3-Ethoxy-3-oxopropanoic acid is an endogenously produced metabolite. 3-Ethoxy-3-oxopropanoic acid promotes plant growth.

Physicochemical Properties

Molecular Formula	C5H8O4
Molecular Weight	132.11
Exact Mass	132.042
CAS #	1071-46-1
PubChem CID	70615
Appearance	Colorless to light yellow liquid
Density	1.2±0.1 g/cm3
Boiling Point	237.2±23.0 °C at 760 mmHg
Melting Point	47 - 50 °C
Flash Point	100.8±16.1 °C
Vapour Pressure	0.0±1.0 mmHg at 25°C
Index of Refraction	1.436
LogP	0.35
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	4
Heavy Atom Count	9
Complexity	118
Defined Atom Stereocenter Count	0
SMILES	O(C(C([H])([H])C(=O)O[H])=O)C([H])([H])C([H])([H])[H]
InChi Key	HGINADPHJQTSKN-UHFFFAOYSA-N
InChi Code	InChI=1S/C5H8O4/c1-2-9-5(8)3-4(6)7/h2-3H2,1H3,(H,6,7)
Chemical Name	3-ethoxy-3-oxopropanoic acid
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References	[1]. Application of monoethyl malonate in plant growth promotion. Patent. CN115024322.
Additional Infomation	Monoethyl malonic acid is a dicarboxylic acid.

Solubility Data

Solubility (In Vitro)

DMSO: 100 mg/mL (756.94 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (18.92 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (18.92 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 3: ≥ 2.5 mg/mL (18.92 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	7.5694 mL	37.8472 mL	75.6945 mL
	5 mM	1.5139 mL	7.5694 mL	15.1389 mL
	10 mM	0.7569 mL	3.7847 mL	7.5694 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.