5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane

Also known as: (5RS)-5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane, Venlafaxine Cyclic Impurity, Venlafaxine EP Impurity E, Spiro venlafaxine, UNII-W0KZX6545W, 1-Oxa-3-azaspiro[5.5]undecane, 5-(4-methoxyphenyl)-3-methyl-

5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane (CAS 93413-70-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C17H25NO2 and a molecular weight of 275.38600 g/mol. Key properties include a boiling point of 399.8ºC at 760 mmHg, a density of 1.09g/cm3 and a flash point of 135.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 93413-70-8
Jingsj CID: J-861913-4
Molecular Formula: C₁₇H₂₅NO₂
Molecular Weight: 275.38600 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	399.8ºC at 760 mmHg
Density	1.09g/cm3
Flash Point	135.7ºC
Exact Mass	275.18900
PSA	21.70000
LogP	3.33910
Refractive Index	1.554

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. 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 5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane?

The CAS number of 5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane is 93413-70-8.

What are the molecular formula and molecular weight of 5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane?

5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane has molecular formula C17H25NO2 and molecular weight 275.38600 g/mol.

What are the upstream and downstream products of 5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane?

For 5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane, Upstream Products: Formaldehyde, 1-[2-Amino-1-(4-methoxyphenyl)ethyl]cyclohexanol; Downstream Products: Venlafaxine.

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-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane (CAS 93413-70-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-861913-4 (accessed 2026-11-09).

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