Demethoxycurcumin

去甲氧基姜黄素

Also known as: (1E,6E)-1-(4-Hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)-1,6-heptadiene-3,5-dione, (1E,6E)-1-(4-Hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione, Curcumin II, Desmethoxycurcumin, 1-(4-Hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione

Demethoxycurcumin (CAS 33171-16-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H18O5 and a molecular weight of 338.354 g/mol. It is also known as (1E,6E)-1-(4-Hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)-1,6-heptadiene-3,5-dione, (1E,6E)-1-(4-Hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione and Curcumin II. Key properties include a boiling point of 571.4±50.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 205.5±23.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33171-16-3
Jingsj CID
J-1397918-8
Molecular Formula
C20H18O5
Chinese Name
去甲氧基姜黄素
Molecular Weight
338.354 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point571.4±50.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point205.5±23.6 °C

Frequently Asked Questions

What is the CAS number of Demethoxycurcumin?

The CAS number of Demethoxycurcumin is 33171-16-3.

What are the molecular formula and molecular weight of Demethoxycurcumin?

Demethoxycurcumin has molecular formula C20H18O5 and molecular weight 338.354 g/mol.

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

Last updated:

How to cite: Jingsj. "Demethoxycurcumin (CAS 33171-16-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1397918-8 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.