Terephthalic Acid is a technically defined substance with a molecular formula of C8H6O4 and a molecular weight of 166.13. It exhibits a Melting Point range of 210.0 to 211.1 °C, decomposing at this temperature. The Vapour Density is 5.73. This compound falls under the category of Carboxylic acids. The GHS signal word for Terephthalic Acid is Danger due to potential reproductive toxicity and skin irritation.

• CAS Number: 100-21-0
• Molecular Formula: C8H6O4
• Vapour Density: 5.73
• GHS Signal Word: Danger
• Exact Mass: 166.02660867
• Boiling Point: Decomposes (no boiling point)
• Melting Point: 210.0 to 211.1 °C — decomposes
• Molecular Weight: 166.13
• Hazard Statements:
• H360D ***: May damage the unborn child [Danger Reproductive toxicity]
• H315: Causes skin irritation [Warning Skin corrosion/irritation]