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3-(Ethoxymethylene)pentane-2,4-dione

Also known as: 2,4-Pentanedione,3-(ethoxymethylene)-, 3-(Ethoxymethylene)-2,4-pentanedione, 3-(ethoxymethylene)-2,4-pentanedione, 3-(ETHOXYMETHYLENE)-2,4-PENTANEDIONE, 3-(ETHOXYMETHYLENE)ACETYLACETONE, 3-Ethoxymethylene-2,4-pentandione, 3-Ethoxymethylene-2,4-pentanedione, 3-ETHOXY METHYLENE PENTANE-2,4-DIONE, 3-(ethoxymethylidene)pentane-2,4-dione, ethoxymethylene acetyl acetone, AKOS MSC-0742, 1-Acetylaceton-1-ylidene(ethoxy)methane, methyl 2-ethoxy-1-methylcarbonyl-vinyl ketone, acetylacetonyl ethoxy methane, NSC 46601

3-(Ethoxymethylene)pentane-2,4-dione (CAS 33884-41-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H12O3 and a molecular weight of 156.17900 g/mol. Key properties include a boiling point of 303.3ºC at 760mmHg, a density of 1.01g/cm3 and a flash point of 134.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33884-41-2
Jingsj CID
J-21192-7
Molecular Formula
C8H12O3
Molecular Weight
156.17900 g/mol
Category
Ketones
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point303.3ºC at 760mmHg
Density1.01g/cm3
Flash Point134.2ºC
Exact Mass156.07900
PSA43.37000
LogP1.08480
Refractive Index1.483-1.485

Customs & Trade Information

HS Code2914509090
SummaryHS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-(Ethoxymethylene)pentane-2,4-dione?

The CAS number of 3-(Ethoxymethylene)pentane-2,4-dione is 33884-41-2.

What are the molecular formula and molecular weight of 3-(Ethoxymethylene)pentane-2,4-dione?

3-(Ethoxymethylene)pentane-2,4-dione has molecular formula C8H12O3 and molecular weight 156.17900 g/mol.

What are the upstream and downstream products of 3-(Ethoxymethylene)pentane-2,4-dione?

For 3-(Ethoxymethylene)pentane-2,4-dione, Upstream Products: Triethyl orthoformate, 2,4-Pentanedione; Downstream Products: 4-acetyl-5-methyl-1-phenylpyrazole, 1-(1,3-dimethyl-1H-pyrazol-4-yl)ethanone, 1-(1,5-Dimethyl-1H-pyrazol-4-yl)ethanone.

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

Last updated:

How to cite: Jingsj. "3-(Ethoxymethylene)pentane-2,4-dione (CAS 33884-41-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21192-7 (accessed 2026-11-09).

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