Annuloline

Also known as: 2-[(E)-2-(3,4-Dimethoxyphenyl)ethenyl]-5-(4-methoxyphenyl)oxazole, 2-[(E)-2-(3,4-dimethoxyphenyl)ethenyl]-5-(4-methoxyphenyl)-1,3-oxazole, Oxazole, 2-[(1E)-2-(3,4-dimethoxyphenyl)ethenyl]-5-(4-methoxyphenyl)-, (E)-2-(3,4-Dimethoxystyryl)-5-(4-methoxyphenyl)oxazole

Annuloline (CAS 3988-51-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H19NO4 and a molecular weight of 337.36900 g/mol. Key properties include a boiling point of 531.9ºC at 760 mmHg, a density of 1.179g/cm3 and a flash point of 275.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3988-51-0
Jingsj CID: J-1345568-0
Molecular Formula: C₂₀H₁₉NO₄
Molecular Weight: 337.36900 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	531.9ºC at 760 mmHg
Density	1.179g/cm3
Flash Point	275.5ºC
Exact Mass	337.13100
PSA	53.72000
LogP	4.53780
Refractive Index	1.606

Frequently Asked Questions

What is the CAS number of Annuloline?

The CAS number of Annuloline is 3988-51-0.

What are the molecular formula and molecular weight of Annuloline?

Annuloline has molecular formula C20H19NO4 and molecular weight 337.36900 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. "Annuloline (CAS 3988-51-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1345568-0 (accessed 2026-11-09).

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