(1-Ethoxyethylidene)propanedioic acid diethyl ester
[CAS# 3044-06-2]

Identification

• Name: (1-Ethoxyethylidene)propanedioic acid diethyl ester
• Synonyms: Diethyl (1-ethoxyethylidene)malonate; Diethyl 2-(1-ethoxyethylidene)malonate; NSC 233875
• Molecular Formula: C₁₁H₁₈O₅
• Molecular Weight: 230.26
• CAS Registry Number: 3044-06-2
• EC Number: 221-249-3

Properties

• Solubility: Slightly soluble (3.7 g/L) (25 ºC), Calc.^*
• Density: 1.062±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 26-27 ºC^**
• Boiling point: 123-128 ºC (3 Torr)^***
• Refractive index: 1.4634 (589.3 nm 25 ºC)^**
• Flash point: 117.3±24.6 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** McElvain, S. M.; Journal of the American Chemical Society 1942, V64, P1831-6.

^*** Sah, Peter P. T.; Journal of the American Chemical Society 1931, V53, P1836-9.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2A	H319
Acute toxicity	Acute Tox.	4	H302