2-Ethynylbenzoic acid methyl ester
[CAS# 33577-99-0]

Identification

• Name: 2-Ethynylbenzoic acid methyl ester
• Synonyms: Methyl o-ethynylbenzoate; NSC 649436; o-Methoxycarbonylphenylacetylene
• Molecular Formula: C₁₀H₈O₂
• Molecular Weight: 160.17
• CAS Registry Number: 33577-99-0
• EC Number: 893-922-5

Properties

• Solubility: Very slightly soluble (0.27 g/L) (25 ºC), Calc.^*
• Density: 1.11±0.1 g/cm³ (20 ºC 760 Torr), Calc.^*
• Boiling point: 80-85 ºC (1 Torr)^**
• Refractive index: 1.5550 (589.3 nm 22 ºC)^**
• Flash point: 97.6±20.0 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2015 ACD/Labs)

^** Vasilevsky, Sergei F.; Tetrahedron 2004, V60(31), P6685-6688.

Safety Data

Hazard Classification

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