4,4,4-Trifluoro-2-butynoic acid ethyl ester
[CAS# 79424-03-6]

Identification

• Name: 4,4,4-Trifluoro-2-butynoic acid ethyl ester
• Synonyms: Ethyl 4,4,4-trifluoro-2-butynoate; Ethyl 4,4,4-trifluorobutynoate
• Molecular Formula: C₆H₅F₃O₂
• Molecular Weight: 166.10
• CAS Registry Number: 79424-03-6
• EC Number: 635-987-2

Properties

• Solubility: Very slightly soluble (0.47 g/L) (25 °C), Calc.^*
• Density: 1.270±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Boiling point: 116.5±40.0 °C (760 Torr), Calc.^*
• Flash point: 24.6±22.2 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2013 ACD/Labs)

Safety Data

• Hazard Symbols: F;Xi
• Risk Statements: R11;R36/37/38
• Safety Statements: S16;S26;S36/37/39

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Flammable liquids	Flam. Liq.	2	H225
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	4	H312
Eye irritation	Eye Irrit.	2A	H319

• Transport Information: UN 3272 3/PG 2