4-(Methoxycarbonyl)phenylacetylene
[CAS# 3034-86-4]

Identification

• Name: 4-(Methoxycarbonyl)phenylacetylene
• Synonyms: 4-Ethynylbenzoic acid methyl ester; Methyl 4-ethynylbenzoate; Methyl p-ethynylbenzoate; p-Ethynylbenzoic acid methyl ester
• Molecular Formula: C₁₀H₈O₂
• Molecular Weight: 160.17
• CAS Registry Number: 3034-86-4
• EC Number: 663-258-9

Properties

• Solubility: Very slightly soluble (0.16 g/L) (25 ºC), Calc.^*
• Density: 1.11±0.1 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 103-105 ºC^**
• Boiling point: 239.4±23.0 ºC (760 Torr), Calc.^*
• Flash point: 92.0±20.0 ºC, Calc.^*

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

^** Niamnont, Nakorn; Organic Letters 2009, V11(13), P2768-2771.

Safety Data

• Hazard Symbols: Xi
• Risk Codes: R36/37/38
• Safety Description: S22;S26;S36

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.	2	H319
Eye irritation	Eye Irrit.	2A	H319
Acute toxicity	Acute Tox.	4	H302