5,6-Dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one

Also known as: Desbenzyl Donepezil, Donepezil Impurity A, Donepezil Impurity 4, Donepezil Impurity 10, Donepezil Impurity 18, N-Debenzyl Donepezil, 2-[(4-Piperidinyl)methyl]-5,6-dimethoxyindanone, 4-[(5,6-Dimethoxy-1-oxoindan-2-yl)methyl]piperidine, 5,6-Dimethoxy-2-(4-piperidinylmethyl)-1-indanone, 2,3-Dihydro-5,6-dimethoxy-2-(4-piperidinylmethyl)-1H-inden-1-one, UNII-D84X9FAD1Y

5,6-Dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one (CAS 120014-30-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C17H23NO3 and a molecular weight of 289.369 g/mol. Key properties include a melting point of 258-260°C (dec.), a boiling point of 454.1±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 228.4±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 120014-30-4
Jingsj CID: J-996376-2
Molecular Formula: C₁₇H₂₃NO₃
Molecular Weight: 289.369 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	258-260°C (dec.)
Boiling Point	454.1±45.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	228.4±28.7 °C
Exact Mass	289.167786
PSA	47.56000
LogP	2.88
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.538
Storage Conditions	Refrigerator

Customs & Trade Information

HS Code	2933399090
Summary	2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. 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 5,6-Dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one?

The CAS number of 5,6-Dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one is 120014-30-4.

What are the molecular formula and molecular weight of 5,6-Dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one?

5,6-Dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one has molecular formula C17H23NO3 and molecular weight 289.369 g/mol.

What are the upstream and downstream products of 5,6-Dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one?

For 5,6-Dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one, Upstream Products: 5,6-Dimethoxy-2-(4-pyridylmethyl)-1-indanone, Donepezil hydrochloride monohydrate, 2-((1-Benzylpiperidin-4-yl)methylene)-5,6-dimethoxy-2,3-dihydro-1H-inden-1-one; Downstream Products: Donepezil hydrochloride monohydrate.

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. "5,6-Dimethoxy-2-(piperidin-4-ylmethyl)-2,3-dihydro-1H-inden-1-one (CAS 120014-30-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-996376-2 (accessed 2026-11-09).

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