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Ethyl potassium malonate

Also known as: Potassium monoethyl malonate, Monoethyl malonate potassium salt, Malonic acid monoethyl ester potassium salt, Potassium ethyl malonate, Ethyl malonate monopotassium salt, Potassium 3-ethoxy-3-oxopropanoate, Propanedioic acid, monoethyl ester, potassium salt (1:1)

Ethyl potassium malonate (CAS 6148-64-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H7KO4 and a molecular weight of 170.205 g/mol. Key properties include a melting point of 194 °C (dec.)(lit.), a boiling point of 237.2ºC at 760 mmHg and a flash point of 100.8ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6148-64-7
Jingsj CID
J-6271-5
Molecular Formula
C5H7KO4
Molecular Weight
170.205 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point194 °C (dec.)(lit.)
Boiling Point237.2ºC at 760 mmHg
Flash Point100.8ºC
Exact Mass169.998138
PSA66.43000
Additional Propertysoluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Yang Xunan, et al. Application of monoethyl malonate in plant growth promotion. Patent. CN115024322.

Customs & Trade Information

HS Code2918990090
Summary2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ethyl potassium malonate?

The CAS number of Ethyl potassium malonate is 6148-64-7.

What are the molecular formula and molecular weight of Ethyl potassium malonate?

Ethyl potassium malonate has molecular formula C5H7KO4 and molecular weight 170.205 g/mol.

Is Ethyl potassium malonate hazardous?

Ethyl potassium malonate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Ethyl potassium malonate?

For Ethyl potassium malonate, Upstream Products: Diethyl malonate; Downstream Products: ethyl 3-(4-cyanophenyl)-3-oxopropanoate, Ethyl malonyl chloride, Ethyl 4-pyridylacetate.

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

Last updated:

How to cite: Jingsj. "Ethyl potassium malonate (CAS 6148-64-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6271-5 (accessed 2026-11-09).

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