4-Pentynoic acid
[CAS# 6089-09-4]

Identification

• Classification: Chemical reagent >> Organic reagent >> Fatty acid
• Name: 4-Pentynoic acid
• Synonyms: Propargylacetic acid
• Molecular Formula: C₅H₆O₂
• Molecular Weight: 98.10
• CAS Registry Number: 6089-09-4
• EC Number: 228-027-5

Properties

• Solubility: Sparingly soluble (27 g/L) (25 ºC), Calc.^*
• Density: 1.096±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 57.7 ºC^**
• Boiling point: 136-139 ºC (66 Torr)^***
• Flash point: 90.8±17.3 ºC, Calc.^*

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

^** "PhysProp" data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

^*** Schulte, Karl Ernst; Chemische Berichte 1954, V87, P964-70.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	4	H332
Substances or mixtures corrosive to metals	Met. Corr.	1	H290
Acute toxicity	Acute Tox.	4	H312
Serious eye damage	Eye Dam.	1	H318