Desmethoxy Curcumin

Name: Desmethoxy Curcumin
Brand: Vaqora Chemicals
SKU: VQ-036450

About Desmethoxy Curcumin

Desmethoxy Curcumin is a metabolite or degradation product of Curcumin carrying the CAS registry number 24939-17-1. The compound has the formula C20H18O5, corresponding to a molecular weight of 338.4 g/mol. Systematically, it is named (1E,6E)-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione. It is also known as Demethoxycurcumin or curcumin II.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

It is used in metabolite identification, stability-indicating method development and impurity profiling of Curcumin, as well as in QC testing and ANDA/DMF documentation. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Desmethoxy Curcumin in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Curcumin

View every impurity, metabolite and intermediate we list for Curcumin.

Curcumin impurities

Specifications & identifiers

Chemical identifiers
Product name	Desmethoxy Curcumin
Catalogue No.	VQ-036450
CAS Number	24939-17-1
IUPAC name	(1E,6E)-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione
Molecular formula	C₂₀H₁₈O₅
Molecular weight	338.4 g/mol
Exact mass	338.1154
Grade	Reference Standard
HSN code	38229090
InChIKey	HJTVQHVGMGKONQ-LUZURFALSA-N
SMILES	COC1=C(C=CC(=C1)/C=C/C(=O)CC(=O)/C=C/C2=CC=C(C=C2)O)O
PubChem CID	5469424

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	2 / 5
TPSA	83.8 Å²
Synonyms	Demethoxycurcumin, curcumin II, Demethoxy Curcumin, 4-Hydroxycinnamoyl(feroyl)methane, Feruloyl-P-hydroxycinnnamoylmethane, demethoxy-curcumin, monodemethoxycurcumin, (E/Z)-Demethoxycurcumin, 1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione, (2E)-Demethoxy Curcumin, 1,6-Heptadiene-3,5-dione, 1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)-

Safety & hazard information (GHS)

Environmental hazard

Signal word: Warning

Hazard statements

H400Very toxic to aquatic life

Precautionary statements: P273, P391, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Desmethoxy Curcumin?

The CAS Registry Number of Desmethoxy Curcumin is 24939-17-1. It is also known as Demethoxycurcumin, curcumin II, Demethoxy Curcumin.

What is the molecular formula and molecular weight of Desmethoxy Curcumin?

Desmethoxy Curcumin has the molecular formula C20H18O5 and a molecular weight of 338.4 g/mol. Its IUPAC name is (1E,6E)-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione.

What is Desmethoxy Curcumin used for?

Desmethoxy Curcumin is supplied as a characterised reference material related to Curcumin. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Desmethoxy Curcumin can I order?

We supply Desmethoxy Curcumin in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Desmethoxy Curcumin?

Yes. Every lot of Desmethoxy Curcumin is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Desmethoxy Curcumin be shipped internationally?

Yes. Desmethoxy Curcumin is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.