1-Acetoxy-2-propyne
[CAS# 627-09-8]

Identification

• Classification: Chemical reagent >> Organic reagent >> Ester >> Propyl esters
• Name: 1-Acetoxy-2-propyne
• Synonyms: 2-Propynyl acetate
• Molecular Formula: C₅H₆O₂
• Molecular Weight: 98.10
• CAS Registry Number: 627-09-8
• EC Number: 628-780-3

Properties

• Solubility: Sparingly soluble (20 g/L) (25 ºC), Calc.^*
• Density: 0.997±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Boiling point: 123-125 ºC^**
• Refractive index: 1.418 (589.3 nm 24 ºC)^***
• Flash point: 28.3±17.2 ºC, Calc.^*

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

^** Akhrem, A. A.; Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya 1960, P693-702.

^*** Gaudemar, Marcel; Ann. chim. (Paris) [13] 1956, V1, P161-213.

Safety Data

• Hazard Symbols: Xn
• Risk Codes: R10;R20/21/22
• Safety Description: S16;S23;S36/37

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H332
Flammable liquids	Flam. Liq.	3	H226
Acute toxicity	Acute Tox.	4	H312
Acute toxicity	Acute Tox.	3	H301
Acute toxicity	Acute Tox.	4	H302
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2	H319

• Transport Information: UN 1992 3/PG 3