2-(Propargyl)malonic acid diethyl ester
[CAS# 17920-23-9]

Identification

• Name: 2-(Propargyl)malonic acid diethyl ester
• Synonyms: Diethyl (prop-2-ynyl)malonate; Diethyl 2-propargylmalonate; Diethyl propargylmalonate; NSC 28575
• Molecular Formula: C₁₀H₁₄O₄
• Molecular Weight: 198.22
• CAS Registry Number: 17920-23-9
• EC Number: 605-851-7

Properties

• Solubility: Slightly soluble (3.2 g/L) (25 ºC), Calc.^*
• Density: 1.073±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 178 ºC^**
• Boiling point: 129 ºC (22 Torr)^***
• Refractive index: 1.4405 (20 ºC)^****
• Flash point: 121.3±23.0 ºC, Calc.^*

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

^** Valli, V. L. K.; Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry 1990, V29B(5), P481-2.

^*** Colonge, Jean; Bulletin de la Societe Chimique de France 1954, P797-8.

^**** Mozolis, V.; Lietuvos TSR Mokslu Akademijos Darbai, Serija B: Chemija, Technika, Fizine Geografija 1978, (4), P85-91.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315