±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 179.9±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
37663-46-0
Jingsj CID
J-1112231-9
Molecular Formula
C12H13NO2
Molecular Weight
203.24100 g/mol
Category
Pharma Intermediates
Last updated
11/2/2026

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Physicochemical Properties

Melting Point132-133ºC
Boiling Point373.9±42.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point179.9±27.9 °C
Exact Mass207.125931
PSA38.33000
LogP0.49
Vapor Pressure0.0±1.9 mmHg at 25°C
Refractive Index1.596

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. 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 Spiro[isobenzofuran-1(3H),4'-piperidin]-3-one?

The CAS number of Spiro[isobenzofuran-1(3H),4'-piperidin]-3-one is 37663-46-0.

What are the molecular formula and molecular weight of Spiro[isobenzofuran-1(3H),4'-piperidin]-3-one?

Spiro[isobenzofuran-1(3H),4'-piperidin]-3-one has molecular formula C12H13NO2 and molecular weight 203.24100 g/mol.

What are the upstream and downstream products of Spiro[isobenzofuran-1(3H),4'-piperidin]-3-one?

For Spiro[isobenzofuran-1(3H),4'-piperidin]-3-one, Upstream Products: 1-Benzyl-4-piperidone, Benzanilide.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Spiro[isobenzofuran-1(3H),4'-piperidin]-3-one (CAS 37663-46-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1112231-9 (accessed 2026-11-09).

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